Crazy pool vortex
Why Hacker News recommends it
Cited as a concrete demonstration of vortex linkage, and as a better source link than the original submission.
What it is
Physics Girl shows a vortex phenomenon (a falaco soliton) that can be reproduced in a pool on a sunny day. Two vortices are created with plates and made visible with food coloring.
Recommended by 0 HN commenters across 0 different months, 2014 to 2024.
What Hacker News said
Cites jessaustin · 2014-12 · on “Crazy Pool Vortex [video]”
Mods, please change link to [this video] This "sun-gazing" site looks like the worst sort of zero-value content aggregator.
Cites peter_d_sherman · 2021-02 · on “Pyramid Magnets – Focusing Flux to a Point”
>"Pyramid magnets and how this design allows us to achieve flux densities over 1 Tesla from a standard neodymium super magnet. Check out our stacking technique that pushes magnetic field strength limits." Possibly related: The Physics of Magnetic Monopoles (or "How to pull the north pole off a magnet") - with Felix Flicker [LINK] Possibly related: Physics Girl - Crazy pool vortex [this video] Possibly related: Bubbleman: How to make a Whirlpool [LINK] Possibly related: Bizarre Spinning Glue [LINK] (PDS: OK, well maybe that last one is a stretch... <g>)
Cites westurner · 2024-04 · on “Google's quantum computer suggests that wormholes are real (2022)”
Indefinite causal order (indefinite causal structure) is already demonstrated at the quantum level at least. Do time crystals demonstrate macrostate retrocausality? There are time crystal in childrens' chemistry sets and they've been there for years. In this video [1], Physics Girl creates two vortices in a pool with plates and dyes the fluid flow between them with food coloring. How is this matter information flow between low pressure centers of local fluid vortices different from wormholes and ER=EPR particle state linkage? Is this effect of linkage between vortices the same thing as ER=EPR wormholes? Similarities: Low pressure in the center of a vortex; fluid vortical dynamics, State link