Hands-on brainteaser: mirror reflections

Putting science and technology to the test

BBC One

Rocking the boat

A toy boat in a water tank

Imagine a boat floating in a lake, and a heavy object such as an anchor (but without a chain) is dropped off the side. What happens to the water level of the lake?

  • A. Rises
  • B. Falls
  • C. Stays the same
See the correct answer

Science speak

To confine our attention to terrestrial matters would be to limit the human spirit.

- Stephen Hawking, theoretical physicist (1942-present)

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