Physics ------- [(Up)](../../README.md#topics) | _See also: [Astronomy](../Astronomy/README.md#astronomy)_ - - - - ### Web resources [thermodynamics - The Sun is giving us a low entropy, not energy - Physics Stack Exchange](https://physics.stackexchange.com/questions/399463/the-sun-is-giving-us-a-low-entropy-not-energy) ★ [thermodynamics - Why does sunlight have low entropy? - Physics Stack Exchange](https://physics.stackexchange.com/questions/796434/why-does-sunlight-have-low-entropy) ★ [Hans Grassmann - Contributions to physics](https://www.fisica.uniud.it/~grassmann/contr_physics.htm) ★ [mp.mathematical physics - Water at the scale of a cell should feel more like tar? - MathOverflow](https://mathoverflow.net/questions/368213/water-at-the-scale-of-a-cell-should-feel-more-like-tar) ★ [quantum mechanics - Have researchers managed to \"reverse time\"? If so, what does that mean for physics? - Physics Stack Exchange](https://physics.stackexchange.com/questions/466335/have-researchers-managed-to-reverse-time-if-so-what-does-that-mean-for-physi) ★ [quantum mechanics - Can elementary particles be explained adequately by a wave-only model? - Physics Stack Exchange](https://physics.stackexchange.com/questions/535739/can-elementary-particles-be-explained-adequately-by-a-wave-only-model) ★ [astrophysics - What is happening when magnetic field lines snap or break? - Physics Stack Exchange](https://physics.stackexchange.com/questions/559741/what-is-happening-when-magnetic-field-lines-snap-or-break) ★ [astrophysics - How do scientists know that distant parts of the universe obey the physical laws exactly as we observe around us? - Astronomy Stack Exchange](https://astronomy.stackexchange.com/questions/39075/how-do-scientists-know-that-distant-parts-of-the-universe-obey-the-physical-laws) ★ [audio - Why can so little digital information be stored on a cassette tape? - Signal Processing Stack Exchange](https://dsp.stackexchange.com/questions/70700/why-can-so-little-digital-information-be-stored-on-a-cassette-tape) ★ [thermodynamics - Placed in equivalent freezers, would a liter of water or a liter of lava turn from liquid to solid first? (question from a 6 year old) - Chemistry Stack Exchange](https://chemistry.stackexchange.com/questions/141662/placed-in-equivalent-freezers-would-a-liter-of-water-or-a-liter-of-lava-turn-fr) ★ [fuel - Why do jet engines use kerosene rather than gasoline? - Aviation Stack Exchange](https://aviation.stackexchange.com/questions/13042/why-do-jet-engines-use-kerosene-rather-than-gasoline) ★ [Why do helicopters have skids? - Aviation Stack Exchange](https://aviation.stackexchange.com/questions/73842/why-do-helicopters-have-skids) ★ [LHC machine challenges leading theory of physics - BBC News](https://www.bbc.co.uk/news/science-environment-56491033) ★ [optics - What wavelengths of light does a banana reflect? - Physics Stack Exchange](https://physics.stackexchange.com/questions/646726/what-wavelengths-of-light-does-a-banana-reflect) ★ [quantum mechanics - When will a wave function collapse if the observer was only a camera and the video was watched later in time? - Physics Stack Exchange](https://physics.stackexchange.com/questions/646332/when-will-a-wave-function-collapse-if-the-observer-was-only-a-camera-and-the-vid) ★★★ [power - If we increased the frequency of HV-AC lines, could we get atmospheric air to excite and illuminate? - Electrical Engineering Stack Exchange](https://electronics.stackexchange.com/questions/694683/if-we-increased-the-frequency-of-hv-ac-lines-could-we-get-atmospheric-air-to-ex) ★ _(in [Group Theory](../Group%20Theory/README.md#group-theory))_ [Do all Noether theorems have a common mathematical structure?](https://physics.stackexchange.com/questions/597734/do-all-noether-theorems-have-a-common-mathematical-structure) ★ [💭](commentary/Chris%20Pressey.md#do-all-noether-theorems-have-a-common-mathematical-structure) _(in [Probability Theory](../Probability%20Theory/README.md#probability-theory))_ [Is probability physical or idealistic? Is probability an inherent part of nature/reality?](https://philosophy.stackexchange.com/questions/113570/is-probability-physical-or-idealistic-is-probability-an-inherent-part-of-nature) ★ ### Papers _(in [Order Theory](../Order%20Theory/README.md#order-theory))_ Deriving Laws from Ordering Relations (online @ [archive.org](https://archive.org/details/NASA_NTRS_Archive_20030107662)) ★★★ [💭](commentary/Chris%20Pressey.md#deriving-laws-from-ordering-relations) ### Books The Trouble with Physics (borrow @ [archive.org](https://archive.org/details/troublewithphysi0000smol_l5h1), [archive.org](https://archive.org/details/troublewithphysi0000smol_l3p8), [archive.org](https://archive.org/details/isbn_9780141018355)) ★ [💭](commentary/Chris%20Pressey.md#the-trouble-with-physics) The God Particle (borrow @ [archive.org](https://archive.org/details/godparticle00leon)) ★ [💭](commentary/Chris%20Pressey.md#the-god-particle) _(in [Numerical Analysis](../Numerical%20Analysis/README.md#numerical-analysis))_ An Introduction to Computer Simulation Methods: Applications to Physical Systems (borrow @ [archive.org](https://archive.org/details/introductiontoco0000goul)) ★★