When the electrons cross the junction, they drop from the higher energy level to the lower one, and the energy each electron loses when it drops takes the form of light to a large extent.

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When a dog's energy level is higher than the owner's energy level, it can lead to problems.

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The chattering scenes, which seem to have been improvised, have a higher energy level than the rest of the picture, and they're hilarious.

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These pairs are difficult to break up, so any intruding electron, unable to displace an incumbent from a pair, must occupy a higher, vacant energy level within the superconductor in order to stay put.

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Britain saw the same level of decline over those four years, but Scotland continues to have higher energy use.

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