Ok, I this just came up and I had to write something about it (even though I have tons of other things to do). Here is a video of a guy jumping 35 feet into a pool of water only 1 foot deep.

How does this work? Read More...

Tags: acceleration, video, gravity, energy

I am really not sure why I started to look at this, but here is a video of the famous “jump salute” from Apollo 16 astronaut John Young.

It seems there is some discussion about this video in terms of fake or not fake moon landings. I don’t want to get involved in that whole mess, so I will just see if I can measure the gravitational field on the moon. Read More...

Tags: video, acceleration, gravity