Browse clips

Thumbnail	Title	Description	Date
	Galileo's inclined plane experiment	The main steps of Galileo's inclined plane experiment are described. The experiment was used to...	10 January 1971
	Introduction to Unit 17 of S100	Stephen Hurry gives an introduction to Unit 17 of S100 which is about mitosis in living cells.	16 May 1971
	Time-lapse photography showing mitosis	Time-lapse photography is used to show the different stages and characteristic features of one...	16 May 1971
	Cell division stages and characteristics	The whole sequence of the divison cycle is broken down into a series of arbitrary stages. Each of...	16 May 1971
	A demonstration of the experimental methodology used to perform the transformation experiment	This transformation experiment re-creates one of the crucial experiments which proves that DNA...	16 May 1971
	The effect of selection on natural populations	Dr Holmes explains how the frequency in a population of a mutant gene with selective advantage is...	30 May 1971
	Success in evolutionary terms	Dr Varley explains how success in evolutionary terms means passing on of an individual's genes to...	30 May 1971
	Artificial selection	Dr Sidnie Manton talks about how a new breed (variety) of cat with long fur but the Siamese colour...	30 May 1971
	Examining a coastal environment to understand geological processes	Professor Pentz gives an explanation of how we can find out how rocks were made by studying what is...	25 July 1971
	Grain size measurements of sand taken from different areas of a beach	The process of measuring sand grain sizes to determine the size distribution differences between...	25 July 1971
	The nature of P and S waves	A physical demonstration of the nature of P and S waves is followed by a discussion and...	28 June 1971
	What is a laboratory?	Professor Pentz discusses 'What is a laboratory?' and considers the differences between an...	10 January 1971
	Comparing the modern and historical research scientist	The situation of the modern research scientist is compared with that of Galileo and how, even now,...	10 January 1971
	Simulation of a solid using steel ball-bearings	In this demonstration oily steel ball-bearings are used as a simple mechanical simulator for a solid.	06 February 1972
	A simulation of the movement of molecules in a melting solid	A film sequence showing how a regular array of steel ball-bearings breaks up as the tray containing...	06 February 1972
	A simulation of liquid diffusion	White balls are added to a tray of ball bearings while it is being agitated. This models the liquid...	06 February 1972
	A demonstration of the diffusion of a gas (bromine)	Dr Walton demonstrates how fast the diffusion process occurs in a gas compared to a liquid.	06 February 1972
	The types of energy that hold molecules together	An explanation by Professor Elliott of how kinetic energy and binding energy hold molecules together.	06 February 1972
	A demonstration of Brownian motion	The random movement of pollen grains in a suspension as seen through a microscope is shown. The...	06 February 1972