Question

Who was the first to find the movement of pollen grains in water?

Answer 1

1. Robert Brown was the scientist who studied the movement of pollen grains suspended in water through a microscope.
2. Robert Brown used water to suspend exceedingly minute pollen grains.
3. Pollen grains were shown to be traveling fast and irregularly throughout the water.
4. Water is made composed of very small particles that move very quickly. Pollen grains float on the water's surface because they are constantly struck by fast-moving water particles.
5. The phenomenon of irregular movement of the pollen grains rapidly throughout the water is known as the Brownian motion of a particle.
   Brownian motion is the zigzag movement of tiny particles floating in a liquid (or gas).