FrenchKheldar
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 Dec 4 comment fitting van der waals law on real data You have to go to the fluid properties section. Dec 4 answered What alternative shapes may a rocket heading into orbit have? Nov 24 answered Velocity vs Time Bounce Nov 24 comment Mass diffusion: is $D_{AB} \neq D_{BA}$ at high pressures? If so, why? Nicely put ! That's what I think too, let's see what other answers we get. Nov 24 asked Mass diffusion: is $D_{AB} \neq D_{BA}$ at high pressures? If so, why? Nov 18 awarded Scholar Nov 18 accepted Gas kinetic representation of trans-critical conditions Nov 12 comment What velocity must an aircraft achieve for its shock wave to transform to plasma? Here it is, sort of. I can't link to the chart I was thinking about from Anderson, High Temperature Gas Dynamics, but this should do Check Fig. 1.1, they put the ionization limit at around 10 km/s which seems higher than what the Space Shuttle reaches, and yet I'm pretty sure there is a plasma cloud around the SS. I will research this further... Nov 12 comment What velocity must an aircraft achieve for its shock wave to transform to plasma? Given that the Space Shuttle create a plasma during reentry, I doubt your calculation of 4E7 mph was correct... I'm looking for a chart that shows Cp and $\gamma$ of air vs Mach number and altitude but I can't find it... Nov 12 answered How cold should it be outside for a hot coffee mug to break? Nov 11 awarded Analytical Nov 11 awarded Autobiographer Nov 11 awarded Altruist Nov 10 comment How do black holes accrete mass? I thought your question implied that it would take an infinite amount of time for the man to fall in the black hole. Which is not true. Also, I always thought the size of the black hole was smaller or equal to the Schwarzschild radius, which is the event horizon. Nov 10 revised How do black holes accrete mass? added 1 characters in body Nov 10 answered How do black holes accrete mass? Nov 10 answered After what speed air friction starts to heat up an object? Nov 9 awarded Quorum Nov 9 comment Gas kinetic representation of trans-critical conditions Nov 9 comment Gas kinetic representation of trans-critical conditions And then what I want to understand better is what happens at a molecular level for the macroscopic surface tension to disappear? Is this because the rate/energy of collisions becomes large enough?