6.5 Maths Modelling: Sandcastles. 6.30 Where Has All the Granite Gone? S.55 Water Turbine Design. 7.20 Language: Discourse Analysis. 7.45 The Islands of Hawaii.

Story: The Lonely Skyscraper Written by JENNY HAWKESWORTH
Illustrated by EMANUEL SCHONGUT Presenters
Rosalind Wilson , Ben Thomas
Pianist RICHARD BROWN
Designer CAROLE RICHMOND
Graphic designer TOM BROOKS Photographies BARRY BOXALL Written by TREVOR MCCALLUM Director EVELYN SKINNER Producer ANNE GOBEY
Executive producer CYNTHIA FELGATE

What makes a Bad Girl? This programme looks at how Barbara Bach was cast as Anya in The Spy Who Loved Me.

A BBC/Open University production

helps you plan your weekend by previewing daytime programmes of special interest from the Open University. This week's selection includes A Policeman's Lot and Light, the Destroyer.
Producer SUZANNE CAMPBELL-JONES
A BBC/Open University production

The feature film starring
Tom Conway , Madge Meredith
The Falcon's exploits take him in search of a gang of thieves who are ' manufacturing' diamonds for South American markets. A characteristic mixture of chases, distraught young ladies and dead bodies leads to the climax with the sleuth triumphant.
Screenplay by AUBREY WISBERG Produced by HERMAN SCHLOM Directed by WILLIAM BERKE
Films: page 14

A double helping of cartoon comedy from one of America's greatest animators.
The Good Little Monkeys; A Rainy Day
MGM cartoons

Bob Langley 's companion on another of his Lakeland explorations is countryman, Phil Drabble. Their walk takes them along the side of Ullswater.

with subtitles, followed by Weather

Introduced by Richard Baker
BBC2 joins Radio 3 in stereo at the Royal Albert Hall for a live relay of the first half of tonight's Henry Wood Promenade Concert, the opening of the 89th season. Beethoven Mass in c major Ileana Cotrubas (soprano)
Kathleen Kuhlmann (mezzo-sop) Robert Tear (tenor)
Gwynne Howell (baritone) BBC Singers
BBC Symphony Chorus conductor BRIAN WRIGHT
London Philharmonic Choir conductor RICHARD COOKE
BBC Symphony Orchestra leader BELA DEKANY conductor Sir John Pritchard
Sound GRAHAM HAINES Lighting HARRY THOMAS Executive producer KENNETH OORDEN Director
RODNEY GREENBERC
For the best effect, viewers with stereo Radio 3 should turn off TV sound and position their speakers on either side of the screen, but a few feet away. Stereo headphones are an alternative.
Part 2 is on Radio 3 at 8.40*
(Sunday Night at The Proms beoins on BBC1 on 31 July)
Nicholas Kenyon , Wilfrid Metiers write on The Proms in the LISTENER dated 14 July

The third of six short programmes in which Richard Feynman, Nobel Laureate and Professor of Theoretical Physics at Caltech, California, finds pleasure in thinking about the way the world really is.
This week: How to enjoy a trip to the dentist - by thinking what makes the drill bit go round.

Using examples from everyday life, the eminent scientist explains how electrical and magnetic forces work and reveals how important the discovery of electromagnetism was. (1982) Show more

from Limavady, Northern Ireland Mary Spiller and Geoff Hamilton find themselves in a wonderful garden that's been very carefully planned, but which, as its creator
Doreen Moody describes it, is also a bit of a hotchpotch.
The climate is kind and mud, but the light sandy soil requires special treatment.
Production assistant JEAN LAUGHTON Producer JOHN KENYON BBC Pebble Mill

The popular game of musical knowledge between
Frank Muir with John Amis and Denis Norden with Ian Wallace Questions set by Steve Race
Recorded at the Westminster Theatre Television presentation DOUGLAS HESPE

A series in seven parts Alice
Part 3 by SHANE CONNAUGHTON
Alice's past has many versions. Roebuck tries to unravel them. Perhaps only then can she show her face.
Music by DARYL RUNSWICK
Videotape editor RON BOWMAN Studio lighting ALAN HORNE Designers HUMPHREY JAEGER and PHILIP LINDLEY
Producer RUTH BOSWELL Directed by BARRY DAVIS
* Subtitles on Ceefax page 270

Tonight's performance is the fifth of the preliminary rounds between Noelle Courtis-Bedu (France) Philip Skinner (USA)
Linda Li Sau Lin (Hong Kong) Mari Ffion Wiliams (Wales) with the BBC WELSH SYMPHONY ORCHESTRA leader DESMOND BRADLEY conducted by JAMES LOCKHART Piano accompanist INGRID SURGENOR
Directed by MARI GRIFFITH , ANDREW QUICK and HEFIN OWEN
Produced by VINCENT DOWDALL
Executive producer j. MERVYN WILLIAMS BBC Wales

with JOHN TUSA , PETER SNOW and DONALD MACCORMICK , JOAN BAKEWELL and LINDA ALEXANDER
Producers
PETER BELL , TONY HALL , DAVE STANFORD Directors
MIKE CATHERWOOD , JOHN WILKINSON Assignment editors
NICK GUTHRIE , JOHN MORRELL Deputy editor PAUL NORRIS Editor DAVID LLOYD