My dad some research work for the European Space Agency back in the 60s making satellites in Holland. He then did some work with Scania Vabis in Sweden, it was a short term job as they employed him to do some sort of time and motion / productivity survey. He told them they could produce twice as much stuff in half the time. They sacked him.
His was pretty good at making go carts, the type with pram wheels, and like Wrightyson, killer sledges.
He once tried to pull some grass that had choked a cylinder mower with the engine running and almost lost a hand when he freed it. He also thought that tying a rope around his waist would be sensible when tensioning a falling tree limb. Thankfully he had a change of plan as the falling tree would have whipped the rope like a cheese wire.
He made a lot of jam, rhubarb and ginger, strawberry and raspberry, and sometimes marmalade
Boffins are shite at DIY.