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Different types of balls Different temperatures of the ball
Laquisha Henry-Linder's user avatar
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A quantum field theory can be classified as superrenormalizable, renormalizable, or nonrenormalizable and in the renormalization group an operator can be classified as relevant, marginal, or ...
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The mathematician Terry Tao has written an influential piece about three stages of mathematical maturity: pre-rigorous, rigorous, post-rigorous (see also on Wikipedia). Has anyone identified analogous ...
Lior's user avatar
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If all particles/matters eventually decay or annihilate in the distant future, will all the matter they once composed persist in some form forever, even after the universe reaches its (all scenerios ...
Nat's user avatar
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There is a flood situation happens, and an expert gives advices to defend from electric shock. One of his advices said that “in case that you force a way through water, we might cannot check if there ...
Kanokpon Arm's user avatar
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In my opinion, the generation of data is so complicated that no external party can check them. If that is true, why would I trust the published data, if they are only checked by parties within the ...
Veronica Noordzee's user avatar
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While the normal matter pulls things to itself because it bends the space and makes a dent on space what if there was a matter that made the space swell instead of making a dent
Tom's user avatar
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28 views

In my understanding of Quantum mechanics, which is demonstrably limited, Operators have corresponding observables. I imagine it like operators helping draw a graph, with probability on the y-axis and ...
OdinOblivion's user avatar
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Angular momentum $L$ of a particle in central force is a constant of motion. So for circular orbit, $$L =mωr^2 = constant.$$ This implies $$ω ∝ 1/r^2,$$ hence the time period of revolution, $$T = 2π/ω ...
Sirshendu Gayen's user avatar
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If I have a scalar field $\phi$ and its potential $V(\phi)$, is there a general expression for its initial conditions $\phi_i$ and $\phi_i^\prime$ in terms of the potential and either the background ...
kalle's user avatar
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There are 3 common configurations of transistors which are: common-emitter (most used), common-base and common-collector. LLM is not giving a satisfying theoretical answer for me so I ask here. Most ...
Duck Gia's user avatar
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I’ve been studying quantum field theory in curved spacetime (QFTCS) and trying to understand how the notion of positive frequency modes is observer-dependent. I want to check whether my current ...
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This question is motivated by whether it is physically possible to have a high-quality mister for cooking oil that does not require a non-reusable pressurized can. A household spray (as in the picture ...
anol's user avatar
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The equations of classical physics are time reversible -- unchanged when $t$ is replaced by $-t$. The Schrodinger equation in quantum mechanics is time reversible -- unchanged when $t$ is replaced by ...
Maurice Mizrahi's user avatar
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5 votes
3 answers
266 views

There was some debate in my modern physics course about the statement "The spin of an electron can only be measured in the presence of an external magnetic field". So far in the course, ...
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