Comments by "Green Silver" (@locouk) on "" video.

  1. Sports car wheels are often made from magnesium, so are metal pencil sharpeners.
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  2. How many household rolls of toilet paper would stop a 50 BMG? (The fragranced extra soft kind)
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  3. At the micro scale, iron is more reactive than magnesium. The Sparks coming from a grinding wheel when grinding ferrous metals is the small particles oxidising as they come into contact with the air. Friction is a very small part of it.
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