Motor Sport - World Speedway Championship Final - Peter Craven - Wembley stadium
Holding his 500 winner's cheque is Peter Craven (far right), of United Kingdom, straddles a tractor at the Empire Stadium, Wembley, London, after winning the World Speedway Championship final. Behind him, with their plaques, are Barry Briggs (centre), of New Zealand and Southampton, who took the second prize of 200, and Ove Fundin (l), of Sweden, who was third and received a prize of 100. Driving the tractor is comedian Norman Wisdom, who presented the awards.
Tornado moving over rural land creating a large debris cloud. A tornado is a violent rotating column of air characterised by a funnel-shaped cloud that forms within thunderstorms. They can measure up to 100 metres in diameter, contain winds moving at over 500 kilometres an hour, and cause widespread devastation. Tornadoes are most common in the mid-west USA. Photographed in Kansas, USA.
© Eric Nguyen/Science Photo Library
Caterpillar track steam engine by R. Hornsby & Sons
The first and original 'Caterpillar' or 'walking' engine made by R. Hornsby & Sons of Grantham. R. Hornsby & Sons grew into a major manufacturer of agricultural machinery, at their Spittle Gate Works. The firm went on to produce steam engines used to drive threshing machines and other equipment such as traction engines; their portable steam engine was one of their most important products and the market leader. Later a chain-track was added to an oil-engined tractor: the caterpillar track; these were developed and patented by Hornsby's chief engineer (and managing director), David Roberts, from July 1904. These were first used on tractors which served with the British Army towing artillery from 1910, but were later fitted to tanks which were used in the First World War from 1916. In 1909, a development model called the Little Caterpillar was demonstrated to the War Office. The army officers present at the demonstration believed it would frighten the horses!
© Mary Evans Picture Library 2015 - https://copyrighthub.org/s0/hub1/creation/maryevans/MaryEvansPictureID/10282530