Season 5

No overview available for this episode.

No overview available for this episode.

The problem of survival in extreme climatic conditions is examined by Dr. William Whitehead.

Discussion and demonstration of "accidental" scientific discoveries.[37]

Lister Sinclair looks at the artificial flight techniques of man and some of the principles of flying used by other species.

No overview available for this episode.

No overview available for this episode.

Professors Patterson Hume and Donald Ivey dispute Mark Twain's claim that: "There are lies, damn lies and statistics"; or in other words, "you can prove anything with statistics."

Dr. Walter Clark of the Eastman-Kodak Research Laboratory, and host Lester Sinclair explain what happens after you push the button of your camera.

At one time, collisions between aircraft and birds usually hurt only the birds. Now, with aircraft flying at supersonic speeds, the impact of collisions is greater. And birds ingested into the engines have caused a number of crashes. The Nature of Things looks at what is being done to eliminate bird strikes on aircraft.

For the first time ever on television, part of the remarkable "pacemaker" heart operation is shown being performed at the Toronto General Hospital.