The Corby trouser press
Too many "convenience" devices. I'd say the aeroplane but it just misses the time line.
Strictly speaking, are they not medical discoveries?Antibiotics and the advances in vaccines.
Yeah medical ones , that'll learn ya !Strictly speaking, are they not medical discoveries?
The plastic bag.
All these electronic and computing ones basically simplify down to the invention of the transistor.
How many valves can you fit on a silicon chip?Just checked and it seems it's predecessor, the thermionic valve just makes it into the 20th century. I doubt we'd have transistors if not for the valve.
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