Particle Problems and How to Solve Them
The Naked Scientists Podcast
00:00
Railhead Treatment Trains
We fire it on to the top of the way track in a streamer of air, and which as actually going at supersonic speed. So you've got these pellets going at very high speed. Because they're cold, they make the leaf layer brittle. And then, because they're back in the atmosphere, they turn back into a gas. We were testing on a full scale wheel rail test at 60 miles an hour. Hopefully this autumn we'll be able to go a little bit faster.
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