Symmetry (Page 2)

Goran: Thanks for the homework. The study was specific to simulated hypergravity of 1.64G. But it does say this:

"Impairments in motor functions thus occur in both hypo- and hypergravity, a finding that is not surprising in light of the known influence of Earth’s gravity on the formation and development of motor functions (Laputin and Kadenyuk, 1999)."

When I looked at the reference I got this:

"Examinations of the Wistar-SPF rats flown on board the biosatellites Cosmos-782, 936 and 1129 demonstrated significant changes in their postural, motor and equilibrium reactions. The use of artificial gravity inflight, produced a beneficial effect on the health state, motor activity and simple reflex acts of the animals but worsened their movement coordination and equilibrium function."

So, if artificial gravity used in hypo gravity experiment didn't produce equilibrium, perhaps hyper gravity experiment is flawed and centrifugal force does not trick organisms into feeling true gravity (gravitons and not inertia). Besides when exposed to centrifugal force, everyone has experienced loss of motor function, dizziness, or worse. There is no way of telling if exposure to true 1.64 times normal gravity would result in same.

The fact that equilibrium functions worsened in hypo gravity experiment when artificial gravity was applied makes me even more skeptical of validity of hyper gravity experiment. Centrifuge is obviously very damaging to equilibrium, even more so then hypo gravity since it worsened it.

Back to topic, it's interesting that our equilibrium is tied to being born on the planet. I'd like to see a study on changes after a few generations of critters born in zero gravity.

Fred: Don't the astronauts suffer a large bone density loss/ calcium loss, or similar?
If this is so, combined with the afore-mentioned effects, would it not be reasonable to expect that any multi-generational experiment would end in some sort of boneless jelly-creature, if they were even able to breed, that is?

Entropy: Not if we find a way to simulate gravity on a spaceship.

And yea, I agree with you Goron. It wouldn't take long to get a few generations of mice born in space. The problem is you can't see the full range of effects zero gravity has on an organism without bringing it back to Earth. That would be a pretty expensive experiment.

Too bed we don't have a test center on the moon. I don't understand why we haven't set anything up like that yet.

Fred: MONEY!

jjasmine: mhm - I think I will stick to Earth - we females are prone to getting lack of bone density anyway - maybe not the symmetrical way - hehe - but as Goran have mentioned - nothing like that in quantum mechanics (whose/which basic particles we, women, sometimes feel like)

RocktheFlaminCowboy: If you have any trouble knowing your left from right then hold both hands up and extend the thumbs horizontally. Which ever one makes an "L" is your left. LOL

jim-jim!: i think the difference between left & right, if symmetrical, is the middle!... or maybe that's the opposite....

Geoff: Two wrongs don't make a right,
But three rights make a left.

RocktheFlaminCowboy: Threee rights??? Doesn't that make a "U" turn.

yeahcomeon: want to have some fun...check out this cool site...

http://www.scienceu.com/geometry/handson/kali/kali.htm

yeahcomeon: it's science U KALI