Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
An electron emitted from an atom by interaction with a photon, especially an electron emitted from a solid surface by the action of light.[as modifier] ‘photoelectron spectroscopy’
- ‘Above the photoelectric threshold, photoelectrons are emitted in proportion to the intensity of incident light.’
- ‘The other perplexing fact was that the photoelectrons seemed to be emitted instantaneously when the light was turned on.’
- ‘By measuring the emission time of the photoelectrons using the streak method, we have been able to determine both the duration and the chirp of the sub-femtosecond x-ray pulse.’
- ‘If they receive a second exposure with a low intensity light, developer anions adsorbed to the surface sensitivity centers effectively repel the photoelectrons so that surface latent image specks cannot form.’
- ‘Equally important is the suppression of photoelectrons produced by scattered photons.’
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Before you run for the hills, let’s run through a list of ‘run’ expressions that are running through our minds.
The definitions of ‘buddy’ and ‘bro’ in the OED have recently been revised. We explore their history and increase in popularity.