Big Book of Secrets for Boys

Do you want to be known among friends with a real expert in the most important "boyish" issues? Then you need to comprehend some secrets, without which to surprise them, alas, will not work.

How to be able to stand up for yourself and at the same time remain gallant and educated? How does a lie detector work? How to read an invisible message? How to charge the battery and restore CD and DVD-disks? What is azimuth and how to calculate it? How to make a photobot? How to make a compass, phone or watch with your own hands? And finally, what is the secret of the famous deductive method? "How difficult!" - You exclaim you. And you will be wrong! Thanks to this perfectly illustrated book, you will cope with any difficulties. She, having discovered all the “boyish” secrets, will help you master many useful skills.