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2
votes
7answers
604 views

“Magnetic mnemonics”

Over and over I'm getting into the same trouble, so I'd like to ask for some help. I need to solve some basic electrodynamics problem, involving magnetic fields, moving charges or currents. But I ...
3
votes
2answers
563 views

Mnemonics to remember various properties of materials

I'm trying to figure out how to remember that hardness: how resistant it is to deformation toughness: how resistant it is to brittle failures stress: force on a surface area strength: ability to ...