Humans in 10x Gravity

posted on November 24th, 2011, 2:23 pm

How long could a Human survive on a planet with 10x Earths gravity? Not an augmented Human or someone human-like who evolved there, just a regular Earth-born Human.

[the keeper]

posted on November 24th, 2011, 2:25 pm

Last edited by the keeper on November 24th, 2011, 2:33 pm, edited 1 time in total.

i might be wrong but i believe its seconds max, fighter pilots don't do 10 g's i believe and they have those special suits, but in a crash a max of 10 g's would be survivable (were talking about miliseconds of 10 g

i apear to have corrected myself wrongly by misreading wiki as this case would be vertical g forces the folowing aplies:

from wiki:
"A typical person can handle about 5 g (49 m/s²) before losing consciousness ("G-LOC"), but through the combination of special g-suits and efforts to strain muscles—both of which act to force blood back into the brain—modern pilots can typically handle a sustained 9 g (88 m/s²) (see High-G training)"

posted on November 24th, 2011, 2:31 pm

If he were to stand upright, I'd say he would last a minute or so before passing out.
You see, the heart would not be strong enough to pump blood to his brain - thats where I think the humans' biggest problem would lay.

posted on November 24th, 2011, 2:32 pm

yea as far as i know you can only survive about 3g on longer periods of time. just try to avoid to tumble!

posted on November 24th, 2011, 2:35 pm

if you lay down on the surface you can extent how long you can survive a certain amount of g's:P but then you still have the problem of eating and stuff i guess

posted on November 24th, 2011, 2:47 pm

if you lay down on the surface you can extent how long you can survive a certain amount of g's:P but then you still have the problem of eating and stuff i guess

For a time I guess... even so the blood would just gather in the lower part of your body and would start to accumulate in the veins, quite quickly leading to blood clots and eventually heart attacks and other nasty stuff. The point is, one would still die very fast.

Of course Im just guessing all of this based on my knowledge of human physiology... 

posted on November 24th, 2011, 3:24 pm

I think if it were a gradual process of introducing humans to more gravity eg, raise by 1g each year the body would eventually adapt and new borns would have the ability without any problem, many people underestimate the ability humans have at adapting to various environments. But i think 10g might be way too much without a long long time of human evolution and a gradual introduction of higher gravity.

If speaking of just beaming to a planet with 10g of gravity then it would be the same as someone choking your heck and cutting off blood and oxygen from your brain so unconscious in maybe 10 seconds and dead in mins.

posted on November 24th, 2011, 3:34 pm

yes adaption is l;ikely posible, maybe to 10g's but i doubt that as you see with people carying to big loads get hernia (not completely sure thats the english term aswell) but for newborns and posibly the reproduction system its not that simple as newborns don't have time enough to adept to big diferences so that would require genetic evolution over many generations where many baby's die and the reproductive system probably relies on close to 1 g gravity at our current ëvolution

posted on November 24th, 2011, 3:44 pm

yes adaption is l;ikely posible, maybe to 10g's but i doubt that as you see with people carying to big loads get hernia (not completely sure thats the english term aswell) but for newborns and posibly the reproduction system its not that simple as newborns don't have time enough to adept to big diferences so that would require genetic evolution over many generations where many baby's die and the reproductive system probably relies on close to 1 g gravity at our current ëvolution

What i mean is as you adapt to slightly increased gravity that ability should be passed to your offspring and as its increased with each generation humans should be able to adapt to the increased gravity.

posted on November 24th, 2011, 4:04 pm

it only passes to the next generation if the ones that don't adapt die or if you organize who procreates with who

posted on November 24th, 2011, 5:25 pm

you are aware that an average human would weight around 600kg on a 10g planet? I'm all for adaption, but i fear thats slightly too much at least a pregnant woman should die from the extra weight, so we can cross-out the evolution factor

posted on November 24th, 2011, 5:28 pm

Yea, let's not even begin to talk about cell rupturing, sedimentation of organelles, and the strain on any type of tube that's supposed to carry something 

Even hypogravity is quite bad for basic biology...

posted on November 24th, 2011, 9:17 pm

10g would be extremely difficult. Imagine yourself weighing 800kg (which is 10x the average weight of a man i believe). 

It would shove your spine into your brain and the ridiculously dense atmosphere of such a planet would splat your blood out like squeezing a sponge. 

Under such extreme conditions even water would be solid because the massive gravity presses the water molecules so tight together that they act as a solid. 

If by some miracle you would find yourself being a few seconds alive and next to a canyon you would see down that canyon the oxygen in a semi-fluid fog-like state oozing throughout the canyon itself.

Practically something that has 10g's is pretty much considered a gas giant because the intense gravity can attract and hold huge amounts of atmosphere, however most gas giants are hydrogen perdominant, what I said above is under assumption that the planet would have breathable gases.

[the keeper]

posted on November 24th, 2011, 9:23 pm

Last edited by the keeper on November 24th, 2011, 9:27 pm, edited 1 time in total.

now your adding the problem of atmosphere which you presume is abundent and therefor thick, if it would be only 1/10 of earths in thicknes (did no calculation and is probably wrong but sounds a bit right anyway:p) then the presure of that air isn't taht much higher as on earth since there is less gas packing the gas beneath together

i think you should think of in principle a artificialy simulated 10g envirement with normal air density to answer the original question and not add more variabels which seem likely to be present aswell but aren't neceserely there

but thats just my opinion

posted on November 24th, 2011, 9:38 pm

No planet of such extreme conditions has been observed without atmosphere before. Atmosphere is a natural byproduct of a planet's creations cycle, most of it is created through the planets early centuries where the planets own temperature and gravity pushes gasses up to the surface where they are held back from escaping with the force of gravity, you can be sure the bigger the gravity, the exponentially bigger the atmo.

Unless its dismo cold, in that case it just solidifies.

Did you know that even the sun has an atmosphere? It may be superheated plasma, but its gassy nevertheless!