Waste heat could power computers, cell phones
Close to 60 percent of the energy produced by burning fuels or generated by power plants is lost as excess heat. Computers, cars and cell phones all have to get rid of excess heat to run properly, creating a significant energy waste. Researchers at MIT believe they’ve developed a way to reclaim a majority of that wasted energy and turn it into electricity.
Such an advancement
This Friday, don’t just buy nothing — use nothing!
For 20 years, the people behind Buy Nothing Day have been pleading with consumers to avoid the frenzy inherent in “Black Friday,” the no-holds-barred shop-o-rama that comes the day after Thanksgiving.
This year, they’re ramping things up and calling for an all-out wildcat strike against the “capitalist consumption machine.” Socialists, you say? No, just worried people who want to take a stand in the face of “crises of
Eight ways we should clean up our food supply
The landscape of health has changed. No longer are our families guaranteed a healthy livelihood, not in the face of the current rates of cancer, diabetes, obesity, Alzheimers and allergies. In the words of Elizabeth Warren, a Harvard University law professor who is head of the Congressional Oversight Panel, “We need a new model,” and we need a new food system. It’s our health on
