6.15 Pure Maths: Fourier Coefficients
6.40 Maths Methods: Heat Transfer
7.05 Maths: Iteration and Convergence
7.30 American History - Development of the Gun Industry 7.55 A Question of Balance?: Learning at Work
8.20 Understanding Modem Societies: the West and the Rest 8.45 Surviving the Exam

Competition: [number removed] (max call costs 20p). For a copy of the rules, send sae to: BBC Audiocall, [address removed]

Written by Valerie Georgeson , from a story by Margaret Stuart Barry
Rpt Stereo

Schools' film and video quiz. With guest Tony Blackburn.

Team games.

Written by Margaret Simpson

False or true? A fast-moving mix of fact and fiction.

Competition: [number removed] (false), [number removed] (true). (Max call costs 20p.) For a copy of the rules, send sae to: [address removed]

See this week page 18

Music news.

Highlights of the Pacific Grand Prix from Aida, Japan, in the second round of this year's world championship.

Coverage of the decisive second session from the Crucible, Sheffield.
Including action from the matches between
Jimmy White and Billy Snaddon , and John Parrott and Drew
Henry. With David Vine.

Featuring Durham v Yorkshire in the CIS County Championship final, and the Swalec Cup semi-finals from Wales.
Commentary Nigel Starmer -Smith. Introduced by Chris Rea. Executive producer Johnnie Watherston

Five years after a murder had been committed, Cambridge University forensic scientist Dr Zakaria Erzinclioglu dated the crime with the help of a single fly. In tonight's film he reveals some extraordinary collaborations between human and animal detectives.
The life cycle of the blowfly, which lives and feeds on a corpse, follows such a precise pattern that it can pinpoint the time of death, and time-lapse photography reveals them at their grim work. A finger bone and wedding ring have been found in a mouse's burrow, and birds collect hair from a corpse dumped in the woods to build their nests - hair which can be used to identify the victim. As coyotes attack and scatter human remains, the marks left by their teeth add to the story of what happened.
In Britain and America, scientists demonstrate the ways in which animals, insects - and plants, like the seeds on a blanket that trapped a rapist - help in their work.
The animal detectives: Doctor Zac's casebook

Highlights of today's race, run over 26 miles from Greenwich
Park to the Mall.

Part three of the documentary experiment in understanding the fascinating first year of child development.
The Second Month. At six weeks babies cry the most and experience their greatest difficulty sleeping. The experts disagree on why this should be, but it causes the families much anxiety and stress.
Producers Bemice Daly and Emma Read Executive producer Edward Goldwyn
A Goldwyn Associates production for BBCtv

Highlights of the Pacific Grand Prix from Aida, Japan.

Not only are they a girl's best friend but the _ advertisers tell us they're for ever. The many facets of diamonds are the subject of this two-part documentary.
The first film explores the history of the lucrative diamond industry and the remarkably successful DeBeers cartel at the heart of it. DeBeers control most of the output of Africa's gem-diamond-rich fields and their organisation is so efficient that they successfully turned stocks of smaller stones to their advantage by launching a new product - the eternity ring.
The Diamond Empire investigates one of the most durable business monopolies in history and asks if diamonds are as rare as they appear. How long will it be before the industry loses its lustre?
Director Gavin McFadyen Producer Laurie Flynn

Starring Whoopi Goldberg, Leleti Khumalo

This highly acclaimed film, based on the Broadway musical and filmed in Soweto, tells the story of the role played by children in forging the new South Africa.
(1992)
Barry Norman page 46

Highlights of today's matches.