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Fusion September 2024: Where are we with respect to "engineering break even"?

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5 answers
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Understanding the parabolic state of a quantum particle in the infinite square well

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2 answers
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How to raise and lower indices as a physicist would handle it?

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Electra
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Has any astronomer ever observed that after a specific star going supernova it became a Black Hole?

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3 answers
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Confusion about time dilation

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Work required to bring a charge from an infinite distance away to the midpoint of a dipole

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480 views

Gravitational potential energy of a water column

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414 views

Direction of centripetal acceleration

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How to solve self-consistent equations numerically?

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735 views

Quantum Gravity is non-renormalizable...So what?

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241 views

Advanced Composite Solar Sail (ACS3) Orbit

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Agnius Vasiliauskas
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353 views

Clarification Regarding a Possible Typo in David J. Griffiths' Introduction to Electrodynamics

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Issue with the roots of the Equation of Time

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Wien's displacement law

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Pressure of a gas on the inside walls of a cylinder canonical ensemble

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Spin-Spin Correlation Function

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Yvan Velenik
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401 views

Wrong explanation for why "electron can't exist in the nucleus"?

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benrg
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How do we know the strength of interactions in degenerate matter?

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107 views

Behavior of an ideal spring

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Beta function of a marginal operator

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How can events on the quantum-level be random but not on the macro-level?

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Can every quantum gravity theory be equivalent to a CFT or an EFT?

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How to interpret virtual electron neutrino in $e^+e^-\to W^+W^-$?

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John Rennie
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162 views

Why the normal vector addition does not seem to work in centripetal acceleration? [duplicate]

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The Tiler
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57 views

Are quantum measurements on two different particles always commutative?

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3 answers
198 views

Why Lorentz transformations instead of general linear transformations?

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90 views

Derivation or origin of projection tensor

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Is quantum entanglement independent of measurement timing?

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1 answer
93 views

Quantum behavior of small atoms and molecules in a material

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1 answer
128 views

Can a wave function discontinuous in the time variable be a solution of the Schrödinger equation?

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saturn
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125 views

Why is charge on a conductor stable?

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Andrew Steane
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2 votes
1 answer
90 views

When a function of the position operator is self-adjoint?

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Valter Moretti
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4 answers
113 views

Does Newton's 3rd law hold true everytime? [duplicate]

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Bob D
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2 answers
67 views

Does Black Hole Formation Require Only Mass Density or Also Event Horizon Contact?

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The 3.7 m dish antenna of Voyager

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Does entropy outside of thermodynamics also increase?

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Roger V.
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1 answer
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Rewriting the Euclidean on-shell action of Schwarzschild-AdS

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96 views

How potential energy is created in Electric dipole?

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What is the difference between Norton's dome experiment and $\frac{d^2x}{dt^2}= 6x^{\frac{1}{3}}$?

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Michael Seifert
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72 views

Derivation of the Classical Lifetime of Hydrogen

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If all matter is in a state of vibration what is the fundamental source of this vibration. In other words, how is this vibration state initiated [closed]

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3 answers
66 views

Gravitational redshift and time dilation

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1 answer
65 views

Value of $g$ in frictionless surface

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Is my theory correct? [closed]

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1 answer
102 views

If information can't move outwards the singularity then how does the event horizon "know" it has to expand simultaneously along the whole surface?

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Dale
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2 votes
1 answer
101 views

Why is $\phi$ not primary for 2d free boson?

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Connor Behan
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78 views

Question regarding Ohm's law and power dissipated

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