How to build your own Sputnik

It seems incredible that the technology that went into building the first successful satellite 50 years ago can now be found lying around the average house. You could even build one yourself, as Paul Rubens explains below. Fancy having a go?

ewilhelm (author)  chooseausername10 years ago
I'm behind the times, apparently!
Kiteman ewilhelm10 years ago
For once :-)