Hand Tools

Subject:
Re: Physics of friction
Response To:
Re: Physics of friction ()

Jack Dover
Maybe it's atmospheric pressure?

There's a scraping exercise when two blocks are scraped to a plate and then to each other. Basically a three plates method, but only two plates are scraped. When done properly two blocks are held together by atmospheric pressure so tight they feel like they're magnets. If blocks are small enough, you could lift one block with a second block stuck to it. My scraping isn't this good, but my buddy I was talking about does it routinely.

I think it's possible to find a plane with a sole flat enough for this. Or to plane a board such that it confirms to the sole almost perfectly. There might be additional forces, like static electricity that makes this effect more pronounceable.

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