Go Green Racer
Preston Lerner should be commended for his excellent writing in “Light Speed” [September]. The DeltaWing and its creators are characters in a riveting story. I wonder how many enthusiasts would pay to ride in that racecar? I certainly would. John Baker Duluth, Minn.
My wife and I, both retired science teachers, were unhappy with the article in which a monkey completed tasks to receive sips of water [“Monkey Do, Robot Do,” September], It would be nice if the researchers treated their animals humanely—and POPSCI should have included a statement about such treatment.
I was surprised by your support for new engineering projects that store water in aquifers or otherwise contain water to prevent evaporation [“Flow States,” September], A system like that would stop some evaporation, but preventing water from evaporating would make the sur-
“Is there any way to prevent toe cramps?” In our September FYI section, writer Daniel Engber answered, “Not really.” Readers disagreed. Here are their tips.
rounding environment more arid and thus increase the need for water from man-made sources. Michael Josephson Middle Village, N.Y.
THIS MONTH'S WORST GOOD IDEA
As tools of war, land mines and lEDs are particularly insidious. The work at the University of Rhode Island [“The Labs that Go Boom,” September] is worthwhile, but there is an easier way to detect explosives: sheep. When you want to move a convoy down a road, simply drive a bunch of sheep ahead of you. Two hundred sheep have 800 sharp little hoofs that will cover every bit of the road. Sure, once in a while, a sheep goes flying. Just put it into the refrigerated truck and continue on.
Charles Gould Las
• Eat a spoonful of mustard at night. • Pinch the bridge of your nose. • Take four Turns a day. • Clench your toe muscles during cramp. • Consume more salt.