December 25 2017, 02:36

I was surprised to find in a cafe Stereo 8 cartridge tapes and a player for them. This format died out about forty years ago, giving way to cassette tapes, but here it was, in perfectly working use. There was no rewind feature on such devices, so I had to wait for it to play through a sequence of up to four songs (that’s how many typically fit on one stereo track), lasting about 20 minutes.

December 19 2017, 17:37

A fantastic lecture by Walter Lewin dedicated to the launch of his new book. It will be interesting for everyone who is keen on physics (the lecture is about very simple things, but presented in a very cool way – with cool experiments and so on). If you need a translation into Russian, here it is: https://www.youtube.com/watch?v=iLhl0wMY_uI

https://www.youtube.com/watch?v=4a0FbQdH3dY