Question

Какое явление наблюдал англиский физик Броун в 1827г.

Answer 1

Броуновское движение. Как раз сейчас это и делаю.

Answer 2

Броуновское движение.

Answer 3

Brownian Motion

In 1827, the English physicist Robert Brown observed a phenomenon known as Brownian motion. Brownian motion refers to the random movement of microscopic particles suspended in a fluid or gas. Brown noticed that pollen grains suspended in water exhibited erratic, irregular movements. This discovery challenged the prevailing belief that particles in a fluid would remain stationary unless acted upon by an external force.

Brownian motion is caused by the constant collisions between the particles and the molecules of the surrounding fluid. These collisions result in the particles being pushed and pulled in random directions, leading to their unpredictable motion. The motion of the particles is influenced by factors such as temperature, viscosity of the fluid, and the size and shape of the particles.

Brownian motion has since been observed in various systems, including colloidal suspensions, gases, and even in the movement of cells and molecules within living organisms. The phenomenon has important applications in fields such as physics, chemistry, biology, and engineering.