haushofer's latest activity

Good afternoon, This is not Paul, but rather his son Robert. I am very sad to write here that my dad passed away on Saturday...

This is basically what you're asking: https://arxiv.org/pdf/cond-mat/0101157 A global momentum measurement of the screen only yields...

If I understand you correctly: wouldn't that mean that your version of the Kruskal metric still has a coordinate singularity at r=2M...

It's sure been a wild ride this year! Between some AI missteps and breaking LaTeX for a good portion of the year (at least we got dark...

I’m a retired ex physicist I guess. Although I have a first degree in theoretical physics and did post graduate studies ( structural...

Ah, the one book, from the one author. My favourite.

Theoretical physicist C.N. Yang died at the age of 103 years on October 18, 2025. He is the Yang in Yang-Mills theory, which he and his...

Maybe I'm a bit dumb, but you have to be a bit more specific if you want to receive help. Personally I can't make anything out of this...

I broadly agree. Perhaps this is one of the great things about studying mathematics. That you learn to think in terms of the...

Never mind, solved it. This was serious confusion :-p

I guess my confusion is this: why would the hotter sphere cool down a bit by absorbing radiation from the colder sphere?

I think every teacher knows that words are really important in physics. Physics is also about interpretation, or "ontology", or...

Physists of the past have been brilliant at describing nature using math, but terrible at choosing the right words for it. Both naming...

My 2 cents: if you're being pushed in your chair because the train accelerates, it's a frame-independent fact that an engine makes the...

@kuruman I only see now your comment about absorption, emission and minus signs. But isn't the whole point that if (say) sphere 1...