Johanno@lemmynsfw.comtoLemmy Shitpost@lemmy.world•The Folding of Japanese Swords: Turning "Crap Materials" into MasterpiecesEnglish
4·
1 year agoThere was a documentation where they had a weapon smith that used medieval techniques. He made an normal European sword and a katana from around the same time.
When he used the katana to cut through the sword it broke.
Ok when not glued: both magnets get pulled to each other. The hand has to use some force in order to stay in place, so the car moves.
When glued: both magnets still get pulled to each other, but now the force is cancelled out since the force that would pull it forward also has to be used to hold the other in place.