Viewing profile — genug

It's a perfectly fine limiting case of G + Λg = 8πT. A minor point: it's "the Newton equation" or "Newton's equation", but not "the Newton's equation" (in the same way that one cou…

Systems like the bullet cluster ( https://en.wikipedia.org/wiki/Bullet_Cluster ) are taken as evidence that most of the matter in large-scale, gravitationally bound astrophysical s…

It's like the old saying: offense is taken, not given.

Seems like an innocuous question. Why is it being downvoted?

> Who cares? Everyone trying to pressure these people into having children, apparently.

There's really no reason to, you know, for the transcription to include every filler word and little, you know, rewording. In fact, it makes the, I think it makes it really hard to…

Oxford University banned a magazine from being distributed in a stall at a freshman orientation fair, which is not nearly as sweeping as the headline suggests.

I don't think there is any connection. But since the submission was titled "covariant and contravariant" without any kind of context, it seemed appropriate that we could all share …

A contravariant object transforms like a vector. A covariant object transforms like the gradient of a scalar.

> the current sub-standard understanding of Best Practice infrastructure > Best Practice has been established. It's ridiculous to try and reinvent the wheel. > It's simple if Paris…

> Or how about this: a break-through that goes beyond classic antibiotics. Something that hasn't been thought of yet. So what should the BBC headline read, then? "We're running out…

We have no experimental evidence that the calculations for gravitational Hawking radiation (or their physical interpretation) are valid. The notion that dumb holes exhibit all the …

120 years ago, people thought that experimental results on wave propagation in continuous media could be used to make statements about wave propagation in electrodynamics. That's h…