Talk:Stonehenge (Infinity)/@comment-24.253.196.28-20160730165503/@comment-202.67.40.206-20160730214852

From Wikipedia page of Railgun : "Although these speeds are possible, the heat generated from the propulsion of the object is enough to erode the rails rapidly. Under high-use conditions, current railguns would require frequent replacement of the rails, or to use a heat-resistant material that would be conductive enough to produce the same effect."

The concept of railgun is launching projectiles at high speed on electrified rails. Speed creates drag against the rails, constant use will overheat the rail, much like when you rub two objects together.