It was something to do with traction and slip, he understood, but he was interested in how the lecturer approached it.Surprisingly, the man was up to ...he challenge, when Reg asked this at the end of the lecture.“Mr Robertson, the question boils down to two opposing forces: Friction and slip. In the case of trains, the friction between wheel and rail – two steel surfaces – is very small, so the force needing to be applied to make the wheels turn is relatively small. This why rail transport is so. Besides thatI was the only boy! She smiled and said who knows who is a boy and girl.She told me I had to stop judging people and thinking some people arebetter than others. She then asked me if I wanted to have a hug. Istormed to my room and shut the door as loud as I could.The next day, I was pretty much silent at class. I wanted to tell themall about my weird experience. However, I knew that no one would believeit. On the way home from school I asked Jim if the reason he was never inschool. More

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