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2d
reviewed Leave Open Demonstrating quantum non-locality by two consecutive measurements
2d
reviewed Close Calculating the surface integral over a charged box
2d
reviewed Close Questions about null geodesic
2d
reviewed Close Transverse simple harmonic wave travelling in a string
2d
reviewed Leave Open GEN3's 10nm-30nm Contiuum Radiation Measurements
2d
reviewed Leave Open Why should we extend the radio antenna to make it work though we board on enough height?
2d
reviewed Close I don't get the idea of potential in a capacitor
2d
reviewed Leave Open Infrared Camera spectral filtering with an uncooled camera?
2d
reviewed Close problem in making hologram (3 sided)
2d
reviewed Close Propagator in AdS
2d
reviewed Leave Open Fluid Mechanics: Stream Function for Axisymmetric flow
Apr
29
reviewed Leave Open What causes a materials distinc sound?
Apr
29
reviewed Leave Open Does QM unequivocally violate the law of bivalence?
Apr
29
comment Can the density of a black hole be altered (if at all) by absorption?
You should go back and reconsider the notion that black holes are necessarily dense. A billion solar mass black hole (as exists at the centers of some galaxies) has a density of about $20\ \mathrm{kg/m^3}$, $50$ times less dense than water.
Apr
29
reviewed Leave Open Physical explanation of Pascal’s Law
Apr
29
reviewed Leave Open Can Gravity be used as an energy source?
Apr
29
reviewed Leave Open Why an impact exerts so much force?
Apr
29
revised Why an impact exerts so much force?
edited tags
Apr
28
answered Energy conservation around a black hole
Apr
27
comment Converting between matrix multiplication and tensor contraction
@Dargscisyhp The key is the word represent. There is a well-defined, right and proper representation of rank-2 tensors as matrices. The problem is matrices are insufficiently rich objects to represent rank-(1,1), rank-(0,2), and rank-(2,0) tensors simultaneously in any sort of consistent way. An analogy might be streamlines representing either electric or magnetic fields, but if you have both simultaneously your diagrams are quickly going to get messy, since streamlines don't capture the relationship between $E$ and $B$.