Making aluminum requires a lot of electricity. That's because the metal bonds tightly to oxygen and it takes a lot of energy to break that bond. In essence, the process of making aluminum is a giant battery with the silvery metal being reduced to purity at the cathode while oxygen bonds with the carbon anode to make, you guessed it, CO2...
When the weather cools, ectothermic (cold-blooded) animals slow down, which should be good news for their potential prey. But the colorful chameleon has found a way to keep feeding at top speeds even in lower temps: an elastic-tissue tongue, which unlike regular muscles, can uncoil nearly as fast in lower temperatures as it can in warmer ones...
Vitamin D deficiency has been linked to a rapidly expanding inventory of ailments—including heart disease, cancer and the common cold. A new discovery demonstrates how the vitamin plays a major role in keeping the body healthy in the first place, by allowing the immune system's T cells to start doing their jobs.
In order for T cells to become active members of the body's immune system, they must transition from so-called "naive" T cells into either killer cells or helper cells (which are charged with "remembering" specific invaders)...
The fuel cell has a long history. Various types of fuel cells have been part of the NASA space program, and the basic science of how fuel cells work—an energy carrier comes in, creates a flow of charge in the anode, which migrates to the cathode creating a current, and separated by some form of electrolyte—has been known for more than a century...
The entire budget of the U.S. Department of Energy branch that covers today's energy mix—from cleaning up energy generation's environmental aftermath to energy efficiency programs and renewable energy development—is $10 billion...
Launching a successful start-up these days takes more than a good idea—in the digital age a revolutionary quantitative approach can be just as effective as a solid business plan, if not more so...
It looked like a dinosaur, walked like a dinosaur, and ate like, well, some dinosaurs, but a newly discovered species of archosaur, which lived 240 million years ago, was not a dinosaur...
One drinking-water bottle could provide enough energy for an entire household in the developing world if Dan Nocera has his way. A chemist from M.I.T.
NEW YORK—As climatologists weather the IPCC controversy, another storm is brewing, and this one is filled with not with bloggers but with beasts, bugs and bacteria.
Chandrayaan 1, the first moon mission launched by the Indian Space Research Organization, did not last long—in August 2009, controllers lost contact with the probe 10 months into its two-year mission...
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