A complex machine.
A train is not a simple machine.
A fulcrum is a part of a simple machine, the lever. Without the fulcrum what is left of the simple machine can no longer increase the applied force and is no longer a simple machine.
yes a door knod is a simple machine
A spade is a simple mechanical (tool) machine.
Archimedes was a Greek Scholar, not a discovery.
Archimedes was generally considerd to be the great mathmaticians of antiquity he spend his most of the time in Egypt where he invited the machine called Archimedes screw he was born in Greek in 365 BC
A chocolate fountain is an example of a screw - an Archimedes Screw, to be exact.
A set of winding stairs loosely resembles an Archimedes screw.
yes
Simple machines don't measure anything. All six simple machines, invented by Archimedes, are used to make physical work easier.
Archimedes.
discover volume and etc.
yes
No he discovered density
Archimedes was not the one to discover pi. It was discovered before him in vedic period of ancient India.
it was discovered in 1234