Spy Science (häftad, eng)

Sh-h-h-h-h-h!!

Top Secret...

Crack the code of superspy science fun!

Make your own spy sunglasses
* Write messages with invisible ink
* Hook up a secret alarm, and much more!

Discover how spies use science to keep--or uncover--top secrets.Learn how to go under cover, master Morse code, and even builddevices to see and hear through walls! These and dozens of otherfun-filled activities give you an inside look at the science behindspy gadgets and tricks of the tradeAll the activities arecompletely safe and can be done with everyday stuff from around thehouse.

Format	Häftad
Omfång	128 sidor
Språk	Engelska
Förlag	John Wiley & Sons Inc
Utgivningsdatum	1996-10-01
ISBN	9780471146209