Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
A cathode which emits electrons when illuminated, causing an electric current.
- ‘The photocathode in the night scope that converts visible light into electrons is sensitive to both visible light and some infrared radiation.’
- ‘Reflections from the target were focused on a converter unit containing a photocathode, which provided the viewer with a reconstructed image.’
- ‘The quantum efficiency of the photocathode decreases significantly at 830 nm creating an effective acceptance bandwidth of 650-830 nm in fluorescence detection.’
- ‘The long-pass and band-pass filter combination was used in these studies at each target depth, and the integration time was varied between 200 and 700 ms because the amount of light collected at the image intensifier photocathode varied.’
- ‘If excitation light rejection at the photocathode were not an issue, this might simply require an increased integration time or gain setting to acquire a sufficient fluorescence signal for processing.’
We take a look at several popular, though confusing, punctuation marks.
From Afghanistan to Zimbabwe, discover surprising and intriguing language facts from around the globe.
The definitions of ‘buddy’ and ‘bro’ in the OED have recently been revised. We explore their history and increase in popularity.