Here is the second in the series of educational videos that started with “Shine a light”. This time it’s about Lasers and how we actually organize the photons to be emitted in lock step to produce the focus beam of light.
YouTube – Laser
An animation in a Attenborough documentary. Nothing ground breaking here, just nicer than most animations along similar lines.
Make: Online : Tree of life – amazing animation
Found this interesting animation explaining the lifecycle of a star like our sun. It’s a more detailed explanation of Hydrogen is converted to Helium which then converts to carbon as the star dies over time.
Low Mass Stars
Make has some information on some German researchers who have made steel velcro. I wonder if I can get some for shoe laces.
Make: Online : Steel ‘Velcro’
The Wildlife Conservation Society has an awesome Google maps overlay of Manhattan in 1609. It’s interesting in a number of respects. You can find out what flora and fauna were around in the area at the time. Also it seems to cover the lower parts of Manhattan which I thought were mostly [...]
Sure they’re cute now. Sure it can help old people. You just keep that in mind when you’re being dominated by our robotic teddy bear overlords.
Make: Online : Teddy bear robotic nurse