Paul D. flies a Hydra!
by Luigi Anzivino
Remember that training we did with Paul D. where we made wonderful magical wands that could levitate bits of plastic and twine? Best training ever, in my opinion. Well, now there’s a video up on YouTube showing the whole world how amazing science can be!
I remember Paul saying that the electrostatic force repelling the hydra is stronger than the gravitational pull of the whole earth, and in fact that gravity is considered a “weak” force. If I remember correctly, he mentioned that electricity is 40,000 times stronger than gravity. Anything else anyone remembers?
By the way, the Exploratorium channel on YouTube often posts little interesting snippets of video, which are meant to be a sort of appetizer to get people to watch the more substantial webcasts on the Exploratorium’s website, so check them out!