The big JUMP!
<Michel Fournier is planning to jump from a balloon at 40,000 m altitude and sky dive for, then open a parachute at an altitude of 1,000 m. The jump would last 6 minutes 25 seconds and he'd reach the speed of sound only 30 seconds after leaving the balloon. Quite risky! He's got 200 parameters to be studying, with a team following his jump.
This could lead to interesting data for astronauts, returning back from space.
Raoul