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When Girls Studied Planets and the Skies Had No Limits. (via)

Redefining the kilogram, using precise measurements of Planck's constant. Note that despite the article's focus on America's NIST measurement, two groups in other countries have made similarly accurate measurements.

Study shows that having more than one illustration per page-spread makes it harder for early readers to learn new words. Key jargon: Cognitive Load Theory. (via)


Subject quote from "Hope on Fire," Vienna Teng.

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