Lightning at 7000 Frames Per Second

Very nice. The next time a confused person tries to tell you that lighting goes from the ground up, show them this. What they mean is that the current flows that direction, but that is fairly meaningless.

Published on May 24, 2016
Professor Ningyu Liu at the Geospace Physics Laboratory caught a beautiful lightning show from a recent storm. It’s recorded at 7000 frames per second and the playback speed is 700 frames per second.

Happy Halloween

A Bit Early.
The Royal Institution is a 200 year old charity based in London dedicated to connecting people with the world of science through events, education, and the CHRISTMAS LECTURES. “A scene of explosive Halloween mayhem as one Jack-o’Lantern spews molten iron into another filled with gun cotton, all in the name of science.”

Seeing Radiation

We now certain kinds of radiation are dangerous, but it is a danger we can’t see. Unless, that is, we use a device called a cloud chamber. The radiation causes trails in the super cooled alcohol vapor inside the chamber and we can see the emissions of radiation from a sample. Below is a sample of Uranium (Pitchblende).

Uranium in a Cloud Chamber

To see how this was done, the following video shows the whole process.

via: IFLScience

Thanks Matt!