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Magnetohydrodynamics - Propelling Liquid Metal with Magnets!

Tech Ingredients · explainer · Watch on YouTube

Everyday physics & science demosFundamental physics3D printing, CNC & maker projects

What it is

Tech Ingredients explains the principles of magnetohydrodynamics and builds several demonstrations, including propelling liquid metal and electrolytes with magnets and a railgun-style setup.

Why Hacker News recommends it

It comes up as a great explainer on magnetohydrodynamic drives and pumps in threads about silent submarine propulsion.

  • 2 people recommended it
  • 2 different months
  • 1 strong recommendations
  • first 2018, last 2023

What HN commenters said

  1. “There's a great video from one of my favorite YouTube channels about Magnetohydrodynamic drives.”

    Great explainer on magnetohydrodynamic drives from a favorite channel.

    bloudermilk, 2020-01 · Strong recommendation · in “The propeller is giving way to the pump-jet propulsor on larger submarines”

  2. “there's a video on the Tech Ingredients channel that explains magnetohydrodynamic pumps”

    Explains how magnetohydrodynamic pumps work.

    elihu, 2023-06 · Recommendation · in “Taking a New Look at Fundamental Tech for Quiet Undersea Propulsion”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: mhd, liquid metal, magnets, propulsion, electrolytes

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