Loads of it. This is known as an optimal solution.
So, for example, the trenching tool issued to my father in the second world war is indistinguishable from those used today. And very little different from those issued to Roman legionaries 2000 years ago.
The Cold Chisel, or Bolster, has changed little since medieval times, even down to the shockproof sleeve on the shaft. OK for the last 60years those have been polythene, rather than leather, but that’s hardly a staggering alteration.
But it’s a good example. Optimised things do actually change very slowly because materials or manufacturing techniques roll on. But the basic form is unaltered.
Coaxial cable, chain link fencing, the rails on railways, liferings, emergency flares, boots and shoes, telescopic fruit pickers, grand pianos, folding boxwood rules, dustpan and brush sets, globe or gate valves, extending ladders, kilner jars, immersion heaters, the nozzles on petrol pumps, fired clay bricks, buckets, dental impliments, sectional market stalls, automatic door closers, ring spanners, dog leads, walking sticks, magnetic compasses — are all optimised.
This is a thing called a Lewis, or Lewison. It is used for lifting stone blocks. It is unchanged for at least 2000 years. In fact, I suspect the name has changed more than the design.
Update:: a number of people have asked how the Lewis works. Since Quora does not work well with youtube, let’s try TikTok instead: