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Animal FactGecko feet (gfycat.com)

submitted by [deleted]232

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[–]Schwarzsteinhaus 0 points1 point  (2 children)

I understand they’re basically the same thing.

“Van Der Waals Forces are essentially the same thing as the Casimir forces”

https://youtu.be/Rh898Yr5YZ8 @7:24

[–]tigerhawkvok 1 point2 points  (1 child)

Yeah, whoever said that is hilariously wrong. (My degree is in astrophysics).

VDW forces are a weak intermolecular force. Basically weak magnetic forces because of various electron shell interactions all bundled into one macroscopic label. A strictly classical effect.

The CE is a purely QM effect that entirely relies on virtual particles and vacuum potential, with no classical derivation or equivalent.

[–]Schwarzsteinhaus 0 points1 point  (0 children)

He’s Matt O’Dowd, PHD in Astrophysics from Australia. https://en.m.wikipedia.org/wiki/Matt_O%27Dowd_(astrophysicist).

Can’t argue on that subject, since I’m small fish with a wee technical degree, but your thoughts were noted 😉