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On Your BehalfEpisodes

  1. Asteroid Threat

    Will the earth be one day hit by an asteroid with disastrous effect?

  2. Round the World by Hot Air Balloon

    Why have all attempts to fly around the world in a hot air balloon ended in failure?

  3. Emergency Hovercrafts

    Why aren't hovercrafts used to provide relief supplies after hurricanes?

  4. Satellites and the Ozone Layer

    Does sending rockets and satellites into space add to the depletion of the ozone layer?

  5. Cricket or Baseball?

    Why, as English speaking nations, don't America and Canada play cricket?

  6. The Mysteries of the Titanic

    Why didn't nearby ships come to the aid of the Titanic?

  7. The MV Stirling Castle

    What is the meaning and origin of the phrase "choc-a-bloc"?

  8. Nuclear Weapons

    Are India and Pakistan bluffing about having nuclear weapons?

  9. Snoring

    Why does the British £2 coin have an inscription about giants?

  10. Australian Maoris

    Why didn't Maoris go to Australia? What are the origins of the Rolls Royce flying lady?

  11. The Cuckoo

    How do cuckoos learn to sing? Can water-damaged books be restored?

  12. The Big Bang

    What existed before the Big Bang? What caused apes to mutate into Homo sapiens?

  13. Pollution Free Engine

    Is the ceremonial bugle call, the Last Post, unique to Britain?

  14. Longest Place Name

    Why does Britain compete as one team in the Olympics but as four teams in the World Cup?

  15. Handshakes

    Why and when did humans start shaking hands? Do humans only use 10% of their brains?

  16. Radio Waves

    Why does lightning sometimes look green? Why don't insects drown when it rains?

  17. Landmines

    What is the best way to clear landmines? How accurate was Mayan astronomy?

  18. Dollar Signs

    What is the origin of the US dollar symbol?

  19. Grapefruit Diets

    Does eating grapefruit shrink your stomach? What language did Jesus speak?

  20. The Purpose of Mosquitoes

    Do mosquitoes have an ecological purpose? Did ancient Egyptians brew beer?

  21. Dow Jones Index

    Do ships really disappear in the Bermuda Triangle?

  22. Best Man

    Has another planet been found in our solar system? What makes a proper poem?

  23. Crop Circles

    Are crop circles magical, meteorological, or man-made?

  24. Yagan's Head

    What happened to the head of the Aboriginal warrior Yagan?

  25. Rotating Planets

    Why does everything in space rotate on its own axis?

  26. Radio Jamming

    Is it possible to develop lung cancer from passive smoking?

  27. El Nino

    What causes the weather phenomenon called El Nino?

  28. Tic-Tac Men

    Why are counter staff in banks called tellers? What is sudden adult death syndrome?

  29. Romans Maths

    How did Romans do maths with their numerical system?

  30. The Big Bang

    Was there anything before the Big Bang?

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