Exploding components http://youtu.be/JCPXckfT-6g
A real geek stuff : Afroman blows up resistors, electrolytic capacitors and transistors. Don't forget to thumbs up! The music is the final part of Tchaikovsky's 1812 overture.
DIY: Geiger Counter Kit
Commercial Geiger counters can cost hundreds of dollars. With this Geiger Counter Kit you can build your own at a fraction of the price! This easy to solder kit can be built in an evening...