Gurstelle, William. <br/><br/>
Adventures from the technology underground :  catapults, pulsejets, rail guns, flamethrowers, tesla coils, air cannons and the garage warriors who love them / 
William Gurstelle. 
 - New York :  Three Rivers Press,  [2007], c2006. 
 - 223 p. :  ill. ;  21 cm. 
<br/><br/>Includes bibliographical references (p. [219]) and index. 
<br/><br/><label>ISBN: </label>9780307351258 (pbk.)  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Machine design.
<br/><br/><label>Dewey Class. No.: </label>600 GUR