The third teaser features a space shuttle... This is rather worrisome for a movie set in the near future. The fictional Ares should be lunched on a SLS on steroids...
I think dust storms on Mars are not exactly movie material, realistic ones that is.
Quote from: QuantumG on 05/26/2015 01:37 amExternal temperature is irrelevant. You can die of heatstroke in the Arctic. Your body produces heat that has to be removed or it will build up and kill you.So then what does a Martian spacesuit have to be more concerned with to maintain a comfortable internal temperature for the wearer? Does it have to avoid heat loss more, or does it have to remove heat more?(I'm assuming normal daytime conditions at some non-polar landing site.)
External temperature is irrelevant. You can die of heatstroke in the Arctic. Your body produces heat that has to be removed or it will build up and kill you.
Quote from: QuantumG on 05/26/2015 04:57 amIt's all about heat removal. Even in space, where the temperature in shadow is -270 C, your concern is to get rid of waste heat. The difficulty is keeping the wearer comfortable - too hot and they'll perspire, which wastes water, too cold and they'll burn calories to warm up, making the heat rejection problem even harder.Mars isn't space, it has ground, it has a thin atmosphere and even wind. You mean that if you're walking on the surface and get hit by one of those mini dust-devils, your temperature is not going to drop from that? You mean if you're walking on the polar ice caps, you and the dry ice beneath your feet are going to be too warm?
It's all about heat removal. Even in space, where the temperature in shadow is -270 C, your concern is to get rid of waste heat. The difficulty is keeping the wearer comfortable - too hot and they'll perspire, which wastes water, too cold and they'll burn calories to warm up, making the heat rejection problem even harder.
<Fake Trailers>
This showed up in my Twitter feed, looks legit.
Red the wikipedia page on the novel, looks like (a bit) Gravity, set on Mars.
Quote from: Archibald on 05/26/2015 04:18 pmRed the wikipedia page on the novel, looks like (a bit) Gravity, set on Mars.That's not an entirely fair description of The Martian. It's more like Robinson Crusoe on Mars. Or Cast Away on Mars, but instead of Tom Hanks you have a sardonic botanist/astronaut.
First look at the film adaption of the book. I really must get around to reading the book. http://www.people.com/article/matt-damon-martian-ridley-scott-first-look
Read the book, was disappointed by plot holes and technical errors. I'm currently working my way through this year's Hugo packet, and thinking of rereading Ringworld.
Hmm. Can cracked mud like that even exist on mars today? Sure it certainly has been there at some points in the past, but in the time since, wouldn't those fragile shapes have been buried or destroyed?
I increasingly find all the good stuff is in the trailer and the movie itself is a waste of my time.