Knowledge
2 total works
First the ancient Greeks hid messages under their hair. Then Mary Queen of Scots completely lost her head because of a cracked toe. Now computers create codes no human can crack. "Totally Cracking Codes" is the ultimate guide to unlocking the secret language of spies. Aspiring code-breakers can discover how to decipher dot and dashes, fathom flags, suss a simple cipher and much more!
This is a guide to the sensational secrets of special effects - from multi million-dollar computer magic in blockbuster movies to spectacular effects you can use in your own school play.