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AstronomySomething New on the Sun
The sharpest visible-light images of the sun ever recorded are revealing puzzling, new features of sunspots, the dark regions where the sun's powerful magnetic field is concentrated.
By Ron Cowen -
19153
Your article describes the economic and environmental costs of semiconductor chips. Interestingly, the impacts on the environment are very similar for the manufacture of solar cells. Many environmentalists place such unrealistic expectations on solar cell energy that they overlook certain facts. First, solar cells yield at most 30 percent efficiency. Second, solar cells do not […]
By Science News -
TechHidden Costs: It takes much stuff to make one tiny chip
A new analysis reveals that the production of a single 2-gram microchip requires nearly 2 kilograms of chemicals and fossil fuels.