By Dr. Joe Schwarcz
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Additional info for Dr. Joe & What You Didn't Know: 99 Fascinating Questions About the Chemistry of Everyday Life
Researchers at University Central Hospital in Helsinki took Barbie's measurements and concluded that her thighs, hips, and stomach were too small. As a real live woman, she'd lack the amount of body fat — 20 percent — necessary to have regular periods. Little girls who tried to emulate Barbie could become candidates for anorexia nervosa, the researchers claimed. Give me a break. Barbie was actually the toy industry's first "full figure" doll when she appeared in 1958. She was named after Barbie Handler, the daughter of Ruth Handler, who founded the Mattel toy company in 1945.
It's merely providing the means for electrons to flow from one metal to another. The power comes from the reaction between copper and zinc. Now that you've learned how to make a battery, you also understand why you shouldn't let your silver utensils touch aluminum pots in the dishwasher. Electrons will flow from the silver to the aluminum, destroying the surface of the silver. 14. What are smelling salts? Victorian ladies fainted regularly. Characterized as the weaker sex, they were conditioned to fulfil the role.
Later in her career, Annie Eva Fay met the great Harry Houdini, and she told him how she had tricked Crookes by securing one handle of the circuit beneath her knee and using her free hand to perform her various tasks. Years after that, one 43 DR. JOE SCHWARCZ of Crookes's galvanometers was discovered in the London Science Museum. Tests showed that a subject could insert both electrodes in his socks, freeing both hands, without interrupting the current. Was Crookes really taken in, or, as some have suggested, did he simply delight in playing around with young women under his wife's nose?