Plausibility of a Dyson sphere
114501
Is Dyson Sphere a stable construction?
149353
Feynman diagram for attractive forces
70190
Quantum mechanical gravitational bound states
141447
Inverse Square Law and extra space dimensions
64060
Is it possible to obtain a sphere from a quotient of a torus?
94230
I want to understand a trick in the derivation of the Schwinger-Dyson equations
138832
Expansion coefficients of an arbitrary state in the Hilbert space of one-particle states
18029
Prospects for detection of gravitons?
26817
Quantum Field Theory from a mathematical point of view
71626
Superposition of distinct vevs in spontaneous symmetry breaking
7824
Particles reaching a singularity
104657
Wave/particle duality
129542
Do perfect spheres exist in nature?
64993
Connectedness of the $S^2$ sphere
12758
Magnets arranged in a sphere
22959
Does every even-dimensional sphere admit an almost complex structure?
29728
Does the vacuum in QFT have nonzero energy or not?