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Why are ‘leaves on the line’ such a problem for trains?

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What is a Tesla coil?

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Hawaii’s Kilauea volcano has been erupting for 31 years – the lava flow travels around 33ft every hour

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Physics

electric

How fast does electricity travel?

Education

theories

Is science “just a theory”?

Space

universe

How can you measure the age of the universe?

Biology

virus

Are viruses dead or alive?

Physics

balloons

Why do helium balloons float?

Education

angry-birds

Are games a good way to teach & make learning fun?

Biology

nipple

Why do men have nipples?

Jupiter has more than 50 moons, and its biggest moon, Ganymede, is bigger than Mercury or Pluto

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Space

ss

What would happen if a planet suddenly disappeared?