The layer with the largest spacing to one of its neighbours also possesses the maximum surface atomic density.

面间距最大的一对原子面也具有最大的面原子密度。

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Atomic force microscopy generates very high-resolution images (about 5-nanometer resolution) by “feeling” the surface of a sample with a tiny probe tip.

原子力显微镜是运用一种微小的探针去“感受”样本表面，能得到高分辨率的影像（约5纳米的分辨率）。

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Another showed that an atomic clock sped up when launched on a rocket 10,000 kilometres above Earth's surface, where the planet's gravitational field is weaker.

另一项研究显示，当把原子钟用于火箭，发射到离地面1万公里以上的高空时，由于那里的地球引力场较弱，而略微有所加快。

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It will examine neutrons (the electrically neutral components of atomic nuclei) that are ejected from the lunar surface after being bombarded by cosmic rays (energetic particles that constantly streak through space).

ECONOMIST: Divining water

But chip makers are having trouble making more precise beams, and the Global Positioning System, which allows people to locate themselves to within a few metres on the surface of the earth, is limited by the performance of its atomic clocks.

ECONOMIST: A new way has been devised to make a peculiar form of matter

To remedy this problem, Kylie Catchpole of the Australian National University in Canberra and Albert Polman of the Institute for Atomic and Molecular Physics in Amsterdam have been trying to redirect the light that falls onto the surface of a cell in such a way that all colours are efficiently absorbed.

ECONOMIST: Solar energy