First transmitted in 1964, Horizon profiles Buckminster Fuller, the inventor of the geodesic dome.

First transmitted in 1964, it took physicists at Brookhaven, Long Island, New York, two years and 97,025 photographs before they successfully identified a predicted new particle, which has a unique characteristic known as 'strangeness minus three'. Contributing physicists include Murray Gell-Mann, Yuval Ne'eman and Richard Feynman.

First transmitted in 1966, Horizon reports from the spacecraft centre in Houston, Texas, about the experiences of the astronaut; how he reacts to being in space, and the stresses of launching and re-entry.

In Britain the crime of murder, the most serious of crimes, leads to the most serious punishment. The investigation of murder and the presentation of evidence always demands the utmost care in proving a man's guilt `beyond all reasonable doubt' for his liberty will depend on it. The certainty and ingenuity of science is helping more and more to establish the outcome of a case.

First transmitted in 1973, Horizon reports on deafness in Britain today, including the education of deaf children, the provision of aids for the deaf, and the dangers of noise induced deafness.

First transmitted in 1975, Horizon investigates the growing tendency in hospitals to induce childbirth by injecting hormones into mothers. The practice has become increasingly widespread in recent years and this film asks if induction is desirable, necessary and safe.