• Air date: 20 Jan '75 25 episodes
      Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
  • List of Episodes (25)
    • 1. The Killer Dust

      20 Jan '75
      This investigative report by Horizon covers an investigation into the deaths of people who inhaled asbestos dust at Acre Mill, Yorkshire, England.
    • 2. A Time to Be Born

      27 Jan '75
      Horizon investigates the growing tendency in hospitals in Britain to induce childbirth by injecting the hormone oxytocin into expectant mothers.
    • 3. The Unsafe Sea

      10 Feb '75
      This episode of Horizon examines the problems of ship safety in the English Channel.
    • 4. The Change of Life

      17 Feb '75
      Horizon investigates the symptoms of menopause and the various degrees in which it occurs.
    • 5. Project Fido

      24 Feb '75
      This episode of Horizon shows the peril to man of the ever increasing dog population in the western world.
    • 6. The Long, Long Walkabout

      07 Apr '75
      This report by Horizon covers an investigation by a group of Australian scientists that looks into the origins and history of the Australian Aborigines.
    • 7. The Overworked Miracle

      14 Apr '75
      This report by Horizon describes the resistance to antibiotics, fast growing in all countries, and the dangers it could mean for the future.
    • 8. Not the Cheapest, But the Best

      21 Apr '75
      Horizon investigates the life and work of the great engineer, Isambard Kingdom Brunel.
    • 9. A Spoonful of Roughage

      28 Apr '75
      Horizon explores the effect of fibre in diet on the diseases of western world.
    • 10. Brain Poison

      05 May '75
      Horizon presents an investigation into the effects on health of lead in the urban atmosphere.
    • 11. The Bulldog's Last Bark

      12 May '75
      This is a Horizon report on the building of the British military deterrent from the first decision to make it in 1941 until the present state of lethargy.
    • 12. Benjamin

      19 May '75
      This episode of Horizon follows the progress of Benjamin Pile, born on 22 November, 1974, at Oxford in Britain.
    • 13. The McMaster Experiment

      02 Jun '75
      This report by Horizon covers an experiment at McMaster University Medical School, in Ontario, Canada.
    • 14. The Glazed Outlook

      09 Jun '75
      Horizon investigates the attempts by the University of Newcastle in England to define and create an ideal living and working environment.
    • 15. The Three Chord Trick

      16 Jun '75
      Horizon explores the psychology of music, as it explains why music has such a powerful emotive effect in every society.
    • 16. The Cleanest Place in the World

      23 Jun '75
      This report by Horizon brings you scientists that are using Antarctica as a giant natural lab to study who has polluted Earth most; man or nature.
    • 17. Strange Sleep

      30 Jun '75
      Horizon investigates the discovery of gaseous anaesthetic from 1840 until the early years of 20th century.
    • 18. The Greatest Advance Since the Wheel?

      07 Jul '75
      Horizon reports on the history of superconductivity, from discovery, to the present.
    • 19. How Do You Read?

      14 Jul '75
      In this documentary, Horizon reports on the reading process; how it works for the fluent, and how it should be taught.
    • 20. The Sickly Sea

      21 Jul '75
      This episode of Horizon describes the various aspects of the pollution problem of the Mediterranean Sea.
    • 21. Happy Catastrophe

      28 Jul '75
      In this Horizon episode, Rene Thom's mathematical discovery of the catastrophe theory is investigated.
    • 22. To Die, to Live - The Survivors of Hiroshima

      04 Aug '75
      This documentary by Horizon commemorates the dropping of the A-bomb on Hiroshima, Japan on August 6, 1945.
    • 23. Cannabis

      11 Aug '75
      Horizon takes a look at the history of cannabis and the research on the effects of smoking marijuana.
    • 24. Meditation and the Mind

      18 Aug '75
      This is a report by Horizon on Transcendental Meditation, or TM, brought to the West by the Maharishi Mahesh Yogi.
    • 25. The Trobriand Experiment

      29 Dec '75
      This documentary by Horizon is about the Trobriand islanders, whose culture is based on the Kula, a communication system of giving and receiving.