132 reputation
6
bio website n/a
location United States
age 31
visits member for 3 years, 2 months
seen Apr 6 at 4:59

I never read these profiles, so I never write much. But thanks for caring enough to check it out.


Apr
6
awarded  Critic
Apr
6
comment Why is jumping into water from high altitude fatal?
I think we're under-emphasizing how much kinetic energy that is. Let's try to put this in perspective: 787,500 J is enough energy to lift an F-150 pickup truck to the top of a 10 story building. That also means if you drop that pickup off a 10 story building into the water, the pickup would dissipate the same amount of energy as the human. And @user3058846 that means the impulse of force would be the same in those two situations. (And I'm thinking the pickup would hit the water pretty hard.)
Jun
4
awarded  Supporter
Jun
4
awarded  Scholar
Jun
4
accepted How is antenna gain correlated to beam width?
Jun
2
awarded  Student
Jun
1
asked How is antenna gain correlated to beam width?
May
5
awarded  Teacher
May
5
answered Can you use a laser to measure the speed of light with a rotating mirror?
May
5
awarded  Autobiographer