A monthly series on astronomy
Catching Photons by JAMES RING
Professor of Applied Physics, University of Hull
Astronomers when they use telescopes and photographic plates, are collecting and detecting units of electro-magnetic radiation-photons-from the universe. But conventional techniques are very inefficient: many photons are wasted for every one caught. What can be done to improve this situation?

Programme 3
Script by SIDNEY SALAME
ROLF Richards as Herr Muller ANDREW SACHS as Richard with LILLI DURRA and PETER ZANDER
Produced by W. H. CARLING
+ Monday's broadcast
See page 48 for details of accompanying booklet

Introduced by Roy HAY
Making gardening easier: JACK CARVER reports on some of the new gardening aids in use and also those being developed
Evergreens with a new look: JOHN STREET suggests some attractive and unusual evergreens

Introduced by BILL HARTLEY
Ladies' Day
My M.P.C.: by MRS. PHYL ALLEN , a competitor in the Mobil Economy Run
Under the Bonnet: ANN CLAYTON talks about car maintenance for women
Learning to Drive: advice from Denise McCann. Chairman and Managing Director of a large driving school
Motoring Journalist: VIVIEN BATCHELOR of the Evening Standard talks about her job