shadow:

The dark shape cast by an object when it blocks light falling on a surface. The dark, central part of the shadow is called the umbra; the surrounding area of partial shadow is called the penumbra.

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Coding 101Monday March 4, 2019

Coding 101

I had a good time rewriting my latest book, HOW TO TALK TO YOUR COMPUTER (now part of HarperCollins’ Let’s Read and Find Out series). I have always been interested in the intersection of kids, education and computers, and I wrote the…

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