Why Don’t Railroads Need Expansion Joints?
Why Don’t Railroads Need Expansion Joints?
Transcript
- Let's torch it! Previously on Veritasium, we learned how Hans Goldschmidt discovered that metal oxide-like rust can react with aluminum powder to produce pure liquid metal. Oh! Reactions of this type are known as thermite reactions. (dramatic music) Whoa! (laughs) Whoa! Yeah! (explosions popping) That is crazy! Wow. (dramatic music continues) Ini... Read More
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