The small spherical object

I know you are curious. It's not the one you think. Find out what it is at witnwisdumb speak.

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I'm teaching the intro mechanics course next term, starting on Monday, and my colleagues who just finished teaching it in the Winter term used WebAssign to handle most of the homework. They speak very highly of it, so I'm probably going to use it next term. I'm curious to know what other people…
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