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exposition dans le jardin de la bibliothèque Bernheim .
Plusieurs sont présentés, celui-ci est mon préféré .
for all graphs, "X" marks the end of the hookes law region.
1. = stress/strain for non-strain aging material like copper, aluminum, stainless steel, etc.
2. = s/s for strain aging like mild steel.
3. = s/s for metal that's deformed, relaxed, then deformed again. it "springs back" down the hookes law line, and will follow that same line back up too.
4. = a material that follows hookes law up, but not down in relaxation - as is supposed by jobst brant when he declares that "springback is evidence of residual stress". no material like this exists to my knowledge.
MESA encourages students from groups underrepresented in STEM career fields.
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This is our greenhouse gas emissions as calculated on our electricity company's website. We're very proud of our car usage, but need to do some serious work on the electricity.
The flight is for a return flight for 2 to South-East Asia. I don't even want to know what our round the world flight cost!
Please identify yourself and help label these pictures. I've marked the MAIN one for each graph. The ones NOT labeled MAIN will be merged into the main one when I get the chance