I can’t decide which sounds worse; staying in bed slightly tilted backwards for six months, or staying in bed slightly tilted backwards while spinning, for six months. I have nothing against spinning provided there is no reference frame. But if there wasno reference frame, I doubt there would be need to lay down…
I should have mentioned but they only spun for 30 minutes at a time (depending on the study). I’d hope they at least gave them a blind fold so they didn’t have to stare at the ceiling
In a sense, yes! I ended up cutting a section where I pointed out that traveling in straight lines in an accelerated environment IS the basis for modern relativistic gravity. Maybe I’ll post it as a brief part 2
Well, according to the latest theory, our head experiences time differently than our feet when we stand up. So maybe the gravity difference won't be that much different 🤔
Pertaining to artificial gravity in a gravity well, long term residency on Mars will have deleterious effects on the human body. Could we create Earth gravity on Mars? A MagLev track 447 meters in diameter with pressurized cars traveling twice around the track every minute would provide earth gravity for Martian explorers on the floor of the cars. This track could be built below ground to shield humans from solar radiation, and two cars diametrically opposed to each other could be joined by a spoke tube, which would provide entry at the center of the diameter. The two cars might eventually be extended around the track, so that they form a torus. Motive power would be from solar panels, driving the torus, and internal power would be by a third ring of magnets, and coils under the "floor" of the torus between the two rail sets of magnets, producing electricity similar to a brush-less generator. This Mars 1g habitat might best be located at one of Mars' poles, so that the Sun would always fall on the solar cells. The actual inside floor would be inclined from the vertical at a compromise between the 1g centrifugal force, and Mars' .38G, so that "down" would be perpendicular to the floor, but inclined to the horizon. There is no reason the central area can't be filled in on either side of the spoke tube with concentric levels. G forces would steadily decrease as one traveled from the rim to the center, with floor tilt progressing to near horizontal at the center. With no front and no rear of the torus, air resistance would only be that of skin friction, and with the resulting whole of the structure being essentially a disc, with no cutting edge, the same applies. If more 1G space is needed, the Torus could be stretched vertically into the ground. The resulting cylinder could have any depth, as long as the lower end also was suspended by magLev tracks for stabilization. The central levels could also be stretched , creating nested O'Neal cylinders of decreasing Gs. To prevent the majority of the air from being slung to the rim by centrifugal forces air locks should be installed on each concentric level, to keep proper air pressure in each level, prevent CO2 from collecting at the rim level, , and to act as a guard against wholesale depressurization should one level suffer a catastrophic loss of pressure. Thoughts?
What do you think? I am writing a science fiction graphic novel. In my book, my character travels through time using a centrifuge (I call it an accliimator). My idea was based on the Greenland Shark. At cold temperatures and high pressures, the cells of the shark slow down. Therefore, the shark ages less. In my book, my character lives in her centrifuge for 200 years and does not age. The air pressure in the centrifuge is increased to keep the cell walls from rupturing, and the extra artificial gravity helps her body to slow down. Also, the temperature is decreased ever slightly. She eventually falls asleep. She slowly acclimates to the new environment and causes her not to age fast. Time dilates for her, and she can travel to the future.
I would guess lower is fine but we haven’t had a chance to test that properly. It will be very exciting to see what happens to astronauts during long term stays on the Moon. We can extrapolate that to plan for Mars as well!
@@ConHathy i remember reading in a sci fi book about ships gradually lowering artificial gravity from 1g to 1/3g during the transfer to mars, to ease the change in gs. Opinions?
"Your head can be at less than one gee and your feet can be at more" -- and here on Earth, they *are*. (If exactly one gee exists at some height in between)
Nice explanation! :) Doing artificial gravity in space has always seemed easier than dealing with GCR and other radiation! A mix of centrifuges and tethers have it covered... Much lower mass than radiation solutions!
@@ConHathy Yes! It's nice to see some serious research into GCR happening, hopefully the moonakins in distant luna orbit have some good news for us.. :)
Im sorry this isnt really a scientific question and more of a physical object question. How can you make a perfectly airtight seal between an object that is rotating and an object that isn't? I'm like feeling really dumb for asking this but I figured if I'm tryna learn all this complicated stuff I should learn about the simple XD
You never make anything perfect. Fortunately, perfection is unnecessary. If the rotating seal leaks half the air in the air chamber every three years, you bring in that much replacement air. Another option: don't have a rotating seal. Closely enclosing the spin axis, have a large, simple cylindrical drum, open to space. The living quarters are 3600 m from the spin axis but this cylinder's inner surface is at only 18 m from it, so the strength of the spin gravity there is a 200th of a gee. The friction that would have existed in the rotating sliding seal now exists between this cylindrical surface and the feet of spacecraft plonking themselves down on it. As seen from someone waiting to get on one of those spacecraft, it slides a short distance, probably less than a metre, after setting down. It slides to a halt, feeling increasing gravity as it does so, but as above said, it doesn't increase very much. The end state is the spacecraft sitting parked in the 0.005-gee gravity. The departing spacer came up from the one-gee residential decks by elevator. The elevator had a nonrotating seal with that far-down pressure vessel. It detached and carried its own small bubble of pressure up. It climbed the tether. Someone arriving, it will carry back down. The tether extends through the very slowly rotating drum, piercing it at two opposite points. In one direction it extends 3.6 kilometres down to the full-*g* decks, and in the other, it extends kilometres to some sort of counterweight. Maybe 10 km if it's a low-mass, high-acceleration counterweight. That far down, no-one goes, but there might be a robotic freight elevator to take inanimate payloads down there and drop them away at the high tangential speed that exists down there. Although simple, the landing drum does have accelerometers at the two tether penetrations, and wheels, usually braked, with which it grips the tether there. When the accelerometers agree, it knows it's accurately centred on the spin axis. When they disagree, it turns the wheels until they agree. That's all the trouble you ever have with balance. Two unequal masses on the ends of a rotating tether are always in balance; there are no instabilities. But if something massive comes in and goes down to the residential deck, the spin axis moves closer to that deck, and the central landing drum must follow. No rotating seals, dimensions easily within the limits of strength of materials, side benefits. That's the way a designer would do it.
"Coriolis effect isn't noticeable" brother he is curving left and falling to the right every team tf u mean. If you were there your balance would be all kinds of fucked
