Near perfect hardened metal spheres mean we live in a world where there is less friction. I really think they are something special. http://lessonpeer.com/drhillteach/How%20ball%20bearings%20are%20made..mp3

How ball bearings are made.

You are welcome to listen in as I "explain things scientific". I have had great fun with lasers, robots and absorbing Quantum Physics.  Now as a classroom teacher, laid low by heart surgery its time to pick yourself up, dust yourself off and give it all you've got. "And in the mean time keep on doing science"

Natural Sciences

You are welcome to listen in as I "explain things scientific". I have had great fun with lasers, robots and absorbing Quantum Physics. Now as a classroom teacher, laid low by heart surgery its time to pick yourself up, dust yourself off and give it all you've got. "And in the mean time keep on doing science"

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How ball bearings are made.

How ball bearings are made.