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POPSXerogel I need to understand what are xerogel and aerogel.
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POPSSave $5 per tank of your car's fuel First of all, the MPG-CAPS™ change the surface heat absorption characteristics of the metal. The fuel and air mixture produces energy in the form of heat that creates expansion that drives the piston down, and the film inhibits the transfer of radiant heat. This directly results in higher combustion temperature, greater expansion, and more power.
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POPSDon't Stress! Bacterial Cell's 'Crisis Command Center' Revealed If a bacteria cell finds itself in a dangerous situation - for example, if the temperature or saltiness of the bacteria's environment reach dangerous levels which threaten the survival of the bacteria -a warning signal from the cell's surface is transmitted into the cell. Using cutting edge electron microscopy imaging techniques the authors of the new research observed that the stressosomes receive this warning signal, and in response several proteins called RSBT break away from the large stressosome. This breakaway triggers a cascade of signals within the cell which results in over 150 proteins being produced - proteins which enable the cell to adapt, react and survive in its new environment.
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POPSMaking meals in a rice cooker We have a Zojirushi fuzzy-logic rice cooker that we love. It was pricy when we bought it -- $140 or so -- but we use it all the time. If we calculated it as a per-use cost, it'd be down to pennies per meal. The cheapo $20 or $30 rice cookers we'd had before we never used. This was $140 well spent.
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POPSCarbon Dioxide Emissions Outpacing Projections Pair this Washington Post story together with the item, clipped last night by my colleague Rebecca Ruiz, on impact of carbon overload on coral reefs. Further down in the Post story, James L. Connaughton, who chairs the White House Council on Environmental Quality, stresses the "need for a broader and more aggressive effort by the major economies to come together."
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POPSWhat your sweat says about you? Sweating is the discharge of a salty liquid from the body’s sweat glands. This process is also called perspiration. Sweating is a vital function that helps the body stay cool.
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