Mike Skaug mikeskaug

A simulation of polymer dynamics using d3.

The physics are not quite right, namely the bond lengths should be much more rigid, but it illustrates the basic physical picture of random thermal fluctuations in the polymer chain.

Simulation of a simple two dimensional Gaussian random walk. Random walks are used to model and understand many physical phenomena such as the movement of molecules through our bodies, the spread of contaminants underground and the fluctuation of stock prices.

Simulation of particles immersed in fluid at some temperature, using the d3-force physics engine.

This is was inspired by this block.

The velocities of the fluid particles are drawn from the Maxwell-Boltzman velocity distribution and scale with temperature like sqrt(T).

This illustrates the origin of Brownian motion, which is the random motion of particles suspended in a fluid due to collisions with the fast moving fluid particles or molecules.