Slashdot Mirror
Potato Bazookas
Zog The Undeniable writes "The latest craze in Germany is "Kartoffelkanone" or potato bazookas. These use hairspray ignited by a spark to fire potatoes at colossal speeds. The authorities are not amused." Everyone needs a hobby I guess.
Bet you can't shoot just one!
g
Potato's as weapons. You could supply an army and feed them at the same time. Kill two birds with one stone.
About 20 years ago, as a kid in Denver, we used to shoot tennis balls out of guns made from soda cans and fuled with ligher fluid. At least we did until I had the great idea to soak the ball with lighter fluid before we fired it. The first few times were great, but soon one of our flaming balls set the neighbor's yard on fire.
"We have nothing in common, your attitude annoys me, and your political views are appalling."
Old, but very sweet!
GotSpud?
Tony's page
Spudweizer
Simple Spudgun
My mom would never let me build one when I lived at home, so now's my chance. AND, I'll be prosecuted as an adult, and possibly an 'American Terrorist'
Pity the poor Germans. Once they led the world in starch based weapons technology, now they have to play a distant game of catch up.
The Iraqis don't stand a chance against our mighty potato cannon, not to mention our highly intelligent french fry cluster bombs!
It just so happens I had this same hobby a few years back. Except we used propane as the fuel and golf balls as the projectiles. Tiger Woods beware! It was truly amazing to see a golf ball launched several hundred yards, almost out of sight. For those interested, www.spudtech.com has a load of information on these fun toys.
Scott
My friends and I built a potato canon and regularly fired it over the skies over Tucson. It was fun to a potato hang in the air for up to 10 seconds at a time, and a bit of basic math estimated it to travel over 1/3 a mile. Beware though that the potato emerges at about 100 miles per hour (but slows down alomost immediately due to air resistance).
We stopped fiting it after we stuck a 1/4 inch thick board of plywood about 3 feet in front of the canon and fired away.
Damned if that potato didn't punch a perfect 4 inch hole through that board. As the potato emerged on the far side though, it almost completely stripped off the last ply layer from the board.
We gained a new respect for tuber-based weaponry that day....
Dr Fish
My favorite part of the article:
German police fear that the youths will turn to more lethal ammunition than potatoes. Tests have shown that such a bazooka firing an empty film canister filled with sand and the cardboard centres of toilet rolls filled with cement could penetrate brickwork.
I can just picture these "experts" in a lab doing "testing".
It probably went something like "Whoa, that was way cool, lets see what else we can use. Hey, if we use something really heavy it'll be just like those cannons on junkyard wars!"
Those guys must have a cool job.
"...At the end of the day"..."when everyone goes home, you're stuck with yourself." RIP Layne Staley
I love that... "hey kids, those potato gun things are WAY too dangerous for you! Don't try it, but THESE things are WAY more destructive!"
Ya gotta wonder.
$0.02 (CDN)
Hairspray is for wimps...real men use compressed air. Compressed air is much more powerful, you don't have the legal ramifications of using an explosive, and it's cheaper than hairspray. It takes a little more work to get it air-tight, and you have to buy a thicker PVC pipe, but the results are worth the extra effort.
Public use of any portable music system is a virtually guaranteed indicator of sociopathic tendencies. -- Zoso
It's supposed to be completely automatic, but actually you have to press this button.
I went back to my parents house to build one (and test fire, since the apartment complex I was living in presented an environment a little too target-rich). After the PVC cement dried and I completed some test firing with a rag stuffed into the barrel, I managed to put a potato into the air, across the street, over the house across the street and smack into a humongous water tower that has loomed over my childhood memories for 20 years.
Talk about a thrill. It was early evening, and a little dark, so you could see the long tongue of orange flaming Aqua-net.
First a click (of the grill igniter in the trigger)...then a sort of "thomp" sound...then a long silence...then a huge, resounding GOOOOOOOOOOOOOOOOOOOOONG sound.
It was awesome. A childhood dream come true.
I need to build another.
We have done this for physics often... no explosives or flammables involved. (I know... where's the fun then :} )
:}
:}
All you need is a length of pipe that just barely fits a pingpong (table tennis whatever) ball through it. Fit a connector into one end of it that can hook to a vacuum pump.
Ok.. now here is the operation.
*WARNING do not have anything in line with EITHER end of this device!!! It is VERY unlikely but either end can give way and it fire either direction!*
Place the pingpong ball in the pipe. Place a single piece of plastic packing tape over each end. (Clear or brown... not filament!)
Use your pump and lower the pressure as far as you can. (You will have to expirement to make sure you can get it that low without imploding the tape on the ends)
When ready to fire.. put end with fitting slightly lower. Wait for pingpong ball to settle at that end of the tube. Aim. Using something sharp or pointed pierce the tape on that end of the pipe.
Bye-bye pingpong ball
Basically the inrush of air propels the ball through the tube and straight through the tape on the other end. We have clocked these pingpong balls in excess of 150mph
Please only do this under carefully controlled circumstances... It makes a great science expirement and is relatively safe. But as always be careful, wear protection and DON'T BE STUPID.
BTW You can pick up used vacuum pumps for cheap on Ebay... cheaper than 20 or 30 cans of hairspray so...
Telcos have alot of dark fibre in the States. Most people assume that's optical fibre...but it's actually moral fibre.
A couple dozen kids playing with the things is simply annoying. When you get thousands, the statistics start to catch up with you.
When they start being 'in', the nature of the problem also shifts. You start to leave the domain of 'geeks playing with tech' and get into the realm of 'jocks playing with weapons'. It's a completly different mindset -- one with far less interest in (or even knowledge of) safety.issues.
A geek firing a cement-filled cannister at a brick wall is one thing. A jock firing a cement-filled cannister at his favorite geek target is another. The first death from one of these things is not going to be pretty.
OS Software is like love: The best way to make it grow is to give it away.
Another option is harnessing years of aerodynamics research and firing golf balls.
For added fun, take your cannon to the course!
-S
Here's a letter from the ATF regarding the legality of the "spud gun". Note the date - September 12, 1995.
Definitely old news...
Life is the leading cause of death in America.
Now if only RMS had seen us launching little penguins... he would have made us call it a GNU/Gun.
Lasers Controlled Games!
The issue here is not that potatoe guns exist.
/.?
Dan Quayle reads
--
As a matter of fact, I am a lawyer. But I play an actor on TV.
Not one eye was put out that summer.
Three, then? Four? Five?
...
Yup...and they had waterproof fuses. They used to sell them as normal fireworks. Last box of them I saw was back in HS in about 1980. We got a box of them, took them to our neighborhood pool during the winter, tied them to rocks, lit them and dropped them in...like depth chargers. Found out that summer we had cracked the bottom of the pool. But, the best thing to do with them in school, was to find someone who was sitting on the can in the bathroom on one of the lower floors...run upstairs, light an M-80, and flush it...thing would blow up, and shoot water out of the john's down below...hehehe...talk about a wet suprise..hehehe. Had to quit that when the pipes at Central High suddenly got blow out a few times....
Light travels faster than sound. This is why some people appear bright until you hear them speak.........
. . .the Germans out of socialism and restore their war loving pride.
Look out, France.