Apparently, quite a number of users have been deleted in the last month or so. I've noticed it because, as I haven't been very active lately, my rep score has been declining due to their removed votes.
I saw that 155 users have been deleted in the whole year, so unless they'd been very active in...
Anyone who has lived near a major thoroughfare knows that tire wear creates rubber dust that gets spread around everywhere. In some parts of Los Angeles, the residents have to hose off the sidewalks every day or so in order to prevent that dust from being tracked into their homes. Some of it also...
I see a "review" link on the top of the page, which takes me to a few "review queues".
What is a "review queue"?
What are the various queues for?
What can I do in each queue?
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In the theory of junction conditions, the Riemann tensor in terms of the Heaviside theta function is expressed as follows
$$R^{\alpha}_{\beta\lambda\mu} = \Theta(l)R^{\alpha^{+}}_{\beta\lambda\mu} + \Theta(-l)R^{\alpha^{-}}_{\beta\lambda\mu} + \delta(l)A^{\alpha}_{\beta\lambda\mu}.$$
Now, the tr...
