[–] ginko 6y ago ↗ If you want to see the effect of friction welding you only need 7 hexagonal plastic pencils:https://www.youtube.com/watch?v=Fn3VFXBTsDU (it's in German but captions should work well)
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[ 3.7 ms ] story [ 12.1 ms ] threadhttps://www.youtube.com/watch?v=Fn3VFXBTsDU (it's in German but captions should work well)