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Do you Still Need A TV Aerial?

At the moment you need TV Aerials for Freeview and BT Vision but there is the Freesat alternative that is by a satellite dish. But I beli...

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Tuesday, 18 December 2018

Galileo, Krypton, and How the Metric Standard Came to Be

Science often progresses not because of ideas or insights but because more precise tools for measurement are invented, and those tools open new frontiers.

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