I really like the awesome occupational safety equipment they use. Are those tank tops and shorts fire-proof?

Another example of this is fine sand. If you impact a pile of sand hard enough and with a small enough cross-sectional area, it behaves like a liquid. It “spalashes” away from the impact like water. But the behavior only lasts a fraction of a second. Once the pressure is released the individual grains of sand act like…

Wow. That is amazing actually. How simple is that? Geez...you can do this with nothing but 19th century technology. Why did it take us until now to figure this out? I suspect it’s already been figured out by someone and just wasn’t interesting enough.

I just want to run up that dune and slide down. How cool will it be for the first person who can really do that? Something about a sand dune that really makes Mars seem real.

Oh crap...now I can’t unsee it either. :-o