▲ 163 ▼ Friction without contact discovered as magnetic forces break a 300-year-old law (www.sciencedaily.com) submitted 7 months ago by TheReturnOfPEB@reddthat.com to c/science@lemmy.world 28 comments fedilink hide all child comments
[–] suff@piefed.social 3 points 7 months ago (2 children) Although the magnetic interaction, i.e. the normal load between the two layers monotonically decreases with increasing h, 〈Fₓ〉exhibits a clear peak around h₀ = 9 mm. This is in strong contradiction with Amonton's empirical first law, which claims that sliding friction is proportional to the load ^33^. permalink fedilink source parent hideshow 2 child comments replies: [–] teft@piefed.social 1 point 7 months ago (1 child) Oh wow a lot farther than i was thinking. I had guessed submillimeter. Thanks for the link to the paper. permalink fedilink source parent hideshow 1 child comment replies: [–] suff@piefed.social 1 point 7 months ago Magnets such as those NdFeB magnets (N35 grade with nickel surface coating, HKCM Article No. 9963-73617 and HKCM Article No. 9962-61814) weren't tested back then, I guess. permalink fedilink source parent
[–] teft@piefed.social 1 point 7 months ago (1 child) Oh wow a lot farther than i was thinking. I had guessed submillimeter. Thanks for the link to the paper. permalink fedilink source parent hideshow 1 child comment replies: [–] suff@piefed.social 1 point 7 months ago Magnets such as those NdFeB magnets (N35 grade with nickel surface coating, HKCM Article No. 9963-73617 and HKCM Article No. 9962-61814) weren't tested back then, I guess. permalink fedilink source parent
[–] suff@piefed.social 1 point 7 months ago Magnets such as those NdFeB magnets (N35 grade with nickel surface coating, HKCM Article No. 9963-73617 and HKCM Article No. 9962-61814) weren't tested back then, I guess. permalink fedilink source parent