Major scientific discoveries from the 18th century include hydrogen by Henry Cavendish; from the 20th century penicillin by Alexander Fleming, and the structure of DNA, by Francis Crick and others. Famous British engineers and inventors of the Industrial Revolution include James Watt, George Stephenson, Richard Arkwright, Robert Stephenson and Isambard Kingdom Brunel. Other major engineering projects and applications by people from the UK include the steam locomotive, developed by Richard Trevithick and Andrew Vivian; from the 19th century the electric motor by Michael Faraday, the first computer designed by Charles Babbage, the first commercial electrical telegraph by William Fothergill Cooke and Charles Wheatstone, the incandescent light bulb by Joseph Swan, and the first practical telephone, patented by Alexander Graham Bell; and in the 20th century the world's first working television system by John Logie Baird and others, the jet engine by Frank Whittle, the basis of the modern computer by Alan Turing, and the World Wide Web by Tim Berners-Lee.