Word: toothbrushes
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Dates: during 1990-1999
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Back in her bathroom, Angela turns to splay her fingers under the hand sanitizer. Next she picks up her DentiGuard toothbrush, which checks for signs of gum disease and measures her bone density while it brushes her teeth. During the course of her morning routine, a total of 85 microscopic sensors, in everything from her hairbrush to the medicine cabinet, will keep tabs on her health. Most days she doesn't even notice their presence...
Over the course of our visits to the Gallaghers earlier this year, I noticed a gigantic toothbrush gradually taking shape in their living room. Finally, I just had to ask what was going on. It turned out that their son John, a seventh-grader, was putting together a skit with a group of other kids. Their short play was loosely based on Shakespeare's Taming of the Shrew, except that it was set inside a gigantic mouth, and the main characters were teeth. The theme involved not a tumultuous relationship but the invention of the electric toothbrush. Yet part...
...will, of course, need your toothbrush. And you will, of course, need your pajamas...
...temptation to sunbathe and/or fall asleep can be overwhelming. House libraries get crowded quickly, Lamont is more conducive to people-watching and flirting than to concentrating on reading, and Widener is just too damn spooky. Cabot is strictly for the "serious" student--bring your pillow and your toothbrush and prepare to camp out for two weeks...
...have scientists managed to do all this without those protean stem cells? Part of the answer is smart engineering. Using materials such as polymers with pores no wider than a toothbrush bristle, researchers have learned to sculpt scaffolds in shapes into which cells can settle. The other part of the answer is just plain cell biology. Scientists have discovered that they don't have to teach old cells new tricks; given the right framework and the right nutrients, cells will organize themselves into real tissues as the scaffolds dissolve. "I'm a great believer in the cells. They...