I was thinking of ways to make the human body stronger, so I was wondering why not lift weights with a higher level of gravity, hence my question. I'd like to know if there's some clothes, jewelry, or even a way to make a chamber/room to increase the gravity around my body.
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3$\begingroup$ You could build a space station in orbit that it rotating extremely quickly. That or you could have a very rapidly rising elevator. Either of these would simulate strong gravity. $\endgroup$– AngelPrayCommented Jul 24, 2017 at 0:45
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8$\begingroup$ You can also just wear weighted clothing and heavy jewelry. Athletes frequently do this already for strength building. $\endgroup$– ohwillekeCommented Jul 24, 2017 at 1:22
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2$\begingroup$ I got lost. Do you want to wear heavy things, or to have artificial gravity? Or what? $\endgroup$– MołotCommented Jul 24, 2017 at 7:16
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3$\begingroup$ Just use heavier weights, you'll get the same results. $\endgroup$– KeelhaulCommented Jul 24, 2017 at 8:58
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$\begingroup$ @Keelhaul: Yeah, or go backpacking for a week or two with a 50+ lb pack. $\endgroup$– jamesqfCommented Jul 25, 2017 at 5:53
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4 Answers
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Pilots and astronauts train in simulated high gravity by getting spun around at the end of a long rotor.
http://www.wingsorrotors.com/FeedItem/The-Centrifuge-High-G-Training-and-G-Lock/
Many science fictions describe space habitats (the one depicted in the movie 2001 comes to mind) which simulate gravity by rotating, thus causing the occupants to feel a force pressing them against the outer circumference of the space habitat. This force can stand in for gravity.
I would like to point out that it is not hard to use gravity to increase your workout intensity by finding weights that experience a stronger gravitational attraction by virtue of their higher mass.
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The physicist Robert L Forward proposed the concept of ultradense matter as a technique for generating localized gravitational fields. Refer to his book Future Magic (1988) where this is discussed.
Assuming it is possible to manufacture sufficient qualities of ultradense matter, then a chamber or room could be made where the gravity inside was higher than the gravity outside. For example, a layer of ultradense matter could be placed beneath the chamber where its gravitation would be added to the Earth's gravitation. The result would be higher gravity above the chamber's floor.
It should be noted that below the ultradense layer gravity would be reduced. The layer's gravitation pulling everything below it upwards while Earth's gravitation downwards. Depending on the local strength of the ultradense layer's gravity, gravity could be reduced to zero or it might be strong enough to enable people to walk on the ceiling.
It would be physically impossible to wear garments or jewellery made of ultradense matter. Even the smallest piece would weigh many tons. The stuff would be a health hazard. The ultradense layer would need to be extremely strongly supported. The slightest accident would see it sinking deep into the Earth, with a good chance of descending to the Earth's core.
answered Jul 24, 2017 at 8:28
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$\begingroup$ I would think that the gravity gradient is a bit steep to be actually useful. $\endgroup$ Commented Jul 24, 2017 at 11:33
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$\begingroup$ @DoomedMind There I was worried about the stability and hazards associated with ultradense matter. From memory Bob Forward had considered this and didn't think it was a problem. But you have raised an interesting issue. $\endgroup$ Commented Jul 25, 2017 at 1:03
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Currently science knows two ways to generate gravity: mass and acceleration.
Mass is the "standard" way to generate gravity, it's cheap and reliable, but difficult to manipulate.
You would need a mass comparable with Earth mass to have a sizable effect and that is a bit... cumbersome.
Forget about ultradense matter. Gravity gradient would be such that, even if the mean effect is what desired, your feet will instantly melt and your head would hardly feel any change (I mean: until the lower parts are squashed by their own weight and the head falls to the level of the feet, a few tenth of seconds after).
You can have an interesting effect if You have a space elevator available. On the way up (assuming constant speed) weight would gradually decrease from "earth-normal" to zero at geostationary. (for the purists: this is actually combined effect of reduced Earth pull and increased centrifugal force).
OTOH acceleration is quite easy to use.
It's very easy to increase weight with the use of centrifuge (as explained in another answer), but it's also possible to decrease it for short periods of time using abaric trajectory. Passengers of a superfast train would also feel lighter for the whole duration of the trip, but such an effect would need really fast trains (a sizeable fraction of escape velocity, i.e: ~11km/s).
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Build an O'Neil cylindrical station or even a simple ring station and spin it for what ever gravitational force you wish to simulate. With the spinning cylinder, outward becomes down. The faster you spin it the higher the perceived gravity on the inner surface of the cylinder.
You can even have a range of "gravities" just by inhabiting levels nearer or farther from the axis of rotation. This lets you vary the gravity for your subjects without expending the energy of changing the spin rate of the station.
