Jelaskan Sajarah gerak Brown dari Gerak Brown dalam bahasa sunda

Gerak Brown kapanggih ku ahli biologi Robert Brown taun 1827. The story goes that Brown was studying pollen particles floating in water under the

microscope, and he observed minute particles within vacuoles in the pollen grains executing the jittery motion that now béars his name. By doing the same with particles of dust, he was able to rule out that the motion was due to pollen being "alive", but it remained to explain the origin of the motion. Nu pangheulana méré téori ngeunaan gerak Brown taya lian ti Albert Einstein taun 1905.

At that time the atomic nature of matter was still a controversial idéa. Einstein observed that, if the kinetic theory of

fluids was right, then the molecules of water would move at random and so a small particle would receive a random

number of impacts of random strength and from random directions in any short period of time. This random bombardment by

the molecules of the fluid would cause a sufficiently small particle to move in exactly the way described by Brown.