|
2019-12-01 Science & Technology
|
|
Physicists Have Identified a Metal That Conducts Electricity But Not Heat
|
h/t Instapundit
Researchers have identified a metal that conducts electricity without conducting heat - an incredibly useful property that defies our current understanding of how conductors work.
The metal, found in 2017, contradicts something called the Wiedemann-Franz Law, which basically states that good conductors of electricity will also be proportionally good conductors of heat, which is why things like motors and appliances get so hot when you use them regularly.
But a team in the US showed this isn't the case for metallic vanadium dioxide (VO2) - a material that's already well known for its strange ability to switch from a see-through insulator to a conductive metal at the temperature of 67 degrees Celsius (152 degrees Fahrenheit).
"This was a totally unexpected finding," said lead researcher Junqiao Wu from Berkeley Lab's Materials Sciences Division back in January 2017.
"It shows a drastic breakdown of a textbook law that has been known to be robust for conventional conductors. This discovery is of fundamental importance for understanding the basic electronic behaviour of novel conductors." 
|
Posted by g(r)omgoru 2019-12-01 02:02||
||
Front Page|| [11133 views ]
Top
|
|
Posted by Dron66046 2019-12-01 02:08||
2019-12-01 02:08||
Front Page
Top
|
|
Posted by g(r)omgoru 2019-12-01 02:16||
2019-12-01 02:16||
Front Page
Top
|
|
Posted by Lex 2019-12-01 02:17||
2019-12-01 02:17||
Front Page
Top
|
|
Posted by g(r)omgoru 2019-12-01 02:20||
2019-12-01 02:20||
Front Page
Top
|
|
Posted by Lex 2019-12-01 02:25||
2019-12-01 02:25||
Front Page
Top
|
|
Posted by g(r)omgoru 2019-12-01 02:27||
2019-12-01 02:27||
Front Page
Top
|
|
Posted by Lex 2019-12-01 02:30||
2019-12-01 02:30||
Front Page
Top
|
|
Posted by Dron66046 2019-12-01 02:37||
2019-12-01 02:37||
Front Page
Top
|
|
Posted by SteveS 2019-12-01 11:30||
2019-12-01 11:30||
Front Page
Top
|
|
Posted by ruprecht 2019-12-01 14:23||
2019-12-01 14:23||
Front Page
Top
|
|
07:43 Procopius2k
07:42 BrerRabbit
07:42 Procopius2k
07:39 Procopius2k
07:36 Procopius2k
07:35 Procopius2k
07:34 trailing wife
07:31 Procopius2k
07:30 NN2N1
07:22 NN2N1
07:18 trailing wife
07:14 Richard Aubrey
07:10 NN2N1
07:09 Besoeker
07:03 NN2N1
06:58 NN2N1
06:58 Besoeker
05:28 Whiskey Mike
05:23 Whiskey Mike
05:21 Whiskey Mike
05:18 Whiskey Mike
05:15 Whiskey Mike
05:13 Whiskey Mike
05:08 Whiskey Mike
|
