In a Lab Accident, Scientists Create the First-Ever Permanently Magnetic Liquid

livescience.com

21 pointsbabak_ap5 comments

Dupe: https://news.ycombinator.com/item?id=20521875

Super skeptical of this

Care to elaborate?

Magnets have the ability to pull things. This is energy being expended. But we know energy cannot be created, so it must be depleted after some time.

ALL permanence is relative, due to entropy, as you tried to say. We still use the word permanent as a useful term.

Permanent, in the headline, is certainly meaning something like a ferrite magnet or ceramic magnet. "Permanent" meaning it does not naturally lose it's coercivity in any perceptually measurable way. This is different than saying a substance can't have the coercivity reduced.

> https://www.physlink.com/education/askexperts/ae472.cfm

Reply on news.ycombinator.com