Word: scale
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...both Israel and Hamas may be ready for it by then. On the eve of the Feb. 10 Israeli elections, neither Foreign Minister Tzipi Livni nor Defense Minister Ehud Barak--both of whom are running for Prime Minister--will want to bear the costs or consequences of a full-scale invasion and prolonged occupation of the refugee camps and cities that constitute Hamas' strongholds. On the other side, Hamas does not want to lose control of Gaza. For both sides, this war has always been about renegotiating the terms of the cease-fire that had held for five months...
...Americans. Even if it was political opportunism, as conservative critics insisted, it got home-heating fuel to hundreds of thousands of yanquis during the past four winters, when the price was often skyrocketing. On Monday, however, with world oil prices plunging, the Venezuelan President decided to suspend his large-scale, multistate U.S. program in order to tend to financial concerns at home. Then on Wednesday, at the urging of U.S. politicians whose constituents had come to rely on the oil, Chávez reversed himself and said the heating oil would keep flowing this winter...
What makes things trickier still is that not all attraction is equal. Some materials are drawn much more powerfully together than others - particularly on the nano (billionth of a meter) scale. And that difference can be exploited. In the Nature experiment, the research team began by placing a microscopically small sphere of gold on a glass surface. Gold and glass get along well enough and under the right circumstances will attract. But what they both like a whole lot more is a liquid called bromobenzene. When the researchers introduced a little bromobenzene to the other two materials, they both began...
...seem. Every time you ice skate, you experience something similar, as the shared properties of skate blade against ice create a thin film of water of a very particular thickness on which you, after a fashion, levitate. What makes the Harvard and NIH work so promising is its nano scale...
...friction and allows the hardware to be built to finer tolerances and tinier sizes. Design them small enough, and you can put them in microscopically tiny places machinery could never go before. "When you understand the forces you're manipulating," says Parsegian, "you can design efficiently at the nanometer scale...