A couple of verses recalled from the mists of time:

You've all heard of Watt,
The celebrated Scot,
Who was brewing up his coffee after binging-o,
The pot began to steam, Jimmy Watrt began to dream,
And invented the very first steam engine-o.

Then came the train,
Product o' a Scottish brain,
And they buildit a railway to Fyvie-o

......at which point the mists of senility close again.