Upside down buoyancy (Have you seen this?)

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    Buoyancy
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Discussion Overview

The discussion revolves around the concept of buoyancy, particularly focusing on an article that presents a novel perspective on floating equilibrium and its stability. Participants explore the implications of static potential energy and dynamic effects in this context.

Discussion Character

  • Exploratory, Technical explanation

Main Points Raised

  • Some participants express intrigue about the concept, noting its cleverness and novelty.
  • One participant highlights that the floating equilibrium described in the article is unstable when considered solely through static potential energy.
  • Another participant mentions that the stability of the system is attributed to dynamic effects related to oscillation, which are elaborated upon in supplementary materials.

Areas of Agreement / Disagreement

Participants generally agree on the novelty and cleverness of the concept, but there is no consensus on the implications of stability and the role of dynamic effects versus static potential energy.

Contextual Notes

The discussion references specific figures and supplementary text from the article, indicating that further details may be necessary to fully understand the claims made about stability.

kuruman
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Devilishly clever.

 
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Cool. I had definitely never heard of that before.
 
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Motore said:
Here is the accompanying article:
https://arxiv.org/abs/2003.04777
So the floating equilibrium on the bottom surface is actually unstable based on static potential energy alone (Fig 3B). The stability comes from dynamic effects of the oscillation, which take like 5 pages of supplementary text to explain.
 
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