Jet engine was simultaneously invented my Germany and Britain. Two inventors came up with the same idea independently. Britain got their patent first, Germany flew first. Honours shared all round.

Top 3 British inventions (in my humble opinion):

*World wide web

*Theory of Evolution

*Newtons laws of Physics

Worst 3 inventions:

*The penny farthing

*The USA

*Concentration camps (Boer war)