Nitrate

Horizon · S9 · E14

Out of Volcanoes

  • TV-PG
  • Apr 17, 1972
  • 60 min

In this report, Horizon looks at the various aspects of volcanoes and explaining the views of some vulcanologists.

Watch free on PBS

About this episode

In this report, Horizon looks at the various aspects of volcanoes and explaining the views of some vulcanologists.

Season 9

33 episodes
  1. 1The Missing Link

    60 minJan 3, 1972

    In this episode of Horizon, you find out how feasible it is to build a 35 mile long tunnel between Britain and France.

  2. 2Navajo - The Last Red Indians

    60 minJan 10, 1972

    Horizon explores the American Navajo indian tribe of New Mexico, in the United States.

  3. 3How Much Do You Smell?

    60 minJan 17, 1972

    Why do humans have such a poor sense of smell as compared to animals? Horizon investigates why.

  4. 4The Parasite of Paradise

    60 minJan 31, 1972

    This story by Horizon reports on Malaria in the country of Gambia, in West Africa.

  5. 5The Day it Rained Periwinkles

    60 minFeb 7, 1972

    Horizon investigates reports of strange phenomena and about what the scientific theory is about these phenomena.

  6. 6Are You Doing This for Me Doctor, or Am I Doing It for You?

    60 minFeb 14, 1972

    Horizon explores if a doctor's treatment of the patient is always in the best interest of the patient.

  7. 7How They Sold Doomsday

    60 minFeb 21, 1972

    In this episode, Horizon looks the the ecological movement, and the resistance against the movement in Britain, and the USA.

  8. 8For Love or Money?

    60 minFeb 28, 1972

    In this report by Horizon, the effect of boring jobs on industrial relations is looked at, along with work and job satisfaction.

  9. 9Whales, Dolphins and Men

    60 minMar 6, 1972

    Horizon looks at the life of whales and dolphins, and how they interact with man.

  10. 10What Is Race?

    60 minMar 13, 1972

    Horizon investigates the various conceptions of "race" that have arisen since the 17th century.

  11. 11The Man-Made Lakes in Africa

    60 minMar 20, 1972

    Horizon investigates the use of hydroelectric power in Africa, at Lake Kariba, Lake Volta, and Lake Nasser.

  12. 12Survival in the Sahara

    60 minMar 27, 1972

    This episode of Horizon follows the expedition of two German naturalists exploring the Northwestern desert of the Sahara in Africa.

  13. 13Mind Over Body

    60 minApr 10, 1972

    This story by Horizon is about American research into techniques for controlling bodily functions with the mind.

  14. 14Out of Volcanoes

    60 minApr 17, 1972Now viewing

    In this report, Horizon looks at the various aspects of volcanoes and explaining the views of some vulcanologists.

  15. 15The Wizard Who Spat on the Floor

    60 minMay 1, 1972

    Horizon presents a study of Thomas Alva Edison and his achievements as an inventor.

  16. 16Rail Crash

    60 minMay 8, 1972

    Horizon reviews the history of train accidents and the new safety precautions to prevent them.

  17. 17Do You Dig National Parks?

    60 minMay 22, 1972

    Horizon investigates the threat to the Snowdonia National Park in Britain, from mining companies.

  18. 18Sorry I Opened My Mouth

    60 minJun 12, 1972

    Horizon reports on modern research in the prevention of tooth decay.

  19. 19The Way We Move

    60 minJul 3, 1972

    How do muscles contract and how are they are controlled from the brain through nerve fibers are the subjects of this Horizon episode.

  20. 20The Life that Lives on Man

    60 minJul 10, 1972

    This episode of Horizon explores bacteria and other creatures that live on our skin and in our hair.

  21. 21Sex Can Be a Problem

    60 minJul 24, 1972

    In this episode by Horizon, we take a look at sexual problems, particularly for impotence, frigidity, and premature ejaculation.

  22. 22The Surgery of Violence

    60 minJul 31, 1972

    Horizon explores the development and techniques of brain surgery from the 1950's to present-day in Britain and the USA.

  23. 23Hospital, 1922

    60 minOct 12, 1972

    Horizon reconstructs a day in the life of the old Charing Cross Hospital in Britain just fifty years ago.

  24. 24When Polar Bears Swam in the Thames

    60 minOct 19, 1972

    This episode of Horizon looks the how the ice age physically shaped the British landscape.

  25. 25The Making of the English Landscape

    60 minOct 26, 1972

    This episode of Horizon illustrates the ideas of Prof. W.G. Hoskins on the development of the English landscape from Iron Age times to the present.

  26. 26Shadows of Bliss

    60 minNov 2, 1972

    Horizon reports that High Energy Physics shows a pattern of thought that challenges the very roots of commonplace belief.

  27. 27The Billion-Dollar Marsh

    60 minNov 9, 1972

    This episode of Horizon is about the east coast marshes of America, called the "Wetlands" and the effects of urban development on the wildlife.

  28. 28Do You Sincerely Want a Long Life?

    60 minNov 16, 1972

    Horizon investigates the research that is going into the ageing process to find out its causes and possible prevention.

  29. 29The Making of a Natural History Film

    60 minNov 23, 1972

    This epidsode of Horizon reports on how a group of zoologists at Oxford Scientific Films in England makes films.

  30. 30Fire

    60 minNov 30, 1972

    Horizon documents fire prevention, and fire fighting.

  31. 31Alaskan Pipe-Dream

    60 minDec 7, 1972

    This episode of Horizon centers on the exploitation of oil in Alaska, and the effects of it on the Eskimoes and the local wildlife.

  32. 32Their Life in Your Hands

    60 minDec 21, 1972

    Horizon reports on people suffering from kidney diseases and the current forms of treatment.

  33. 33Navigating Europe

    60 minDec 28, 1972

    Horizon documents how in Europe, they are using water canals for industrial transport, as an alternative to roads.