[Watch this short video and you'll see some of the utter brilliance in the design of trains that you don't even know about or think about. The comments from men who worked on trains about this will show you how clever this is. Our entire civilisation with all our inventions and creations, contain LOTS of examples of insane genius. I urge White men to study technical topics. That's where you'll see the amazing wonders THAT YOU TAKE FOR GRANTED … that come ONLY FROM OUR PEOPLE. Jan]

Here’s the video:

https://www.youtube.com/watch?v=XzgryPhtc1Y