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Temporada 30
Fecha de emisión
Sept 27, 1989
Season premiere: History of rubber. Includes its cultivation from wild trees.
Season premiere: History of rubber. Includes its cultivation from wild trees.
Fecha de emisión
Oct 04, 1989
A look at the human sense of balance; the Toronto Island Public and Natural Science School.
A look at the human sense of balance; the Toronto Island Public and Natural Science School.
Fecha de emisión
Oct 11, 1989
This episode has no summary.
This episode has no summary.
Fecha de emisión
Oct 25, 1989
This episode has no summary.
This episode has no summary.
Fecha de emisión
Nov 15, 1989
Report on the problems of air traffic at airports in Toronto and Atlanta and about the fixes that require it.
Report on the problems of air traffic at airports in Toronto and Atlanta and about the fixes that require it.
Fecha de emisión
Nov 22, 1989
Researchers struggle to protect a reserve for peregrine falcons; the milkweed plant is part of a complex living network.
Researchers struggle to protect a reserve for peregrine falcons; the milkweed plant is part of a complex living network.
Fecha de emisión
Dic 06, 1989
The conservation of rare breeds of farm animals, and the feeding behaviour of the phalarope, an unusual shorebird.
The conservation of rare breeds of farm animals, and the feeding behaviour of the phalarope, an unusual shorebird.
Fecha de emisión
Dic 13, 1989
Folder on two paper mills in British Columbia that pollute with impunity Howe Sound a few kilometers north of Vancouver.
Folder on two paper mills in British Columbia that pollute with impunity Howe Sound a few kilometers north of Vancouver.
Fecha de emisión
Dic 19, 1989
This episode has no summary.
This episode has no summary.
Fecha de emisión
Dic 26, 1989
To be confirmed
To be confirmed
Fecha de emisión
Ene 03, 1990
The human invests a lot in the war games, such as poker or other more elaborate games. Mathematical analysis of these games allowed
the discovery of elements that could help resolve quickly armed conflict.
The human invests a lot in the war games, such as poker or other more elaborate games. Mathematical analysis of these games allowed
the discovery of elements that could help resolve quickly armed conflict.
Fecha de emisión
Ene 17, 1990
This episode has no summary.
This episode has no summary.
Fecha de emisión
Feb 07, 1990
This episode has no summary.
This episode has no summary.
Fecha de emisión
Feb 21, 1990
This episode has no summary.
This episode has no summary.
Fecha de emisión
Mar 14, 1990
Host David Suzuki and narrator Angela Fusco present this program on the deterioration of paper in old books around the world. At least one-third of the world's books are turning into
.. show full overview
Host David Suzuki and narrator Angela Fusco present this program on the deterioration of paper in old books around the world. At least one-third of the world's books are turning into particles and dust as they become embrittled. This program describes various methods of book preservation, including re-binding, photocopying, de-acidification and creating micro-fiche copies.
Fecha de emisión
Mar 21, 1990
This episode has no summary.
This episode has no summary.
Fecha de emisión
Mar 28, 1990
This episode has no summary.
This episode has no summary.
Fecha de emisión
Jun 20, 1990
The Arctic National Wildlife Refuge, a wilderness against the Canada/U.S. border that is the calving grounds of caribou, is threatened by the U.S. Department of the Interior's plans to develop the land for oil
The Arctic National Wildlife Refuge, a wilderness against the Canada/U.S. border that is the calving grounds of caribou, is threatened by the U.S. Department of the Interior's plans to develop the land for oil
Fecha de emisión
Ago 01, 1990
The reasons behind the impending extinction of the black rhino are explored
The reasons behind the impending extinction of the black rhino are explored
Fecha de emisión
Sept 05, 1990
Film clips from three decades reflect changing views of the world.
Film clips from three decades reflect changing views of the world.
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