Nova

1Season 12
2Season 12

S12.E2 ∙ Global Village

Tue, Jan 22, 1985

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3Season 12

S12.E3 ∙ Conquest of the Parasites

Tue, Jan 29, 1985

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4Season 12

S12.E4 ∙ In the Land of the Polar Bears

Tue, Feb 5, 1985

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5Season 12

S12.E5 ∙ AIDS: Chapter One

Tue, Feb 12, 1985

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6Season 12

S12.E6 ∙ The Shape of Things

Tue, Feb 19, 1985

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7Season 12

S12.E7 ∙ Baby Talk

Tue, Feb 26, 1985

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8Season 12

S12.E8 ∙ The Mathematical Mystery Tour

Tue, Mar 5, 1985

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9Season 12
10Season 12

S12.E10 ∙ Monarch of the Mountains

Tue, Mar 19, 1985

Wildlife documentary about the Wyoming Rockies elk, following their migrations for a full year.

11Season 12

S12.E11 ∙ The National Science Test II

Tue, Oct 8, 1985

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12Season 12

S12.E12 ∙ Seeds of Tomorrow

Tue, Oct 15, 1985

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13Season 12

S12.E13 ∙ What Einstein Never Knew

Tue, Oct 22, 1985

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14Season 12

S12.E14 ∙ The Robot Revolution?

Tue, Oct 29, 1985

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15Season 12

S12.E15 ∙ The Magic of Special Effects

Tue, Nov 5, 1985

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16Season 12
17Season 12

S12.E17 ∙ Tornado!

Tue, Nov 19, 1985

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18Season 12

S12.E18 ∙ The Genetic Gamble

Tue, Nov 26, 1985

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19Season 12

S12.E19 ∙ Animal Architects

Tue, Dec 3, 1985

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20Season 12

S12.E20 ∙ The Plane that Changed the World

Tue, Dec 17, 1985

This episode describes the history of the DC-3 aircraft. It follows its genesis as a passenger plane and shows current, as of filming in 1985, users of the plane, from cargo to short hop passenger service. It also shows interviews with people who were involved in the plane's design. The producers talk to designers of the DC-3 and its predecessors in the 1930s. Also, a test pilot is interviewed talking about the plane succeeding in passing a test of crossing the Rockies with one engine turned off. The producers also talk to stewardesses from American Airlines who flew in the aircraft during the 1930s, and described the meals served. They also visit Basler Airlines, who restore DC-3s to flying condtion for various customers. They visit Salair in Alaska, who used the planes for shipping freshly caught fish to Anchorage from remote coastal villages, and remark about how the DC-3s ability to operate from short rough airstrips make it ideal for the job. They conclude with PBA airlines, a commuter service in Boston, that used the DC-3 for service to the islands off New England, and the pilot of one plane, which was the oldest DC-3 still in service at the time of filming, said it was a plane one needed to fly all the way to the gate, since it was at the mercy of winds and jet wash.