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visits member for 2 years, 7 months
seen Dec 11 '13 at 17:03

Jun
4
comment Adding 3 electron spins
@qoqosz: That comment is quite unhelpful. Read the whole question where I already write some objections, that puzzled other theorists who thought "it is straighforward".
Jun
4
awarded  Nice Question
Jun
3
asked Adding 3 electron spins
Jun
3
awarded  Teacher
Jun
2
comment Deriving Statistical Mechanics laws from Quantum Mechanics?
True, that's what I meant by "presuppositions". You can apply the methods of statmech to anything where (micro)states have equal probability. Entropy laws follow from that. You could equally apply statmech to a set of cards or anything abstract.
Jun
2
answered Deriving Statistical Mechanics laws from Quantum Mechanics?
May
7
comment why people choose condense matter physics the most in 2007 and 2008 for their phd? And what are they studying and what is application in this subject?
At university we learned that with logic, proper analysis and error analysis every smart person should arrive at the same conclusions. Why are experiments seem to "proof" completely opposite views at the same time? By "more real world applications" I thought that surely discoveries in more practical sciences like engineering are more often useful?! There were very few usable result in CMP in relation to the amount of papers published? Anyway, I hope this answer provides a complementary view from someone who doesn't regret that he quit the academic path for a reason :)
May
7
answered why people choose condense matter physics the most in 2007 and 2008 for their phd? And what are they studying and what is application in this subject?
May
4
comment Which new insight did $E=mc^2$ give us?
The moon has simple binding energy to the earth which was way before Einstein. And you could knock out an orbiting object and get energy back. Is binding energy in particular isn't the difference.
Apr
27
comment Which new insight did $E=mc^2$ give us?
You helped me find the answer. In my opinion you just don't get to the point and the "in-depth/fundamental" part was missing. That's as much as I can say. Thanks.
Apr
26
comment When does a pot not spill?
I've found an article to the walking spill problem: pre.aps.org/abstract/PRE/v85/i4/e046117
Apr
26
comment Which new insight did $E=mc^2$ give us?
It's certainly true. Let me try to draw a conclusion which is more the "fundamental insight" part that I was looking for. That splitting nuclei emits energy isn't surprising either due to the known concept of binding energy. But maybe the actual key point is that binding energy can be measure by the gravitational force? The conclusion I see is that kinetic energy can be converted to real particles. Is that the essence?
Apr
26
asked Which new insight did $E=mc^2$ give us?
Apr
20
comment Did they find a new particle with CMP?
Thanks! So it's similar to magnetic monopol discovery. How boring :)
Apr
20
accepted Did they find a new particle with CMP?
Apr
20
asked Did they find a new particle with CMP?
Apr
16
comment Macroscopic laws which haven't been derived from microscopic laws
Very good point! In fact I'm exactly refering to something like "more is different" and asking where such a high level law has been found, which was inaccessible from microscopic ones.
Apr
12
revised Macroscopic laws which haven't been derived from microscopic laws
added 68 characters in body
Apr
12
asked Macroscopic laws which haven't been derived from microscopic laws
Apr
7
comment When does a pot not spill?
Sharp edges could be part of the answer. I also see different shapes and angles. Moreover it seemed to me an elliptic container drips less from the flatter side. What about the material? And why the fancy shapes of teapots openings?