Horizon - 1991
Run Time: 60 mins
Air Date: Mon, 7 Jan 1991
Average Rating: ⭐ 7.4 (33 votes)
BBC Two23 Episodes
Sudden Death
Season 28 - Episode 1
Documentary considering the nature of sudden death, the effects of coronary heart disease and the part they play.
Keen as Mustard
Season 28 - Episode 2
This Horizon episode tells the story of the top secret experiments carried out to test the effects of mustard gas.
Smokers Can Harm Your Health
Season 28 - Episode 3
Horizon investigates the case against passive smoking and reveals new evidence of its danger.
Coming In from the Cold
Season 28 - Episode 4
Horizon reports on the new arms verification industry emerging due to the new arms control treaties.
Small Problems with the Mirror
Season 28 - Episode 5
Horizon follows astronomer's efforts to rescue the Hubble space telescope and restore its original planned performance.
Two Weeks to Save the Earth
Season 28 - Episode 6
Looks at the work of Earthwatch, and some of the many people who spend their holidays contributing to learning about the planet by helping o...
California Dreaming
Season 28 - Episode 7
This Horizon documentary presents the US auto industry's response to clean-up the air in Los Angeles, California by the year 2007.
The Day the Earth Melted
Season 28 - Episode 8
This episode of Horizon examines 20 years of research which has led to a new theory on how the earth's crust was made.
The Curse of Karash
Season 28 - Episode 9
Looks at the phenomenon of the outbreaks of a lethal kidney disease amongst groups of people scattered around an area of the Balkans, coveri...
Playing at Noah
Season 28 - Episode 10
This Horizon interview presents Dr. Ulysses Seal who believes the "frozen zoo" concept is the best way to save vanishing species for the fut...
Cashing in on Paradise
Season 28 - Episode 11
This Horizon episode considers the pros and cons of "ecotourism" and the effects of tourism on the environment. The coral reefs of areas of ...
The Terracotta Time Machine
Season 28 - Episode 12
This episode of Horizon explores the Natural History Museum and its philosophy, both past and present. We look at some of the recent innovat...
Measuring the Roof of the World
Season 28 - Episode 13
Horizon examines the problems and cartography involved in mapping mountains such as Mount Everest. They follow the history of of mapping fro...
The First Americans
Season 28 - Episode 14
Horizon looks at archaeologist's new theories surrounding the population of the New World over 11,000 years ago
Inside Chernobyl's Sarcophagus
Season 28 - Episode 15
Documentary following the clean-up operation at Chernobyl and the elite team of Soviet scientists working in areas of radiation that would b...
Colonising Cyberspace
Season 28 - Episode 16
Horizon presents a documentary on how virtual reality can make humans feel as if they are present in the computer simulated artificial world...
Emerging Viruses
Season 28 - Episode 17
In this report, Horizon follows a group of eminent scientists who believe we have become too complacent about infectious diseases.
Camelford - A Bitter Aftertaste
Season 28 - Episode 18
Horizon explores the Camelford disaster, in which aluminium sulphate was accidentally added to drinking water in Cornwall in 1988.
Of Big Bangs, Stick Men and Galactic Holes
Season 28 - Episode 19
Several astronomers and scientists explore the concepts of "hot/cold dark space" and whether or not the "Big Bang" theory is actually correc...
Food For Thought
Season 28 - Episode 20
This story by Horizon looks at the expanding and controversial area of "smart drugs".
The Long Road to the West
Season 28 - Episode 21
In this Horizon episode, we look at the problems facing the Carl Zeiss optics company of Jena and other companies in the scientific sector o...
Half Hearted About Semi-Skimmed
Season 28 - Episode 22
Horizon examines the social and scientific issues around the cholesterol debate.
T-Rex Exposed
Season 28 - Episode 23
Considers some of the different theories surrounding the Tyrannosaurus Rex dinosaur, and other members of the same family, and shows how cal...