5 Eylül 2011 Pazartesi

Backyard Ballistics: Build Potato Cannons. Paper Match Rockets. Cincinnati Fire Kites. Tennis Ball Mortars. And More Dynamite Devices - William Gurstelle

backyard ballistics: build potato cannons. paper match rockets. cincinnati fire kites. tennis ball mortars. and more dynamite devices - william gurstelle
backyard ballistics: build potato cannons. paper match rockets. cincinnati fire kites. tennis ball mortars. and more dynamite devices - william gurstelle

"13 projects engineered to be safe yet exciting and able to be built with household and hardware-store supplies" -- St. Paul Pioneer Press

"Fun and thrilling" -- Journal of Chemical Education

"Offers a safe, cheap, and legal, labor-intensive and intellectually challenging to the 'oops I blew off my fingers' debacle." -- Burt Constable, Arlington Heights Daily Herald

"To inspire kids to spend more time exploring science" -- The Plain Dealer

"Would-be rocketeers, take note: Engineer William Gurstelle has written a book for you." -- Chicago Tribune

...shows the safe way to amaze and annoy your neighbors with amateur science projects. -- The Daily Oklahoman

If you'd like to launch a potato in a blazing fireball of combusting hairspray, this is your best source. -- Time Out New York

Your inner boy will get a bang out of these devices to build and shoot in your own back yard. -- DallasNews.com

DOWNLOAD BACKYARD BALLISTICS: BUILD POTATO CANNONS. PAPER MATCH ROCKETS. CINCINNATI FIRE KITES. TENNIS BALL MORTARS. AND MORE DYNAMITE DEVICES - WILLIAM GURSTELLE

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