Series:

Thumbnail	Title	Series Number	Date	Description
	Earth history		1971	Pentz introduces the idea that the present is the key to the past. To support this view he poses...
			01 August 1971
	Earth history 2		1971	Visit to Ballycastle where there are two rock types, black over white. By the law of superposition...
			08 August 1971
	Science course unit 28		1971	We will be dealing with three topics from the unit, each of them concerning the wave properties of...
			15 August 1971
	Quantum theory		1971	Now in this programme we want to disturb your chemical view of physics. We want to show you waves,...
			22 August 1971
	Science course unit 30		1971	This is a vibrating string which has got a stationary wave on it. There has been a lot of theory in...