Sunday, 15 May 2016

Gravity and Free-Fall

Had a discussion with physicist and author Marcus Chown yesterday on Twitter about gravity, and how bodies in free-fall don't experience it. We were trying to explain this to somebody, and were struggling, partly due to the character limit. I went looking for a video demonstrating it, but struggled to find one, despite the fact that I know Neil deGrasse Tyson used a similar example in a scicafe lecture some years ago, so I made one.

The original was a bit rough, but I re-shot it today, and made some alterations to the flow of it. to make it an easier watch.

This is one of the beautifully elegant physics experiments that anybody can do at home, pretty much cost-free.

Apologies to Matt Damon for the use of fresh water. It was only a bit.

Will expand this post at some point for a deeper explanation with some equations, but wanted to share.