Backyard Ballistics

My kids are still young, but I found this book on a recommendation.  It looks great.

Backyard Ballistics @ Amazon

Who wouldn't want to launch a fiery potato 250 yards?!?  I mean, really.

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

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

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

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

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

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

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

Journal of Chemical Education
"Fun and thrilling"