April 2022
Why we only see one side of the moon -- the odd phenomenon of tidal locking (Apr 2022)We only see one face of the moon from the Earth, and that isn't a coincidence. The same process that causes this effect also affects other celestial bodies, often in more interesting ways.
Categories: science and technology, education
Why the energy cost or benefit of switching to DAB digital radio is hard to assess (Apr 2022)The big switch-off of analogue radio services in the UK has been deferred repeatedly. One of the reasons for this is that the impact on energy efficiency is hard to assess. This article seeks to explain why.
Categories: science and technology
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