Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
An instrument for measuring the intensity of light.
- ‘Special test patterns are designed for use with instrumentation such as color analyzers, photometers, waveform monitors, and oscilloscopes.’
- ‘AERONET is a global network of more than 100 sun photometers that measure the amount of sunlight absorbed by aerosols (fine particles in the air) at wavelengths from ultraviolet to infrared.’
- ‘When we measure the luminous intensity of a lamp with a photometer, for example, the lamp current and color temperature are quantities of the measurement equation.’
- ‘Sun photometers measure how difficult it is for sunlight to pass through the Earth's atmosphere as it interacts with pollution particles, which reduce the amount of light and energy reaching the Earth's surface.’
- ‘At least 500 cells from plasmolysed and control cells were compared, using the photometer coupled to the Zeiss Axioplan microscope, which converts fluorescence intensity to exposure time for photomicrography.’
We take a look at several popular, though confusing, punctuation marks.
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