Half a croissant, on a plate, with a sign in front of it saying '50c'
h a l f b a k e r y
non-lame halfbakery tagline

idea: add, search, annotate, link, view, overview, recent, by name, random

meta: news, help, about, links, report a problem

account: browse anonymously, or get an account and write.

user:
pass:
register,


               

Please log in.
Before you can vote, you need to register. Please log in or create an account.

Spark rifle

For when you want sparks to hit something.
  (+8)(+8)
(+8)
  [vote for,
against]

At its crudest, this is a sparkcone shoved into a rifle barrel. But BUNGCO was dissatisfied. We are sportsmen and sportswomen here, and we wanted rifles that will shoot one spark at a time. What is a spark but a fragment of incadescent metal, anyway? We had plenty of those. This is not a tracer bullet, but a pyrotechnic sparkler-type of spark.

The spark rifle would be used to shoot condoms inflated with helium, to prevent their escape into the stratosphere. At the BUNGCO annual gala, a bubble machine akin to that used by Lawrence Welk will blow oxyacetylene bubbles, which will then be summarily dealt with by a corps of sharpshooters using spark rifles.

Also available in Roman Candle.

bungston, Jul 07 2008

[link]






       Can I get an invite? (+)
normzone, Jul 07 2008
  

       Can we get a belt fed version ? [+]
8th of 7, Jul 07 2008
  

       How does this work? Do you think you could magnetically accelerate a piece of burning magnesium? Air rifle thermite pellets witha little oil to diesel and ignite?
MisterQED, Jul 07 2008
  

       I am not sure how those spark cones work. Those sparks shoot pretty high but I am not sure what propels them. I could not find that on the web. Roman candles would be easier - just ignite that little chunk of stuff and fire it with a CO2 charge like a pellet gun.   

       I think if you used a railgun to accelerate a steel splinter it would effectively become a spark due to ohmic heating.
bungston, Jul 07 2008
  

       That's what I'd like to see, a tiny tiny railgun or something that could use the heat to expand gas to push a burning cinder down a barrel.   

       I think the easiest is an airgun that has a spark gap at a point in the barrel to ignite a burning pellet. I want something that will spark at will.
MisterQED, Jul 08 2008
  

       [QED] will magnesium grains work in a railgun ?
FlyingToaster, Jul 08 2008
  

       /I think if you used a railgun to accelerate a steel splinter it would effectively become a spark due to ohmic heating./   

       Glowing yellow steel is not magnetic. Above some temperature that is probably influenced by carbon content, say 750°C for argument's sake, it is in the austenite phase, rather than ferrite. Austenite is not magnetic.
Texticle, Jul 08 2008
  
      
[annotate]
  


 

back: main index

business  computer  culture  fashion  food  halfbakery  home  other  product  public  science  sport  vehicle