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A current in a fluid that results from convection.
- ‘A radiator actually only radiates some 20% of its heat, the remaining 80% rises in a convection current from the top of the radiator cooling near the ceiling before dropping from overhead.’
- ‘This is a feature of volcanic rocks formed by separate episodes of molten rock cooling in stages, a result of convection currents within the molten rock mass.’
- ‘In spring when the air temperature outside the bin is higher than the grain temperature, a reverse convection current will occur.’
- ‘As it's open to the sky, the warm air rises up and draws in cooler air from outside, so there's a complete convection current.’
- ‘If a liquid is heated from below, the molecules in it begin to move more rapidly, until they are eventually pushed upward by the denser cooler fluid that remains with the result that convection currents arise in the fluid.’
We take a look at several popular, though confusing, punctuation marks.
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The definitions of ‘buddy’ and ‘bro’ in the OED have recently been revised. We explore their history and increase in popularity.