Weekend miscellany

The Fourth Paradigm: Data-Intensive Scientific Discovery free book

Beautiful Testing has gone to press. Should be in bookstores by October 30.

Placebos have side effects too

10/GUI prototype for human-computer interaction

Math Teachers at Play #17. This is a much larger edition than usual.

How schools invented letter grades

Assembly of the International Space Station time-lapse animation

When noise is your friend: smoothed analysis

Fame Frenzy music video

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