The explanation of brownian motion

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SUMMARY

Brownian motion is a phenomenon resulting from thermal molecular motion in a liquid environment, as established by Einstein in his 1905 paper. Suspended particles experience random bombardment from surrounding molecules, leading to uneven impacts that cause the particles to move in small, erratic jumps. This motion is particularly pronounced in very small particles due to the asymmetrical force exerted by the liquid molecules. The discussion emphasizes the importance of understanding the Langevin equation to further explore the mechanics behind Brownian motion.

PREREQUISITES
  • Understanding of thermal molecular motion
  • Familiarity with Einstein's 1905 paper on Brownian motion
  • Knowledge of the Langevin equation
  • Basic principles of particle dynamics in fluids
NEXT STEPS
  • Research the Langevin equation and its applications in statistical mechanics
  • Explore Einstein's 1905 paper on Brownian motion for historical context
  • Study the impact of particle size on Brownian motion
  • Investigate experimental methods to observe Brownian motion in laboratory settings
USEFUL FOR

Students of physics, researchers in statistical mechanics, and anyone interested in the dynamics of particles in fluids will benefit from this discussion on Brownian motion.

Misr
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http://xanadu.math.utah.edu/java/brownianmotion/1/

"In my way of thinking the phenomenon is a result of thermal molecular motion in the liquid environment (of the particles)." This is indeed the case. A suspended particle is constantly and randomly bombarded from all sides by molecules of the liquid. If the particle is very small, the hits it takes from one side will be stronger than the bumps from other side, causing it to jump. These small random jumps are what make up Brownian motion.
I can't imagine
 
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It happens to be correct. Einstein first described this in one of his famous 1905 papers.
 
okay,I still can't imagine
the phenomenon is a result of thermal molecular motion in the liquid environment (of the particles)." This is indeed the case. A suspended particle is constantly and randomly bombarded from all sides by molecules of the liquid. If the particle is very small, the hits it takes from one side will be stronger than the bumps from other side, causing it to jump
 
What can't you imagine? And please don't repeat the same quoted text again.
 
Misr said:
okay,I still can't imagine

It's similar to the board/tabletop game Crossfire: http://en.wikipedia.org/wiki/Crossfire_(board_game )

The molecules and atoms impact the object at random intervals. This leads to small motions as the object is hit more on one side than the other in a short period of time.
 
Last edited by a moderator:
google "Langevin equation"
 
Okay, you've stated a fact - that you can't imagine. I guess this thread is done. Commencing lockage... 10...9...

Unless you had a question you wanted to ask.
 

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