What’s the matter, do you ask? I’ll tell you right away. It’s everything around you, as you work, or sleep, or play. A chair is matter, a table, too, and so is a rock or tree. A cloud, a star, a…
By Patricia Fosarelli, M.D. In the last 30 years, television has become a pervasive part of our lives. Children, especially, are attracted by its magic. Children in the United States watch an…
A light bulb uses only a little electricity. But electric stoves, refrigerators, and frying pans use as much electricity as dozens of light bulbs. Can you use too much electricity? What happens if…
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