At first sight this seems crazy . The muons in question drizzle down from the atmosphere at the rate of only one per square centimetre a minute .
乍一看,这似乎显得有点疯狂,问题是穿过大气层的μ子的速率每分钟每平方厘米只有一个。
However , he added , at this speed they will be generating more heat per cubic centimetre than a nuclear reactor .
但是,他又补充,在这种速度下每立方厘米产生的热将超过核反应堆。
This sensor consists of a piece of silicon less than half a centimetre across , fitted with an array of 100 gold electrodes each thinner than a human hair .
这个传感器由不到半厘米厚的硅片构成,上面排列有100个比头发丝还细的金质电极。
The symptoms of black spot are small round black patches , ranging from 1 millimetre to 1 centimetre , on the upper side of the leaf .
黑斑病的特征是叶子上表面有小小的黑色圆斑,直径从1毫米到1厘米不等。
At room temperature , the slime mould moves at a slothful rate of about a centimetre per hour , but you can speed this movement up by giving the mould a blast of warm , moist air .
In the latest phase of the nanotechnology revolution , scientists have built a collection of minuscule objects from dna , including toothed gears , curved tubes , and a wireframe beach ball five millionths of a centimetre in diameter .
The schwarzschild radius for the sun is about two miles , 1 / 2 00000 th of its current width ; for the earth to become a black hole , it would have to be squeezed into a ball with a radius of one centimetre .
Although the new device is still at an experimental stage , the team 's calculations , published in a paper in the journal of applied physics in november , suggest that it could convert heat to electricity at a rate of 100 watts per square centimetre .