+- Punaweb Forum (http://punaweb.org/forum)
+-- Forum: Punaweb Forums (http://punaweb.org/forum/forumdisplay.php?fid=3)
+--- Forum: Punatalk (http://punaweb.org/forum/forumdisplay.php?fid=10)
+--- Thread: Mars experiment (/showthread.php?tid=16349)
RE: Mars experiment - pahoated - 08-31-2015
They are testing outdoor suits as one of the experiments. Mars has air pressure, so the suit doesn't have to be pressurized. Oxygen and temperature control have to be provided, so they have been staying with the old fully enclosed spacesuit form but that might be changing. It will be possible on Mars to disconnect your glove and pick up a rock directly with your hand, as long as it isn't too hot or too cold.
http://spectrum.ieee.org/img/06sspacesuitf13_300px-1412187036255.jpg
Again, the issue of desecration is moot here. The royals did not consider large parts of Mauna Loa as being anything but Aokuewa. One point of this simulation is the outpost is simulated to be dropped in, with no permanent infrastructure preparation (for the purposes of the simulation, the structures had to have adequate foundation prepared). When the simulation is over, there will be very little left to indicate it was ever there.
"Aloha also means goodbye. Aloha!"
RE: Mars experiment - PunaMauka2 - 08-31-2015
As long as they continue to allow scuba gear up on the slopes and summit, I'm good.
RE: Mars experiment - MattKarma - 08-31-2015
Climate at the south pole might be a bit closer to Mars. (except more comfy maybe?)
https://en.wikipedia.org/wiki/Amundsen%E2%80%93Scott_South_Pole_Station
... and there's a telescope there too!
RE: Mars experiment - beepbeep - 08-31-2015
Aloha opihikao, Aries woman ! Hope all is well with you and your ohana.
Pam in CA
RE: Mars experiment - TomK - 08-31-2015
"They are testing outdoor suits as one of the experiments. Mars has air pressure, so the suit doesn't have to be pressurized."
Mars does indeed have air pressure, about 170 times lower than the Earth's unfortunately. You'd feel rather uncomfortable without a pressurized suit there, that is before you died.
RE: Mars experiment - beepbeep - 08-31-2015
It's been so hot that the South Pole sounds lovely.
Pam in CA
RE: Mars experiment - MattKarma - 08-31-2015
From WikiPedia:
quote:12.4 millibar is approx 1.24% sea level pressure, at 95,000 feet the air pressure on earth is 14.19 mbar
Hellas Planitia is thought to have been formed during the Late Heavy Bombardment period of the Solar System, approximately 4.1 to 3.8 billion years ago, when a large asteroid hit the surface.[7]
The altitude difference between the rim and the bottom is 9,000 m (30,000 ft). The depth of the crater (7,152 m (23,465 ft)[1] ( 7,000 m (23,000 ft)) below the standard topographic datum of Mars) explains the atmospheric pressure at the bottom: 12.4 mbar (0.012 bar) during the northern summer.
http://www.hsdengineering.com/images/ALT_PRESS_TABLE1.pdf
so yeah it would be like being at ~97,000 feet without a pressure suit.
RE: Mars experiment - TomK - 08-31-2015
Yes, Matt, and that's at the bottom of a massive depression on the surface of Mars, so the pressure is higher than at the regular surface of Mars. At the mean surface level on Mars, the pressure is roughly equivalent to being nearly 120,000 feet above the Earth's surface.
RE: Mars experiment - pahoated - 08-31-2015
The necessary pressure doesn't come from filling the whole suit with atmospheric air/oxygen. This makes the joints stiff. The prototype is still a pressure suit, only using mimetic polyalloy mechanical pressure. The SR71 was flying routinely at 80,000 feet unclassified, who knows what the classified ceiling was. The cabin is pressurized but the pilot is in a pressure suit to try to survive an ejection. The pressure suits fighter pilots have use air bladders. The point is you don't want to be using your oxygen supply to be providing sea level air pressure to your whole body, you only need it for your head. The torso can be exposed to low pressure if the head is getting oxygen at Earth sea level pressure. These are all preliminary designs, therefore the need for testing, duh. The fact that Mars does have some atmospheric pressure makes the Earth standard environmental suit more flexible and a lot less complex.
"Aloha also means goodbye. Aloha!"
RE: Mars experiment - TomK - 08-31-2015
"The prototype is still a pressure suit, only using mimetic polyalloy mechanical pressure."
Watching Terminator movies tonight, Ted?