Some of the photos they had of the early 6 megajoule prototypes were heating the air behind it to a plasma. Take this image into consideration that there was no actual explosive used to launch this. (then think about how much more powerful this new one is)..
posted on 02/28/2012 9:12:08 PM PST
Eh, a lot of that plasma in that is actually a sign that in that old test the railgun wasn’t quite perfected yet; it comes from rail erosion, arc transition between the barrel and armature, and severe arcing at the muzzle, all of which damge the gun.
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