Ridiculously powerful handheld cannon blows up on the street

Never get in a street fight in Poland because you never know what kind of garage made weapons they'll bring out against. Like this makeshift cannon that can bring the boom like no other. The noise alone is intimidating. Eastern Europe seems like such a fun place for crazy people to do crazy stuff in the middle of the… » 4/22/14 1:20am 4/22/14 1:20am

Tennis Ball Cannon is a Dog's Best Robotic Friend

Now, a beer launching fridge I can understand, but a tennis ball cannon? I find it amusing when someone spends a tremendous amount of time and effort building something that can automate basic functions—like throwing a tennis ball to a wiener dog. But the results speak for themselves. It is an inspiration for lazy… » 3/17/08 10:00pm 3/17/08 10:00pm

Gasoline-Powered 25-inch Desk Cannon Shows Your Cube Mates Who's Boss

USB Missiles are fun (I shot Dvorak in the chest with one once, it did not induce a heart attack as I had hoped), but actual cannons are even more fun. This 25-inch field cannon is the closest you'll get to having a Civil War cannon in your office—unless you're the undersecretary of Civil War reenactments for the… » 2/21/08 7:20pm 2/21/08 7:20pm

Ping Pong Ball Fired From Cannon Destroys Can, Self

In these shots, a ping-pong ball fired at an unnamed "near-sonic" speed destroys a metal can that, you'll note, is first dented just by the cushion of air coming from the barrel. Kinda makes you wonder how much devastation the cannon could have gotten done without any projectile at all. If this rings of deja-vu, it's… » 2/07/08 10:00am 2/07/08 10:00am

Tennis Ball Howitzer Vs. Things You Find at a Grocery Store

Leave it to the geniuses at the NIT Physics Lab in Japan to build a cannon that fires ping-pong tennis balls at near-sonic 700 Km/h, annihilating cabbages, Coke bottles and what look like sundry colorfully packaged snack-food items. There's no dramatic tension here, just the satisfaction of seeing the strong… » 2/06/08 8:40pm 2/06/08 8:40pm