I put some in the furnace today, heated to red hot and let them air cool. What a difference. Now my 7th graders can easily peen them. Thanks for all the suggestions.
- posted
19 years ago
annealing solid rivets
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- posted
19 years ago
And you and your students have learned a very good lesson about properties that can be inbued into metals by heat treatments.
-- Why isn't there an Ozone Hole at the NORTH Pole?
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- posted
19 years ago
Reindeer farts, and rudolphs nose jk
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- posted
19 years ago
There probably is, in winter. Ozone forms when sunlight hits oxygen, and the north pole is dark for 6 months. It's hard for the UV to sneak thru an ozone hole in the dark, but that does not sell govt funded research projects (white collar welfare).
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- posted
19 years ago
Good Answer! Unfortunately, it really doesn't wash.
-- Why isn't there an Ozone Hole at the NORTH Pole?