January 15, 2004 • 1h
There would be no guns without gunpowder, the volatile mixture of saltpetre (potassium nitrate), charcoal and sulphur that came to...Read more
January 22, 2004 • 1h
In Victorian times 'computers' were people who added up rows of figures. Now they are mechanical wonders - without them we couldn...Read more
January 29, 2004 • 1h
When Sir Frank Whittle was developing his revolutionary jet engines during the 1940s, he needed robust but lightweight airframes t...Read more
February 6, 2004 • 1h
At the time of Alexander Graham Bell and Thomas Watson's first successful telephone transmission in 1875, the only wires strong en...Read more
February 12, 2004 • 1h
Television would never have developed without the cathode ray tube (CRT). It was invented by a German, Karl Ferdinand Braun, in 18...Read more