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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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Friday, 22 November 2019

Metal Wants to Float, Once It’s Etched With a Fricking Laser

An absurdly powerful laser can trap an air bubble in a layer of metal, so that it’ll float no matter what.

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