


Even air creates friction—it rubs against moving things and slows them down. You can make a \”helicopter” that uses the friction of air to slow its fall—and to spin, too. Place the paper with…

If you were offered seaweed, or snails, or frozen fish eyes, what would you do? Would you turn up your nose in disgust? Or would you say, “Yes, thank you!”? In Japan, seaweed is an important food….

All children are toymakers. Sticks and stones, boxes and bones—all sorts of throwaway things—can be made into toys. Toys are as much fun to make as they are to play with. All you need are some…
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