5 ms·
In a Lab Accident, Scientists Create the First-Ever Permanently Magnetic Liquid
- qserasera 7y agoSuper skeptical of this
- gregallan 7y agoCare to elaborate?
- flowerlad 7y agoMagnets 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.
- reallydude 7y agoALL 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 https://www.physlink.com/education/askexperts/ae472.cfm
- deleted 7y ago[deleted]
- yorwba 7y agoDupe: https://news.ycombinator.com/item?id=20521875 https://news.ycombinator.com/item?id=20521875