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iseason
23rd March 2012 - 09:18 AM
Hi all

Just musing about gravity and the variation we would feel in gravity, it seems to me would be relative.

for instance, if we are moving freely, then we would experience the difference in the moons gravity. But if we were immersed in water, the medium would also undergo the same variation, so we should react to full immersion in water exactly as if we were on earth.

Of course I am ignoring the environmental impossibilities of plonking a swimming pool on the surface of the moon. So the question is , 'given a lower gravitational environment, would conditions of full immersion be the same as on earth ' ..."relatively".

Cheers
Iseason.
Robittybob1
23rd March 2012 - 09:46 AM
QUOTE (iseason+Mar 23 2012, 09:18 AM)
Hi all

Just musing about gravity and the variation we would feel in gravity, it seems to me would be relative.

for instance, if we are moving freely, then we would experience the difference in the moons gravity. But if we were immersed in water, the medium would also undergo the same variation, so we should react to full immersion in water exactly as if we were on earth.

Of course I am ignoring the environmental impossibilities of plonking a swimming pool on the surface of the moon. So the question is , 'given a lower gravitational environment, would conditions of full immersion be the same as on earth ' ..."relatively".

Cheers
Iseason.

What do you mean by relative?

Are you using relative as "In proportion to the strength of gravity on the moon"?

The pressure would be lower but it would give you the same floatation.
Guest
23rd March 2012 - 10:15 AM
QUOTE (Robittybob1+Mar 23 2012, 09:46 AM)
What do you mean by relative?

Are you using relative as "In proportion to the strength of gravity on the moon"?

The pressure would be lower but it would give you the same floatation.

Hi Robittybob1

Both the water and I would be experience exactly the same gravitational varience.

So I would not be able to notice the difference between swimming underwater on the moon and on earth. That is a relative experience.

Cheers
Iseason
Robittybob1
23rd March 2012 - 11:07 AM
QUOTE (Guest+Mar 23 2012, 10:15 AM)
Hi Robittybob1

Both the water and I would be experience exactly the same gravitational varience.

So I would not be able to notice the difference between swimming underwater on the moon and on earth. That is a relative experience.

Cheers
Iseason

No you're wrong. You can hold your breath longer underwater on the Moon.
Use this formula developed by Neil Armstrong when they put foot on the Moon.

Tm = Ge/Gm*Te*Om/Oe

T =time under water
G = Relative gravity
O = Oxygen ratio
e for Earth
m for Moon
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