" Galilean relativity states that the laws of motion are the same in all inertial frames. Galileo Galilei first described this principle in 1632 in his Dialogue Concerning the Two Chief World Systems using the example of a ship travelling at constant velocity, without rocking, on a smooth sea; any observer doing experiments below the deck would not be able to tell whether the ship was moving or "IMPORTANT historical fact *** GALLILEO DIDn't understand WHAT IT IS PRESSURE
Mr Galileo 1632
Mr Pascal 1650
( 20 years after Gallileo ) ***
THEY DIDN't spoke by INTERNET OR physics journal MAROSZ's METHOD and PROBLEM THAT I FOUND
( RIGHT NOW 400 years after Gallileo -
Pressure is teling Engineers about STRESS inside material !
[MPa it is ( Newton / mm^2 ) ] ) GRAVITATION IT IS NOT ACCELERATION !
please study that ROCKET IS TOWING ROPE ann Mass M