An electron or an atom behaves in some ways as through it were a group of waves.

电子或原子的运动方式，多少有点像一组波。

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Their Helicon Double Layer Thruster uses radio waves to ionise one of the inert, or noble gases - a group which includes krypton, xenon and argon.

BBC: Glow from argon plasma. Image: LPTP, Ecole Polytechnique

Further proof came in another story making waves in Strasbourg, the departure of British Conservatives from the main centre-right group, the European People's Party (EPP).

ECONOMIST: Charlemagne