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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, 28 September 2018

Why a Tennis Ball Goes Flying When Bounced on a Basketball

When you bounce a tennis ball off a moving basketball, the tennis ball goes careening off at high speed. Here's why that happens.

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