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Top 10 Scotland by Alastair Scott

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Scottish Inventions

1. Rotative Steam Engine: James Watt (1736–1819)

While repairing a working model of a steam engine, Watt noticed deficiencies in its operation and hit upon a way to increase its efficiency threefold. His greatly improved engine had radical consequences for mechanical transport and industrialization.

2. Tar Road Surfacing: John McAdam (1756–1836)

Having made a fortune in New York, McAdam returned to his native Ayrshire in 1783 and began experimenting with crushed stones and tar. The endeavour cost him his fortune, but Parliament eventually remunerated him and made him Surveyor-General of Metropolitan Roads in 1825.

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