The big book of unusual projects. Make cool stuff!

Turn on the soldering iron, grab a drill and get to work! From tiny musical instrument theremin to "beer barrel" made of a large watermelon; from automatic feeders for cats to the glowing pad computer mouse in the Big book of small inventions" will be original and fun projects for every taste. Anyone can make anything if you want. Teaches American magazine "Popular science", which has been published for 140 years! Show off stunning pyrotechnic effect, eccentric robot made by their own hands, causing a gasp of admiration flying objects or found a way to improve the quality of beer. Equip your home with a laser alarm system, improvised device for low-temperature processing of products, the display still shows in full size anything. Want to hide the flash drive in the old tape? To make a homemade stylus for touch screen? Adapt lens type fisheye for your camera? With this book, everything is possible!