In this case I am pretty sure that the color of the flame is due to black body radiation. The blue flame is hot, so it glows blue. Once the hot gas passes the steel, it transfers a lot of it's heat to the steel so it is cooler and glows orange.
The flame only started glowing orange once the...
Some Irish people studied the strength of back skin of some french people. They said the UTS of back skin is average 21.5 MPa +- 8 MPa which is around 3000 psi. Thickness is 2.56 mm or .1 inches, so to cut a 1 inch square
= 4" *.1" * 3000 = 1200 lbs
I guess that means super man's skin is...
The Osprey has a lot of computers on board. This is how it can fly at all. Each of the propellers have cyclic control, like a helicopter. A sensor suite detects motions of the aircraft and then corrects that motion with adjustments to the propellers. The fact that it has pendulum stability (the...