Cool Railroad Repair

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Never repaired a railway track. Did try some thermite for fun, burned through a piece of half inch mild steel plate. What really impressed me was how bright it was. It was tough to ignite but using a piece of magnesium as a fuse got it going.
 
I used to see that from time to time on the job. Pretty cool find there. That thermite is really something. It take a little while to set up and grind down, but once there done, presto, stronger as heck!
 
I believe they did that on the cable show with Canadian RR's.
 
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