From the fridge to penicillin, here we take a look at some brilliant inventions by Scots that changed the world.
Perhaps one of Scotland's most famous inventors, Alexander Graham Bell is best known for producing the world's first telephone in 1876, at just 29 years old .
An invention that has saved thousands of lives, penicillin was discovered by Sir Alexander Fleming in 1928, a scientist born in Darvel, East Ayrshire.
Kirkpatrick Macmillan from Dumfriesshire is often credited as the inventor of the first pedal bicycle in 1839. He never patented the idea and Gavin Dalzell of Lesmahagow copied it in 1846.
4. Bank of England
Despite the name, it was a Scot - banking mogul and trader Sir William Paterson - who first pitched the idea of the Bank Of England.