Tập
NOVA: Episode 11
Tóm tắt
In the winter of 1976-77, 80 percent of the wolf population in Northwest Alaska was the target of aerial hunts. Although the area is roamed by the Western Arctic caribou herds—a natural predator of the wolf—the caribou population has been steadily decreasing in number. NOVA examines how the Dept. of Fish and Game is handling the the problem of wolf control.
Chi tiết
- Phim bộ
- NOVA
- Mùa
- Mùa 4
- Tập
- Tập 11
- Ngày phát sóng
- 1977-03-30
- Thời lượng
- 55 min
Thông tin tập
Episode 11 là tập 11 trong Season 4 của NOVA. Tập này phát sóng ngày 1977-03-30. Thời lượng là 55 min.
Tập trước / tập sau
Tập 10
NOVA investigates the controversial theory of Harvard University biologist E.O. Wilson, that many aspects of human behavior are genetically determined.
Tập 12
Solar energy is increasingly popular as a home heating source. But only recently has it been seriously considered as a source of industrial power. NOVA looks at this new industrial approach, such as the use of a huge windmill in Ohio, giant machines that may generate electricity from the heat of the tropical seas or from the motion of waves, and an orbiting solar power station able to beam microwaves to earth.
Các tập khác trong mùa này
Tập 9
NOVA explores the history of genetic engineering and the possible risks and benefits of this area of research
Tập 13
NOVA explores the huge international illegal trade in animals, penetrates the thriving underworld of smugglers and assesses the effects on vanishing wildlife.
Tập 8
NOVA profiles chemist Russell Marker who made the birth control pill possible by discovering a synthetic substitute for the hormone progesterone.
Tập 14
NOVA traces 300 years of speculation, investigation and discovery that have centered on Mars—particularly the theory that the planet could support life. Questions raised by NASA's 1976 Viking mariner missions about how the vast canyons were formed are also explored.
Tập 7
NOVA looks at blackbirds, their winter habit of nesting in the millions, and the destruction they do to crops.
Tập 15
In part one of this two-part exploration of the diversity of world languages, NOVA examines how and why the bewildering confusion of languages came about.
Tập 6
NOVA recreates March 1975 at Brown's Ferry, an Alabama nuclear power plant—the largest in the world—that suffered a seven-hour fire which came very close to developing into a major public disaster.
Tập 16
In part two of this two-part series on the diversity of language, NOVA explores how man has coped with the confusion of language and asks if the growing acceptance of English is the answer.
Tập 5
NOVA follows the lives of three boys who have combined immuned deficiency—a disease that leaves its victims with no immune system.
Tập 17
NOVA profiles Linus Pauling—the only person to have received two unshared Nobel Prizes for his work in nuclear weapons.