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| | NOT YOUR GRANDPA'S SHOOTIN' IRON: Rail Guns |
 | | Rail gun projectiles are smaller and easier to store: a standard AGS magazine holds 1,500 rounds; a rail gun magazine could hold 10,000 rounds in the same amount of space. |
 | | Despite numerous advancements over the last millennium, all guns, from the blunderbuss to the M-16, have operated on the "expanding gas" principle, where an expanding ball of superheated gas is used to force a projectile through a tube. |
 | | If EM guns are going to serve as practical battlefield weapons, a means of cooling them (cryogenically or otherwise) or of improving the super-conductivity of the rails must be found. |
| www.military.com /soldiertech/0,14632,Soldiertech_RailGuns,,00.html (1603 words) |
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