| 1 | The author shows how the collision between a Brownian particle and its surrounding molecules lead to the Lagevin equation, and gives us the subtle explanation of damping and stochastic forces. | |
| 2 | Excellent magneto-optical characteristic was obtained: a negative differential magnetic linear dichroism was observed, quite different from the traditional Langevin type of magnetic fluids. | |
| 3 | That work, by a group of researchers at the Institut Laue-Langevin (ILL) and published in a paper in Nature, used slow-moving neutrons falling due to gravity. |