The following questions are posed and answered by a locomotive engineer (train driver) :
1. How do you build and test a New Zealand diesel train and what materials are involved? 
2. How do you get trains onto a track after they are built and how do you get them off if they need a repair? 
3. What is the speed of a train at a crossing and is there any way to tell it is coming other than the lights or barrier arms? 
4. What is the weight of an average train and how strong does a bridge need to be to handle a train? 
5. How does wild weather like earthquakes, lightning, and floods affect trains and tracks? 
6. How does a train balance on a train track and how do they stay and move along on them? 
7. Is there a gear system and how does it and the brakes work?
More at https://www.learnz.org.nz/stemrail213/connect-with-experts

LEARNZ rail and STEM learning podcast 2 of 2

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