Hands-on challenge: String around the Earth

Putting science and technology to the test

BBC One

Up close and quizzical

Dallas looks into a mirror

Stand close to a vertical bathroom mirror and move back. Do you see:

  • 1. more of yourself
  • 2. less of yourself
  • 3. the same?
See the correct answer

Science speak

If I have seen a little further it is by standing on the shoulders of Giants.

- Sir Isaac Newton, physicist, mathematician, alchemist, philosopher (1643-1727)

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