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Soon he was dribbling his pre-cum into her saliva filled mouth. Kneeling in front of the muscular cop sitting like a king in the chair, he held her hair in one hand as he did his best to suffocate her by pulling her mouth up and down on his curved, veined cock - again and again.

Elaine was snorting and snuffling through her nose and feverishly stroking and patting his thighs with her fingers in a mute plea for mercy, until she was suddenly released to sit back on her haunches, dribbles and strings of semen and saliva running down her chin.

She was ordered not to swallow the load. She was told to spit the semen into her hand and then lick it up. It was a nasty, degrading, humiliating act. Then Gachie took his place in the chair. She was made to suck him to completion and lick his nut sack - getting it shiny with her saliva. She wondered how much time had passed already but had no clear idea when she had arrived at the warehouse. At one point they got her on the mattress again. Simba got on his back and Gachie and Gacheru lifted her up she weighed only 51 kilos and then plopped her down straddling Simba.

He got his long dong into her wet pussy and the other two slapped her ass to get her moving. Sweat flew off Elaine as she worked herself on his cock, and her pointy breasts bobbed up and down prettily. The Kikuyu woman was second oldest on the squad after Corporal Mosi. She had, incongruously, been involved with the boy and girl scouts before her appointment to the department. But she was as mean and tough as any of the men.

She was 45, of medium height and heavy-set. She had big tits, a fat stomach and a big ass. Her hair was cropped short and she had two gold teeth. She was laughing as the men sexed Elaine. And then Elaine cried out as someone began whipping her ass. Turning around, she saw that it was Nyarai. The pain was considerable and Elaine begged for her to stop, every trace of dignity being beaten out of her. Mosi came over to enjoy Elaine's torment. Nyarai stepped back, happy as she had been able to get Elaine humping like a madwoman.

Simba, now very close to cumming, grabbed her hips and held her tightly against him as his passion exploded and he ejaculated inside her. After he'd finished, Elaine was pulled off him. Nyarai grabbed Elaine by her hair and slapped her face.

This got her attention. She got very close to her and began talking to her in a low voice. She then tucked her thumb under her fingers and worked her entire fist into the Jewish woman. She was totally opened and stretched as the older woman spread her vaginal walls far apart. Nyarai wanted to make her cum to establish her hold over her, as the men had done. She forced her fist in deep to press against the epicenter directly. This made Elaine groan and moan. Several of the men crowded around to watch the older black woman take the measure of the younger white woman.

This soon became a spiraling cadence and Nyarai made Elaine cum in bursts of sweet wet release as she fisted her expertly. And that meant a total face-sitting, smothering experience. Elaine had never had sex with another woman before. Elaine, however, became extremely aroused. The older woman ordered her to work her lips and tongue around her twat, inside her hole. As Nyarai ground into her, Elaine smelled her sexual aromas - all her dark musky smells. The extent of her own obedience and submission surprised Elaine.

Lick my clit, lick my clit - you stupid cunt. Stick your tongue out, you're just toilet paper, I'm going to wipe myself on your white face, slut. You were born to eat my black cunt. I am so close. Now, get your nose and mouth on my asshole. Wipe your tongue on my asshole. Find my asshole, white girl and lick it! Ah fuck yeah, you found it. Stick your tongue inside, yes, like that, ahhhh you slutty asshole licker.

Yeah, I'm gonna cum all over your face She was smothering her. She smothered Elaine again and again; forward face sitting, reverse face sitting and side saddle face sitting. She loved the feeling of the Jewess struggling to breathe under her ass.

She ground and slid her pussy and ass back and forth on her face moaning louder and louder with each passing moment and working herself into an orgasmic frenzy. She came for what seemed like two minutes and Elaine could barely breathe. She gasped and struggled trying to breathe the air around the hairy, smelly pussy that covered her face.

Nyarai smiled, showing the gold teeth in her mouth. Elaine looked up through red-rimmed eyes to see Mosi laughing at her with a bottle in his hand. He dribbled some of the liquor into her mouth. Then he poured some liquor over her thick patch of pubic hair, until the rum was running down her crack like a river.

Elaine looked over at Zuberi, now completely naked as she was. He was smoking and drinking. He sported another prodigious erection and was looking at her. He laughed — not at all apologetic. He fucked her again. So did Kamau and Tembo. When they were done with Elaine, she could barely stand. She had cum so many times her legs were shaky and she felt lightheaded. Gachie drove her home and made her give him another blow job in the driveway to her home.

The next day they released Jacob. Husband and wife had a tearful reunion. Elaine wondered when there would be next time, a thought which was incredibly stupid. Munyambu could make her and Jacob do anything he wanted, anything at all. Munyambu called the couple and told them that he was going to put Elaine into a porn video. They were told to be ready. Someone would pick them up.

They had no choice. Jacob was on pins and needles. Every time he thought about what was coming Then he would touch the cast on his left hand and wince. Then he would imagine both of them forced into outrageous and degrading acts. And that would excite him. Elaine, who had already been to the warehouse, was more settled about what was coming. Jacob had pestered her with endless questions. That afternoon, Gacheru came by in a black car and picked them up.

Mosi joined him and then Munyambu came out of an office. They put her on a special training machine. I decided to let you He felt himself falling down a deep well.

Whatever he had embraced in the past when it came to his sex life with Elaine, now he knew they were about to enter a new and scary phase. And it began when Kamau took Elaine by the elbow and steered her towards the lighted set, right in the middle of the warehouse. Jacob, sweating and nervous, found his pulse racing when his eyes fell on the table. Then several Chinese men approached.

The one with the clipboard was Lei Peng, the owner of the production company and the director. This was Han Shun. He was a quiet, but a cruel sexual sadist. He and Munyambu had a lot in common, except that Shun was 10 years younger. Actually, for a porn production like this, there was a two-page synopsis and not much more.

The Chinese actors portraying Koreans were given a few lines and fed these lines on cue cards most of the time. And, given the things that they made a woman do, this was not difficult. The opening scene had Elaine seated in a chair under a single light bulb Shun and three Chinamen garbed similarly surrounded her; and Shun played at grilling her for information.

This would appear as Chinese sub-titles on the tape This was a very short scene. As her husband watched from a chair, the men took off all her clothes. When she was naked, they hung her from a hook by her wrists. Then Shun squirted her from her shoulders to her thighs with clear lotion from a bottle. He rubbed this all over her back, belly, tits, ass, especially her crack, her crotch and her thighs.

When she was glistening in the lights, he produced a cattle prod. It had a blue plastic handle, a 30 centimeter flexible shaft ending in a red plastic probe topped with two 1 centimeter aluminum prods.

She was wetted and this would help the electricity flow. He handled it with a flourish like he was going to conduct an orchestra. Shun began to apply the cruel tips to her buttocks first. Then her belly and finally he had one of the privates spread her ass cheeks so he could shock her on her anus. And, of course, they were excellent targets for them to torture. With her tits wet and exposed she shuddered at what she suspected was coming next.

He began treating her tits to little shocks starting at the top of each mammary gland and working around the nipples. He gave them little teasing touches or, more cruelly, he pressed it deep into her flesh.

By the time he got to her big brown areolas, she was sweating, crying out and her resolve was weakening. He took a long time to work her big areolas over. Then he turned his attention to her nipples. In the end, he worked on the nipples slowly and sadistically - just a touch, and then a longer one: She passed out and had to be revived so he could continue the torture. He held the tip against each nipple, and then he pushed the tips against them When finally Shun turned his attention to her clitoris, Elaine, who had been howling, began shrieking at the top of her lungs.

Each time he shocked her clit, Elaine screamed. When he stroked the tips against the area between her cunthole and her clitoris and shocked her pisshole, Elaine lost control of her bladder and a golden stream of piss splattered on the concrete floor. This ended the scene. The next scene found poor Elaine tied hand and foot to a narrow bench. Shun asked her some questions which she was unable to answer of course.

He wrapped this tightly around her head. Then one private held her head while Shun poured a thin stream of water - almost a thread of water - on her nose and mouth.

It made her feel like she was drowning. Shun continued the scene. Peng, as director, finally called a halt. They had plenty of footage in the can. As the two camera operators caught the action, Jacob squirmed uneasily in his seat. The script called for the North Koreans to sexually abuse their victim.

And for the next hour, Shun and the three privates slapped and then raped Elaine in her mouth and vagina. They pulled and pushed her around like a doll and fucked her in every position you could imagine.

Every sloppy invasion of her two holes Shun was balls deep in her mouth and reaching the entrance to her throat. Another man was massaging her throat as Shun penetrated her to his fullest extent. Shun dashing to get behind her and the private scurrying to get his cock in her mouth. They did this like a game, taking turns with her fore and aft until they climaxed. Then Shun, who finally came in her vagina, withdrew and came over to stand next to the private as he came in her mouth.

Jacob was shocked at what they were did to his wife in the video. He and Elaine, over the years, had talked about and even played with some extreme fantasies, but this was very real and very extreme.

She was too valuable. But he worried about the emotional wear and tear on her. He was of two minds. He found the severe abuse of his wife extremely arousing. And he felt a tremendously guilty that he was aroused. Later he and Elaine talked about what happened to her and how he reacted. She caught sight of him with an erection as she was tortured and raped. She was surprisingly forgiving. In many ways, it was much easier for them as a couple than it was for the Braxtons or the Rangans.

When they brought the couple in for this shoot, Shun supervised the boys strapping Elaine down to a gynecological table. She was propped up so that by looking at a mirror suspended over her crotch she could see what was going on between her legs. Jacob sat watching again with an erection. Elaine had smallish areolas and her tits were only lemon-sized, but they were crowned with very big nipples Following this, he shoved a blunt copper rod into her wet sexhole. Finally, he greased a 12 centimeter stainless-steel dumbbell with a convex shaft and worked into her shit hole.

Last, he clamped her clitoris, using a type of alligator clip. A black box, with its switches and dials, sat on a tray off to her left. He put headphones on her and powered the machine up. Then he sent electricity into her tits. It felt to Elaine as if someone was pulling on them and then shoving needles into them. They became super erect and soon began to swell up.

Eventually, her nipples, when the session was over, were blown-up grotesquely. Grinning, he flipped a switch and Elaine began jerking and twitching as the current surged into her clitoris. She began to get very juicy. Shun took hold of another dial, made a slight adjustment and Elaine began to whimper as the rod in her pussy came alive with hot, prickling sensations. Elaine could feel it pressing on her G-spot and then because of its length, felt it deep in her epicenter. Shun fiddled with the dials and the sensations became very intense.

Juice began seeping from her vagina. Then Shun powered up the circuit in her asshole. It went in - and - out - in - and - out methodically. Jacob was beside himself as he watched the machine take hold of Elaine and stimulate her like she was a doll or a puppet. Shun now combined pulses and with other patterns, to work her G-spot and the epicenter from inside. Her juicy pussy drooled more with each combination.

He turned it up sending more amperes into her rectum and vagina. Elaine now alternated between staring at her pussy displayed in the mirror. A cool shot that Chang made sure to get to closing her eyes and moaning.

She began to feel that she had just become When she felt herself getting ready to cum, she tried to resist, but it was hopeless. When the orgasm hit, she seemed to explode. Her sexhole clamped down on the thick copper rod All this made hot juice burst from her urethra like she was pissing. And the sound of her shrieking filled the room. The sound man kept the boom over her head to catch the grunts, groans and screams coming from her lips.

She soon babbled like an idiot between orgasms. It was mind-blowing to hear. She came over and over again until she eventually passed out. Elaine went through an endless cycle of arousal, orgasm, and ejaculation while she was bound, deprived of other sensory input and ruthlessly programmed by the seductive tape which droned on and on in her ears.

Pussy juice just kept spurting and jetting whenever she ejaculated. Shun stayed in the scene rubbing his hands in the best Asian villain tradition. He was so turned on watching his wife, that he had a raging erection.

Over time this became a problem as soon his balls began to ache. They left him there to watch his wife. They kept her on the machine for about 30 minutes so both crews got enough footage. They kept her on the device for almost two hours while the crew took a break and had lunch. In that time, she came countless times and passed out again. Jacob excused himself and went to the restroom to jerk off. First Kamau, then Mosi, the Munyambu himself Jacob had to watch as Elaine kissed, licked and sucked each man to completion.

Munyambu took pity on him and asked him if he wanted his wife to suck his prick too? So, out came his circumcised prick and Elaine, tired in mind, body and mouth, but wanting to be obedient to the Chief Inspector and loving her husband, dutifully sucked his prick and made him cum. Jacob got erect once more watching the machine fuck her. Eventually, they took her off.

She was totally exhausted by this point. She collapsed when they took her off the machine. Her nipples, labia and clitoris were so swollen that to touch them elicited cries from her.

They were cartoonish in their size and shape. Over engorged with blood, her nipples were brownish-black and her clitoris and labia were purple. They looked almost hideous.

She stank and was a sweaty mess. She asked for water. When a woman was taken off the machine each one reacted differently, but they often lost control of their bowels at that point. The toilet was on the other side of the warehouse, so as she stumbled forward, some of the crew and the cops began laughing at her. The final scene was even more bizarre. When they did it to Elaine, Jacob had images of geese in France being fed in such a cruel way. The feeding gag started life as a pacifier shaped squeaky toy for dogs.

Shun had drilled three holes in the tip and fitted it with a tube so the wearer could not block all the holes with her tongue.

An enema bag was filled with a mixture of water, rice, oil, cooked vegetables and raw eggs. This was blended with a mixer, poured into the bag and gravity did the rest. This made her clamp down on the gag which squeezed more of liquid meal into her mouth. This created an irresistible cycle which forced her to gulp and swallow It was very humiliating and a torture in its own right. Jacob found himself with another erection watching this done to Elaine.

Especially as her belly seemed to swell the longer they left her on the feeding tube. Elaine told Jacob, the next day, she was surprised to see how aroused he got as they force-fed her. It was a private club. A black club and they were the only white people there.

Munyambu had set it up for Peng to tape a porn video in the club. There were black women as well as black men there. There was a long bar on one side and several tables near a small stage on both sides of the room. In the back there were three booths, side-by-side. Kamau steered the couple to the booth on the far left, closest to the restrooms.

The all sat down. The Chief Inspector ordered drinks. Her breasts, with her very prominent nipples, were showing since she was not wearing a bra. She had been ordered to wear sexy clothes: There was a sound system and a disc jockey was playing tunes. The MC spoke for a moment or two and then pointed to the booth where Jacob and Elaine sat, now alone. He had the couple stand up and introduced them to everyone. He then told Elaine to come up. She did and immediately people shouted for her to take off her clothes.

They had been briefed, but now he could really see what this video was going to be about. Then he made her spread her legs and masturbated her in front of everyone. The MC then brought her back to the table and she sat down. It was weird for Jacob with her sitting there naked. After allowing her to sip from her drink, the MC took her around to all the tables to personally introduce her. Men and women felt her up and tried to see how much they could do to her.

To see how wet they could make her. Lots of fingers were shoved into her pussy and asshole. Men gathered around her and then the fun really started. The MC announced that she was available for a certain amount of money. Elaine was forced to suck out the cum from each of the condoms and swallow the contents after each man had ejaculated. It was demeaning and degrading, but Jacob found himself with an erection the whole time. His humiliation at having to sit there just a feet from where Elaine was being fucked fore and aft was palpable to everyone.

Everyone black person in the room knew he was her husband. Being reduced to a spectator at a sex show starring his wife had reduced Jacob to a mere cuckold. Munyambu had made a deal with a friend of his, Colonel John Ojuang, from the Langata Army barracks, which was just across the road from the station.

Munyambu brought Jacob and Elaine over to the base on a Saturday afternoon. Sixteen men paid to get a blowjob from her. Jacob had to watch as Elaine took one man after another into her mouth.

Her cheeks hollowed as she sucked. The organs rode in and out of her mouth like pistons. Her saliva, dripped, drooled and got thicker as each man face fucked her. The Colonel let it be known that Jacob was her husband, so his humiliation was huge. Young soldiers smirked and laughed at him while his wife was used as a cum dump. Jacob grew more submissive with each indignity. They humiliated and degraded Jacob in as many small ways as they could. Munyambu hated him almost as much as he despised Gopal Rangan.

Harry Braxton, being English, drew his grudging admiration. The English had, for so many years, dominated Kenya. And as for Jews, well Munyambu knew about them mostly from surfing the Internet. Kamau, big and strong and loving white women He started early to come over and fuck her in their home Having Jacob to humiliate was a bonus.

Even more than Harry, Jacob elicited sadistic impulses in Kamau. He would get Elaine naked on their bed Then, he would challenge him to have sex with her before he did, but Jacob would usually fail. Then, grinning at his discomfort, Kamau would tell him how he was going to use her.

Excited by the slippery feel of her well-used, cum filled pussy, he would cum in seconds, as Kamau and the others would mock and heckle him. Elaine, for her part, sometimes chose to defy Munyambu. He would then punish her cruelly More than any of her friends, she became sexually aroused when she was punished. She came to like having her tits cruelly squeezed or whipped with a belt or strap. One man was actually a neighbor of the Weingartens. This man, an Englishman, brought his fourteen year old son to pop his cherry.

He even got to spank her. The boy laughingly commented that he was bigger in the manhood department than Jacob. Several paying customers the Chief Inspector brought over to their home were allowed to tie Jacob up and then dominate Elaine.

She became addicted to being humiliated and learned to crave the endorphins triggered by pain. This was probably a good thing as Munyambu regularly whipped, caned, paddled or strapped her full butt. The Chief Inspector and Kamau sold her over and over again to men who wanted to sex her up and hurt her. Munyambu brought the Weingartens to a house on the edge of Kibera, a shantytown on the outskirts of Nairobi. It was owned by Subira, a Kikuyu woman, who was politically powerful. Now she was an ally.

The Chief Inspector brought Jacob and Elaine to her. Subira was 55, a big hairy woman with very large, floppy breasts. She wore a native print dress and no shoes or sandals. Her hair was disheveled but some attempt at braids was in evidence. She sat like a Queen on her porch. She eyed the white couple in tow. Jacob and Elaine hung behind Munyambu brought them forward and introduced them to Subira. Jacob was immediately intimidated. Jacob could see that she was some sort of gangster.

The older woman then snapped her fingers and a young pretty black girl came out of the house. This was Bahati, her 16 year old granddaughter. She was sullen, tall like her grandmother, long-legged and pretty. Subira made a big deal out of giving Elaine to Bahati. The girl came over and grabbed Elaine by the ear, treating her like a child and took her out the gate to a open field next to the house. She tied his wrists behind his back.

Then she made him bend over her porch, tied him to the rail and pulled his pants down. She slapped his nut sack and spread his ass cheeks. Her neighbor, a younger married woman named Malaika, showed up as she was humiliating Jacob. Malaika began laughing and clapping her hands. Jacob looked back to see a pretty younger woman enjoying his predicament. Subira went into the house and fetched a strap and gave Malaika a switch.

It was very humiliating as kids from the neighborhood wandered in and Jacob had to deal with the shame of being publicly displayed. They stood on either side of him and gave him a thorough whipping.

Malaika giggled whenever Jacob groaned or cried out. Together they reduced him to begging. Subira tied his nut sack with a cord They even greased a stick and shoved it up his ass so he would be completely degraded. A procession of small children followed him, taunting and mocking him.

Antimatter , while being the opposite of matter , has the same kind of inertia, with the forces oriented in the same direction, as normal matter. Thus, storing antimatter on board a vehicle made of matter would not achieve any kind of inertia negation.

Inertia negation is a commonplace technology in numerous science fiction series. It is used as an explanation as to why the crew of starships can withstand complex maneuvres or acceleration to FTL speeds. Notable appearances include the Star Trek franchise, where inertial dampers protect the crew from the dangers of sudden accelerations.

Another example is in the movie Alien. In the fictional Mass Effect universe dark energy fields are used ubiquitously to modify mass of objects, e. Inertia negation is used to counter the effects of sudden acceleration that would impart structural stresses on star ships when suddenly accelerating to or decelerating with the impulse drive , and which would cause passengers to be thrown against walls and crushed by the inertial effects of the vehicle suddenly accelerating or slowing.

Such a device does not need to negate or alter inertia — a similar effect can be achieved by creating a gravitational field opposing the acceleration of the vessel. Such technology, while still nonexistent at the present time and considered unlikely to be achieved in the foreseeable future, is by far more realistic than manipulating inertial mass. Inertial Dampening or "Damping", if you prefer your inertia dry is a piece of Applied Phlebotinum , designed to allow humans to accelerate and decelerate at high rates without becoming humorously colored paste on the walls.

In Real Life , "inertia dampers" refer only to devices or processes which remove the effects of inertia, not the inertia itself seeing as how the latter is impossible according to the currently-understood laws of physics.

Many of the examples on this page would thus be more correctly referred to as "inertial negation ". Its intention is to "take away" inertial effects; i. For the most part, it's an invisible seatbelt substitute for crew and cargo. Sometimes Inertial Dampening has a "lag", where a sharp turn or quick deceleration will momentarily cause a reaction quick fall into the console or press back due to high accelerations.

Inertial Dampening is generally not Tim Taylor Technology. Generally, however, the Star Trek Shake has no relation to the direction of inertia; i. Though often left unmentioned, Inertial Dampening is a requisite side-technology to any spaceship that can turn or accelerate more quickly than a fighter jet.

Note that the physical Hand Wave that accompanies many forms of Faster-Than-Light Travel dictate that the ship does not accelerate in the traditional Newtonian or, for that matter, Einsteinian fashion, and so the inertial dampener is mostly for maneuvering and orbit changes.

In hard Sci-Fi , especially written but occasionally not, a more realistic method is used to cushion acceleration shock. Immersion in a fluid equal in density to the body would theoretically cause buoyancy forces to act counter to any accelerations; this is sometimes coupled with cryonics.

Some method to allow the subject to continue to breathe in the fluid would be required, be it oxygenated liquids or a circulatory gas-exchange system. Since people riding around in bathtubs are not interesting on-screen except from a voyeur's point-of-view this has only rarely trickled down to the big and small screens; the exploration ship Lewis and Clark in Event Horizon and presumably the cryonics pods in the Alien series are the exceptions.

See also Artificial Gravity. The tremendous accelerations involved in the kind of spaceflight seen on Star Trek would instantly turn the crew to chunky salsa unless there was some kind of heavy-duty protection. Hence, the inertial damping field. The Next Generation Technical Manual, page For a space opera RPG setting I am considering adding inertia manipulation technology. But can one make a self-consistent inertia dampener without breaking conservation laws?

What are the physical consequences? How many cool explosions, superweapons, and other tropes can we squeeze out of it? How to avoid the worst problems brought up by the SF community? As Newton put it, inertia is the resistance of an object to a change in its state of motion. The mass in the formula is the inertial mass. Mass is a measure of how much there is of matter, and we normally multiply it with a hidden constant of 1 to get the inertial mass — this constant is what we will want to mess with.

There are relativistic versions of the laws of motion that handles momentum and inertia for high velocities, where the kinetic energy becomes so large that it starts to add mass to the whole system. This makes the total inertia go up, as seen by an outside observer, and looks like a nice case for inertia-manipulating tech being vaguely possible. However, Einstein threw a spanner into this: At least in my old school physics textbook early s!

So, an inertia manipulation technology will have to imply some form of gravity manipulation technology. Which may be fine from my standpoint, since what space opera is complete without antigravity? In fact, I already had decided to have Alcubierre warp bubble FTL anyway, so gravity manipulation is in.

Let us posit that there is a magical field that allows us to dial up or down the proportionality constant for inertial mass: Let us assume the field is. Now the momentum and kinetic energy jumps by a factor of if the velocity remains unchanged. Were I to catch the ball I would have gained times its original kinetic energy: Since we do not want that to be possible a space empire powered by throwing ping-pong balls sounds silly we must demand that energy is conserved.

One way of doing energy conservation is for the velocity to go down for my heavy ping-pong ball. This means that the new velocity will be. Inertia-increasing fields slow down objects, while inertia-decreasing fields speed them up. One could have a force-field made of super-high inertia that would slow down incoming projectiles. At first this seems pointless, since once they get through to the other side they speed up and will do the same damage. But we could of course put in a bunch of armour in this field, and have it resist the projectile.

The kinetic energy will be the same but it will be a lower velocity collision which means that the strength of the armour has a better chance of stopping it in fact, as we will see below, we can use superdense armour here too. Consider the difference between being shot with a rifle bullet or being slowly but strongly stabbed by it: Definitely a good thing for a space opera. A spacecraft that wants to get somewhere fast could just project a low field around itself and boost its speed by a huge factor.

But now an impacting meteorite will both have an high relative speed, and when it enters the field get that boosted by the same factor again: So boosting your speed with a factor of a will give you dust hitting you at speeds a million times higher. The armour above sounds like a good thing to have…. Note that any inertia-reducing technology is going to improve rockets even if there is no reactionless drive or other shenanigans: The rocket equation no longer bites: There is just a snag in this particular case: This kind of inertics does not make for a great cannon.

I can certainly make my projectile speed up a lot in the bore by lowering its inertia, but as soon as it leaves it will slow down. If we assume a given amount of force accelerating it along the length bore, it will pick up Joules of kinetic energy from the work the cannon does — independent of mass or inertia!

The difference may be power: Note that entering and leaving an inertics field will induce stresses. A metal rod entering an inertia-increasing field will have the part in the field moving more slowly, pushing back against the not slowed part yet another plus for the armour! When leaving the field the lighter part outside will pull away strongly. Another effect of shifting velocities is that gases behave differently. At first it looks like changing speeds would change temperature since we tend to think of the temperature of a gas as how fast the molecules are bouncing around , but actually the kinetic temperature of a gas depends on you guessed it the average kinetic energy.

However, the speed of sound should scale as: Air molecules inside an inertia-decreasing field would tend to leave more quickly than outside air would enter, producing a pressure difference. Changing the velocity so that energy is conserved unfortunately has a drawback: I throw a heavy object at my inertics machine at velocity , momentum and energy , it reduces is inertia and increases the speed to , keeps the kinetic energy at , and the momentum is now.

What if we assume the momentum change comes from the field or machine? When I hit the mass machine with an object it experiences a force enough to change its velocity by. When set to increase inertia it is pushed back a bit, potentially moving up to speed. When set to decrease inertia it is pushed forward, starting to move towards the direction the object impacted from.

In fact, it can get arbitrarily large velocities by reducing close to 0. Demanding momentum and energy conservation requires giving the above formula and , which insists that. Clearly we cannot have both. It is more obvious when you cheat about energy conservation. We could of course try to conserve 4-momentum , which would look like changing both energy and normal momentum at the same time. What about just retaining the normal momentum rather than the kinetic energy?

The new velocity would be , the new kinetic energy would be. Just like in the kinetic energy preserving case the object slows down or speeds up , but more strongly. And there is an energy debt of that needs to be fixed. One way of resolving energy conservation is to demand that the change in energy is supplied by the inertia-manipulation device. My ping-pong ball does not change momentum, but requires 0.

The device has to provide that. When the ball leaves the field there will be a surge of energy the device needs to absorb back. Some nice potential here for things blowing up in dramatic ways, a requirement for any self-respecting space opera. If I want to accelerate my spaceship in this setting, I would point my momentum vector towards the target, reduce my inertia a lot, and then have to provide a lot of kinetic energy from my inertics devices and power supply actually, store a lot — the energy is a surplus.

At first this sounds like it is just as bad as normal rocketry, but in fact it is awesome: I can convert my electricity directly into velocity without having to lug around a lot of reaction mass! I will even get it back when slowing down, a bit like electric brake regeneration systems.

The rocket equation does not apply beyond getting some initial momentum. In fact, the less velocity I have from the start, the better. One drawback is that now when I run into interplanetary dust it will drain my batteries as the inertics system needs to give it a lot of kinetic energy which will then go on harming me!

This requires a privileged reference frame, throwing out relativity theory. Oops but not unexpected. A rifle bullet has a few thousand Joules of energy, and if you can drain that it will now harmlessly bounce off your normal armour. Presumably shields will be depleted when the ship cannot dissipate or store the incoming kinetic energy fast enough, causing the inertics to overload and then leaving the ship unshielded.

This kind of inertics allows us to accelerate projectiles using the inertics technology, essentially feeding them as much kinetic energy as we want. If you first make your projectile super-heavy, accelerate it strongly, and then normalise the inertia it will now speed away with a huge velocity. A metal rod entering this kind of field will experience the same type of force as in the kinetic energy respecting model, but here the field generator will also be working on providing energy balance: Unfortunately it does not look like it could give a net energy gain by having matter flow through.

Note that this kind of device cannot be simply turned off like the previous one: The really tricky case is if you are in energy-debt: Now the object needs to get a bunch of kinetic energy from somewhere. Sudden absorption of nearby kinetic energy, freezing stuff nearby?

That would break thermodynamics I could set up a perpetual motion heat engine this way. Leaving the inertia-changed object with the changed inertia? That would mean there could be objects and particles with any effective mass — space might eventually be littered with atoms with altered inertia, becoming part of normal chemistry and physics. No such atoms have ever been found, but maybe that is because alien predecessor civilisations were careful with inertial pollution. Another approach is to say that we are manipulating spacetime so that inertial forces are cancelled by a suitable gravity force or, for purists, that the acceleration due to something gets cancelled by a counter-acceleration due to spacetime curvature that makes the object retain the same relative momentum.

The acceleration can be arbitrarily large but the crew will just experience freefall. Same thing for accelerating projectiles or making force-fields: Since momentum is conserved there will be recoil. The force-fields will however be wimpy: Given that normal interplanetary velocities are in tens of kilometres per second escape velocity of Earth, more or less the gravity field needs to be many, many Gs to work. Make a wheel turn because of an attracting and repulsing field, and the generator has to pay the work plus experience a torque.

Make a spacecraft go from point A to B, and it needs to pay the potential energy difference, momentum change, and at least temporarily the gain in kinetic energy. Note that energy and momentum in general relativity are only locally conserved ; at least this kind of drive can handwave some excuse for breaking local momentum conservation by positing that the momentum now resides in an extended gravity field and maybe gravitational waves. One problem is edge tidal effects.

Somewhere there is going to be a transition zone where there is a field gradient: Conversely, this makes for a nifty weapon ripping apart targets. One problem with gravity manipulation is that it normally has to occur through gravity, which is both very weak and only has positive charges. Electromagnetic technology works so well because we can play positive and negative charges against each other, getting strong effects without using very enormous numbers of electrons.

Gravity and gravitomagnetic effects normally only occurs due to large mass-energy densities and momenta. So for this to work there better be antigravitons, negative mass, or some other way of making gravity behave differently from vanilla relativity. Inertics can typically handwave something about the Higgs field at least. This leaves out the gravity part and just posits that you can place force vectors wherever you want.

A bit like Iain M. No real constraints because it is entirely made-up physics; it is not clear it respects any particular conservation laws. Here are some of the nontrivial effects of changing inertia of matter I will leave out gravity manipulation, which has more obvious effects. It is worth noting that this thought experiment does not affect light and other electromagnetic fields: The overall effect is that they will tend to push around charged objects in the field more or less.

A low-inertia electron subjected to a given electric field will accelerate more, a high-inertia electron less. This in turn changes the natural frequencies of many systems: A receiver inside the inertics field will experience outside signals as being stronger if the field decreases inertia or weaker if it increases it.

Reducing inertia also increases the Bohr magneton ,. This means that paramagnetic materials become more strongly affected by magnetic fields, and that ferromagnets are boosted. Conversely, higher inertia reduces magnetic effects. Changing inertia would likely change atomic spectra see below and hence optical properties of many compounds.

Many pigments gain their colour from absorption due to conjugated systems think of carotene or heme that act as antennas: Carotene with increased inertia will presumably shift its absorption spectra towards lower frequencies, becoming redder, while lowered inertia causes a green or blue shift.

An interesting effect is that the rhodopsin in the eye will also be affected and colour vision will experience the same shift objects will appear to change colour in regions with a different from the place where the observer is, but not inside their field.

Strong enough fields will cause shifts so that absorption and transmission outside the visual range will matter, e. However, the above claim that photons should not be affected by inertia manipulation may not have to hold true. Photons carry momentum, where k is the wave vector. This would complicate things a lot, so I will leave analysis to the interested reader.

But it would likely make inertics fields visible due to refractive effects. One area inertics would mess up is chemistry. Chemistry is basically all about the behaviour of the valence electrons of atoms. And this equation has a dependency on the mass of the electron and nucleus. If we look at hydrogen-like atoms , the main effect is that the energy levels become. In short, the inertial manipulation field scales the energy levels up and down proportionally.

One effect is that it becomes much easier to ionise low-inertia materials, and that materials that are normally held together by ionization bonds say NaCl salt may spontaneously decay when in high-inertia fields.

The Bohr radius scales as: This really messes with materials. Placed in a low-inertia field atoms expand, making objects such as metals inflate. In a high inertia-field, electrons keep closer to the nuclei and objects shrink. As distances change, the effects of electromagnetic forces also change: Not to mention melting points: This size change also affects the electron-electron interactions, which among other things shield the nucleus and reduce the effective nuclear charge.

The changed energy levels do not strongly affect the structure of the lightest atoms, so they will likely form the same kind of chemical bonds and have the same chemistry.

However, heavier atoms such as copper, chromium and palladium already have ordering rules that are slightly off because of the quirks of the energy levels. As the field deviates from 1 we should expect lighter and lighter atoms to get alternative filling patterns and this means they will get different chemistry.

Given that copper and chromium are essential for some enzymes, this does not bode well — if copper no longer works in cytochrome oxidase, the respiratory chain will lethally crash. If we allow permanently inertia-altered particles chemistry can get extremely weird. An inertia-changed electron would orbit in a different way than a normal one, giving the atom it resided in entirely different chemical properties.

Each changed electron could have its own individual inertia. Presumably such particles would randomise chemistry where they resided, causing all sorts of odd reactions and compounds not normally seen. The overall effect would likely be pretty toxic, since it would on average tend to catalyze metastable high-energy, low-entropy structures in biochemistry to fall down to lower energy, higher entropy states.

Lowering inertia in many ways looks like heating up things: Given that much of biochemistry is tremendously temperature dependent, this suggests that even slight changes of to 0. Inside a lowered inertia field matter responds more strongly to forces, and this means that fluids flow faster for the same pressure difference.

Buoyancy cases stronger convection. For a given velocity, the inertial forces are reduced compared to the viscosity, lowering the Reynolds number and making flows more laminar.

Conversely, enhanced inertia fluids are hard to get to move but at a given speed they will be more turbulent. I have ignored the equivalence of inertial and gravitational mass.

One way for me to get away with it is to claim that they are still equivalent, since everything occurs within some local region where my inertics field is acting: The equivalence principle still holds. What if there is no equivalence principle? I could make 1 kg object and a 1 gram object fall at different accelerations. If I had a massless spring between them it would be extended, and I would gain energy. Beside the work done by gravity to bring down the objects which I could collect and use to put them back where they started I would now have extra energy — aha, another perpetual motion machine!

So we better stick to the equivalence principle. Given that boosting inertia makes matter both tend to shrink to denser states and have more gravitational force, an important worldbuilding issue is how far I will let this process go. Using it to help fission or fusion seems fine. Allowing it to squeeze matter into degenerate states or neutronium might be more world-changing.

And easy making of black holes is likely incompatible with the survival of civilisation. If you model it using spherical Bondi accretion you need an Earth-mass black hole to make the sun implode within a year or so, and a kg asteroid mass black hole to implode the Earth.

And the extreme luminosity slows things a lot more. A better way may be to use an evaporating black hole to irradiate the solar system instead, or blow up something sending big fragments.

Another fun use of inertics is of course to mess up stars directly. Conversely, reducing inertia may open a channel where it is easier for plasma from the interior to ascend especially since it would be lighter. Even if one cannot turn this into a black hole or trigger surface fusion, it might enable directed flares as the plasma drags electromagnetic field lines with it. The probe was invisible on the monitor, but its effects were obvious: Suddenly there was a tiny glint in the middle and a shock-wave: Mad science clearly has no good concept of proper workmanship.

This is mad engineering: Without the probe sucking it together the dense plasma was now wildly expanding. As it expanded it cooled. Beyond a certain point it became too cold to remain plasma: Suddenly neutral the matter no longer constrained the tortured magnetic field lines and they snapped together at the speed of light.

In both cases where actual inertia is changed inertics fields appear pretty lethal. A brief brush with a weak field will likely just be incapacitating, but prolonged exposure is definitely going to kill.

And extreme fields are going to do very nasty stuff to most normal materials — making them expand or contract, melt, change chemical structure and whatnot. Hence spacecraft, cannons and other devices using inertics need to be designed to handle these effects.

One might imagine placing the crew compartment in a counter-inertics field keeping while the bulk of the spacecraft is surrounded by other fields. A failure of this counter-inertics field does not just instantly turn the crew into tuna paste, but into blue toxic tuna paste. Gravity manipulation is cleaner, but this is not necessarily a plus from the cool fiction perspective: The atomic rocket page makes a big deal out of how reactionless propulsion makes space opera destroying weapons of mass destruction if every tramp freighter can be turned into a relativistic missile, how long is the Imperial Capital going to last?

This is a smaller problem here: Gravity propulsion still enables some nasty relativistic weaponry, and if you spend time adding kinetic energy to your inertia-reduced missile it can become pretty nasty. But even if the reactionless aspect does not trivially produce WMDs inertia manipulation will produce a fair number of other risky possibilities.

However, given that even a normal space freighter is a hypervelocity missile, the problem lies more in how to conceptualise a civilisation that regularly handles high-energy objects in the vicinity of centres of civilisation. Not discussed here are issues of how big the fields can be made. Could we reduce the inertia of an asteroid or planet, sending it careening around? That has some big effects on the setting.

Similarly, how small can we make the inertics: Can they be counteracted by another field? Inertia-changing devices are really tricky to get to work consistently; most space opera SF using them just conveniently ignores the mess — just like how FTL gives rise to time travel or that talking droids ought to transform the global economy totally.

But it is fun to think through the awkward aspects, since some of them make the world-building more exciting. The proper adjustments being made, Leonora Cnristine raised her acceleration a few days later. It would make no particular difference to the cosmic duration of her passage. In either case, she ran at the heels of light. Extending her scoopfields more widely, intensifying the thermonuclear fireball that trailed her trailing Bussard engine, the ship shifted over to three gravities.

This would have added almost thirty meters per second per second to a low velocity. To her present speed, it added tiny increments which grew constantly tinier. That was in outside measurement. Inboard, she drove ahead at three gee; and that measurement was equally real. Her human payload could not have taken it and lived long.

The stress on heart, lungs, and especially on body fluid balance would have been too great. Drugs might have helped.

Fortunately, there was a better way. The forces that pushed her nearer and nearer to ultimate c were not merely enormous. Of necessity, they were precise. They were, indeed, so precise that their interaction with the outside universe — matter and its own force fields — could be held to a nearly constant resultant in spite of changes in those exterior conditions. Likewise, the driving energies could safely be coupled to similar, much weaker fields when the latter were established within the hull.

This linkage could then operate on the asymmetries of atoms and molecules to produce an acceleration uniform with that of the inside generator itself. In practice, though, the effect was left incomplete. One gravity was uncompensated. Hence weight inboard remained at a steady Earth-surface value, no matter how high the rate at which the ship gained speed. Such cushioning was only achievable at relativistic velocities. At an ordinary pace, their tau large, atoms were insufficiently massive, too skittish to get a good grip on.

As they approached c , they grew heavier — not to themselves, but to everything outside their vessel — until the interplay of fields between cargo and cosmos could establish a stable configuration. Three gravities was not the limit. With scoopfields fully extended, and in regions where matter occurred more densely than hereabouts, such as a nebula, she could have gone considerably higher.

In this particular crossing, given the tenuousness of the local hydrogen, any possible gain in time was not enough — since the formula involves a hyperbolic function — to be worth reducing her safety margin.

Thus, tau was no static multiplying factor. Its work on mass, space, and time could be observed as a fundamental thing, creating a forever new relationship between men and the universe through which they fared. And it's so blasted simple, I get mad at myself for not thinking of it first! Hyperdrive is based on the idea that the thrust of the rockets acts in the exact same way on all the atoms inside the spaceship.

So you can have as much thrust as you want and no one will feel a thing. Even if the ship were to accelerate a million times faster than the gravity of the Earth you wouldn't feel a thing, because all the atoms inside would be pushed along at the same time!

Also, he realized that time was precious, and resolved to drive the Violet so unmercifully that she would overtake that fleeing torpedo, now many hours upon its way—the torpedo bearing news, for the first time in Fenachrone history, of the overwhelming defeat and capture of one of its mighty engines of interstellar war. In a very short time, considering the complexity of the undertaking, the conversion of the power-plant was done and the repellers, already supposed the ultimate in protection, were reenforced by a ten-thousand-pound mass of activated copper, effective for untold millions of miles.

Their monstrous pilot then set the bar and advanced both levers of the dual power control out to the extreme limit of their travel. There was no sense of motion or of acceleration, since the new system of propulsion acted upon every molecule of matter within the radius of activity of the bar, which had been set to include the entire hull. The passengers felt only the utter lack of all weight and the other peculiar sensations with which they were already familiar, as each had had previous experience of free motion in space.

But in spite of the lack of apparent motion, the Violet was now leaping through the unfathomable depths of interstellar space with the unthinkable acceleration of five times the velocity of light! The ability to put crew members to sleep for months at a time would be an awfully convenient thing to have.

Such crew members would use air and food at a much reduced rate and would not be prey to interplanetary cabin fever or space cafard. The Year We Make Contact. This kept them oxygenated, fed, and sedated into a deep sleep for the entire trip. In William Tedford's Silent Galaxy , interplanetary fighter pilots would sometimes find themselves out of fuel and on trajectories that would take years to return to a spot where they could be rescued.

They would use hibernation to stretch their consumables and to sleep the time away. Poul Anderson noted that there is probably a limit to how long a human will remain viable in cryogenic suspension in other words they have a shelf-life.

Naturally occuring radioactive atoms in the body will cause damage. In a non-suspended person such damage is repaired, but in a suspended person it just accumulates. He's talking about this damage happening over suspensions lasting several hundred years, during interstellar trips.

This may require one to periodically thaw out crew members and keep them awake for long enough to heal the damage before re-freezing them. Hibernation and suspension is often encountered in SF novels where large numbers of people have to be shipped, e. Some passenger liners will have accomodations of First-class, Second-class, and Freeze-class instead of Steerage.

There is often a chance of mortality associated with hibernation and suspension. In some of the crasser passenger ships there will sometimes be a betting pool, placing bets on the number of freeze-class passengers who don't make it.

He took out the little syringe, already loaded with the carefully prepared solution. Narcosamine had been discovered during research into animal hibernation: All it caused was a great slowing-down of the vital processes, though metabolism still continued at a reduced level. It was as if one had banked up the fires of life, so that they smoldered underground. But when, after weeks or months, the effect of the drug wore off, they would burst out again and the sleeper would revive.

Narcosamine was perfectly safe. Nature had used it for a million years to protect many of her children from the foodless winter. You can read their report here. Having the astronauts pass the journey in cold-sleep has many benefits, but the most remarkable one is the huge payload mass savings. And the Hab Module mass savings can be used to increase payload, increase delta V, expand launch windows and mission options, increase radiation shielding, reduce the number of heavy-lift launches, reduce number of on-orbit assembly operations, increase subsystem mass margins to improve redundancy, reliability, and safety.

The report focuses on Therapeutic Hypothermia temperature-based hibernation as the method of choice to induce cold-sleep. Mostly because it has actually been used medically to treat ailments such as cardiac arrest, ischemic stroke, traumatic brain injury, etc.

The report assumes that therapeutic hypothermia can be advanced to the point where the astronaut's metabolism can be reduced from normal to somewhere between moderate and significant reduction but not to actual total metabolic stoppage , for periods of many months. Black bears and some rodents can do it, so we know it is possible.

The nutrient fluid is a mixture containing lipids, amino acids, dextrose, electrolytes, vitamins, and trace elements; all the essential nutrients needed for a human body to function. There are some maladies that afflict people who spend prolonged periods in microgravity , exposed to space radiation, and exposed to radiation from nuclear propulsion.

These could be characteristic signs of space traveling old-timers. Being weak with brittle bones isn't lethal but presumably the astronauts at some point want to return home to Terra and still be able to walk.

Science fiction literature is full of mandatory exercise to combat this, with "exercise credits" awarded for time spent under acceleration and in centrifuges. Some astronauts or colonists of low gravity planets and moons might require man-amplifier prosthetics in order to walk under a full Terran gravity.

Naturally such space osteoporosis can lead to kidney stones, the agony of which is the closest a male will ever come to the sensation of giving birth. Space osteoporosis can also be combated by exercise. Astronaut's eyes are especially vulnerable. Recently NASA made the horrible discovery that exposure to microgravity for six months or longer causes permanent damage to the eyes , similar to idiopathic intercranial hypertension.

There is some evidence that this is due to enzyme polymorphisms that increases astronaut vulnerability to bodily fluid shift in free fall. Astronauts may appear to be older than they actually are, because microgravity accelerates aging. And a science fictional favorite is the microgravity adapted astronaut who when on Terra has a tendency to let go of glasses of water in mid air, expecting them to float.

The two main effects of radiation on an astronaut are [1] cancer and [2] death by radiation sickness. You are unlikely to encounter an old astronaut suffering from [2] unless you like to visit graveyards. But the probability is high that most old astronauts will have undergone treatment for cancer at one time or another. NASA tries to avoid this by ensuring that there are no old astronauts. NASA has strict career limits on astronaut radiation exposure.

Secondary effects of radiation are skin ulceration and blindness due to cataracts scarring. High-mass, high-charged HZE cosmic rays might accelerate the development of Alzheimer's disease.

Radiation also lowers the immune system chromosomal aberrations in lymphocytes , but it can recover. Atomic rocketeers on board an atomic rocket will also without fail have a package of potassium iodide tablets on their persons at all times.

If the reactor core is breached, the mildly radioactive fuel and the intensely radioactive fission fragments will be released into the atmosphere. While none of the fission fragment elements are particularly healthy, Iodine is particularly nasty.

This is because ones thyroid gland does its level best to soak up iodine, radioactive or not. Thyroid cancer or a hoarse voice from thyroid surgery might be common among atomic rocket old-timers. The tablets prevent this by filling up the thyroid first, before the Iodine arrives. Create a membership in seconds to see more in Corona. Ive gots lots of time on my more Looking for friends to hang more Sexy, Fun couple looking for more Allow me to more We are interested in Meeting more I am a woman from Santa more My my wildest fantasy begins more

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