Word: hydrogen
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Dates: during 2000-2009
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...wind energies are intermittent: when the sky is cloudy or the breeze dies down, fossil fuel or nuclear plants must kick in to compensate. But scientists are working on better ways to store electricity from renewable sources. Current from wind, solar or geothermal energy can be used to extract hydrogen from water molecules. In the future, hydrogen could be stored in tanks, and when energy is needed, the gas could be run through a fuel cell, a device that combines hydrogen with oxygen. The result: pollution-free electricity, with water as the only by-product. Already fuel-cell buses, cars...
...hope that once the U.S. installs a friendly regime in Iraq--the Administration says it is still merely considering such a plan--Washington will end its alliance with the kingdom, its oil and bases no longer critical to U.S. interests. "If we sort out Iraq and Detroit develops a hydrogen engine," says a U.S. diplomat, "Saudi Arabia will go back to being a fascinating, benighted part of the world that people don't visit...
...hard to imagine a more inhospitable place on earth than the hydrothermal vents that pepper the ocean floor. These cracks in the sea bottom spew water superheated by rising magma to as high as 750[degrees]F and contaminated with toxic substances such as hydrogen sulfide, cadmium, arsenic and lead. Yet despite these lethal conditions, life not only survives but thrives in the form of colonies of microbes that feed on poison and multiply in temperatures that could hard-boil...
While their hardiness was a big surprise, the microbes' ability to eat hydrogen, sulfur, manganese and other chemicals--a process known as known as chemoautotrophy--was a revelation. Until then, all living systems were thought to depend on photosynthesis, using sunlight as a primary energy source. (Even cave-dwelling or deep-water creatures who never see the sun eat organic matter that ultimately originates from photosynthesis.) But if life could thrive without even indirect contact with sunlight, the amount of potentially habitable real estate on the planet would expand considerably...
...hope that once the U.S. installs a friendly regime in Iraq-the Administration says it is still merely considering such a plan-Washington will end its alliance with the kingdom, its oil and bases no longer critical to U.S. interests. "If we sort out Iraq and Detroit develops a hydrogen engine," says a U.S. diplomat, "Saudi Arabia will go back to being a fascinating, benighted part of the world that people don't visit...