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MIT, NASA engineers develop morphing wing

Green Car Congress

The result is a wing that is much lighter, and thus much more energy efficient, than those with conventional designs, whether made from metal or composites, the researchers say. By way of comparison, rubber has a density of about 1,500 kilograms per cubic meter. Image: Kenny Cheung, NASA Ames Research Center. kilograms per cubic meter.

MIT 360
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Emissions of Air Pollutants down in EU-27

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Energy use by households (the burning of wood, gas, coal etc) is the most important source of PM 2.5 Power plants producing heat and electricity have reduced emissions significantly since 1990 by improving abatement equipment, switching to cleaner fuels and through improved energy efficiency.

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