Word: watered
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...over the Bay of Bengal. So far, over 250 people have died in flooding made worse when officials were forced to open dams for fear they might burst. Some 1,500 relief camps have been set up for the estimated 2.5 million people who were displaced as the raging water destroyed entire villages, washing away roads, bridges, crops and livestock. (See pictures of India's 2008 floods...
...part of the refining process, oil companies use electric fields to separate the oil and water both present when oil is drilled. That process of electrocoalescence, an amped-up version of what naturally occurs with oil and vinegar in salad dressing, uses electric fields to make oppositely charged water drops coalesce with one other, which helps fully separate them from...
...What’s new is that above a critical electric field, the water drops show a direct contact and repel—against what is believed [will happen],” said Bird, a Harvard doctoral student in engineering. Instead of infinitely increasing the coalescing speed of water, an electric field above the critical level causes the drops to deform, combine briefly, and then repel, never actually coalescing...
...explanation for this new find, according to Bird, lies in the geometry of electrically charged water drops. While normal, uncharged water drops have round curves, charged ones have parabolic curves. So while normal drops repel or coalesce upon contact depending on the size of the drop and speed of collision, the unusual shape of charged drops causes them to come together briefly then separate...
...hopeful that this new observation might stem new experimental work on how charge is conducted from storm clouds,” he said. “Also, sources of biofuels have to do with much wetter systems, so potentially you can have more water-based systems...