How is it applied in the modern day.

There are still some uses of Achimedes principle. Essentially applying buoyancy.

Ship, hot air ballon, submarine, Research instrumentation like hydrometer & deep wave measuring platform.

Of course the knowledge is upgraded somewhat. Because the good old Achimedes probably didn't know much about surface tension of fluids or complex fluids like emulsions or foaming fluids where the principle doesn't hold often.


For his time, he was a genius. Especially his other inventions like the famous screw and lever that changed water transfer and buiding structures like bridges.

The combined harvester still uses the screw technology today.