This is the profile for member Leo Liu. This page shows details about Leo Liu like postings stats, latest posts, trophies won and interests.
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• It is so dark here. Did you bring a flashlight?
Yes. Here it is:
\begin{aligned} \nabla \cdot \mathbf E &= \frac \rho {\epsilon_0}\\ \nabla \cdot\mathbf B &= 0\\ \nabla \times \mathbf E &= -\frac{\partial \mathbf B}{\partial t}\\ \nabla \times \mathbf B &= \mu_0 \left( \mathbf J + \epsilon_0 \frac{\partial \mathbf E}{\partial t} \right)\end{aligned}
But I still can't see anything!
The light is in infrared, dummy.
$$\frac{\partial L}{\partial q}-\frac{d}{dt} \frac{\partial L}{\partial \dot q}=0$$
When nature becomes lazy...
LCSphysicist and etotheipi