In 1847 the inventor Charles Babbage drew up the plans for the world's first functioning modern computer. Almost 150 years later in 1989 the British Science Museum spent two years to construct a working model from Babbage's original drawings that still works today. And is a beautiful marvel of precision engineering.
[ame=http://www.youtube.com/watch?v=KBuJqUfO4-w]Charles Babbage and his Difference Engine #2 - YouTube[/ame]
[ame=http://www.youtube.com/watch?v=KBuJqUfO4-w]Charles Babbage and his Difference Engine #2 - YouTube[/ame]