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19836
This article states that although men who suffer from migraines are more likely to experience heart attacks, scientists have failed to find a biological mechanism linking them. Such a link seems to be suggested in an earlier Science News article, “A Gasping Heart” (SN: 4/7/07, p. 218), which states that a patent foramen ovale is […]
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19835
When this article says that “scientists don’t expect traditional silicon-based solar cells to become competitive with fossil fuels,” one has to ask, “Ever?” Can anyone accurately predict the future price of polysilicon or of fossil fuels? Peter A. KaczowkaLenox, Mass. Your article notes as a put-down that it would be necessary to build a 1-gigawatt […]
- Tech
Reaching for Rays
Harnessing the sun's rays cheaply and efficiently could address the planet's energy needs.
