Power Kite Forum

Wind on Mars

buggeyed - 10-8-2012 at 08:52 AM

I wonder how much wind there is on Mars?May be time for a spacetrip.
http://panoramas.dk/mars/greeley-haven.html

BeamerBob - 10-8-2012 at 09:26 AM

It would be different there with the air being 70% as dense as earth's. 1/3 the gravity would make lift an issue though.

Cheddarhead - 10-8-2012 at 12:20 PM

Wow, look at all that space. Who's up for a trip? Makes Ivanpah look small in comparison. Just think of the air and float you could get from one jump:wee:

RedSky - 10-8-2012 at 07:44 PM

I'm up for it. When we going ? I'm thinking quad bikes

BeamerBob - 10-8-2012 at 09:01 PM

oxygen for the motor too! 95% CO2 there.

Scudley - 11-8-2012 at 06:58 AM

Quote:
Originally posted by BeamerBob
It would be different there with the air being 70% as dense as earth's. 1/3 the gravity would make lift an issue though.


Atmospheric pressure on at its highest is 0.2PSI, or about 1 % of earths. On the brightside, the wind speeds can reach 400 mph. The bad side, without a pressure suit, your blood boils at less body temperature.

bigkid - 11-8-2012 at 09:30 AM

Quote:
Originally posted by Scudley

Atmospheric pressure on at its highest is 0.2PSI, or about 1 % of earths. On the brightside, the wind speeds can reach 400 mph. The bad side, without a pressure suit, your blood boils at less body temperature.

Why sweat the little stuff, just think, your quiver would fit in your pocket.:lol:

BeamerBob - 11-8-2012 at 10:10 AM

Quote:
Originally posted by Scudley
Quote:
Originally posted by BeamerBob
It would be different there with the air being 70% as dense as earth's. 1/3 the gravity would make lift an issue though.


Atmospheric pressure on at its highest is 0.2PSI, or about 1 % of earths. On the brightside, the wind speeds can reach 400 mph. The bad side, without a pressure suit, your blood boils at less body temperature.


So help me reconcile 70% density of the atmosphere but 1% atmospheric pressure? I like to understand things and that went beyond my grasp.

Scudley - 11-8-2012 at 03:22 PM

Quote:
Originally posted by BeamerBob
So help me reconcile 70% density of the atmosphere but 1% atmospheric pressure? I like to understand things and that went beyond my grasp.


The actual number for pressure is 0.007 Atm, I rounded up. I am going to suggest the article you were quoting was written by someone with very poor math and/or physics skills. Where did you get your number?
Earth atmosphere is about 70 times denser than Mars's.
S

BeamerBob - 11-8-2012 at 03:48 PM

not sure. did a quick search. probably qwikipedia. So 70 times thinner and 400 mph winds. What size kites do we need?

buggeyed - 11-8-2012 at 07:05 PM

No worries about getting your kite stuck in a tree.

Scudley - 11-8-2012 at 07:51 PM

By thinner do you mean less viscous or less dense?

A 400 mph wind on mars would have about the same kinetic energy as about an 90 mph wind on earth.

RedSky - 11-8-2012 at 08:17 PM

Wouldn't it be weird if Curiosity came across an empty can of Coke.

BeamerBob - 11-8-2012 at 11:18 PM

Quote:
Originally posted by Scudley
By thinner do you mean less viscous or less dense?

A 400 mph wind on mars would have about the same kinetic energy as about an 90 mph wind on earth.


I guess density is what makes up the concentration of air molecules that power a kite.

bigkid - 11-8-2012 at 11:57 PM

didnt I say your quiver would fit in your pocket? Maybe not.:rolleyes: