One of the mysteries of the English language finally explained.
treated as singular The branch of physics that deals with the behavior of electrons and electron beams in magnetic and electric fields.
- ‘Lenses for precision electron optics are mainly magnetic, requiring large cylinders of soft iron to focus an electron beam.’
- ‘Electron optics was born in 1927, when Hans Busch showed that the elementary lens equation is applicable to electron image formation.’
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