A device that moves by usually burning fuel and expelling the resulting hot gases from one end. The rocket moves in the opposite direction from the escaping gases, an example of Newton’s third law of motion: For every action there is an equal and opposite reaction. Rockets can be used…

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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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