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GeneralRe: The art of brevity: Communication tips for IT professionals, programmers, and developers Pin
Nelek17-Aug-20 0:13
protectorNelek17-Aug-20 0:13 
NewsWindows 10's new GPU controls are great news for power users Pin
Kent Sharkey16-Aug-20 9:46
staffKent Sharkey16-Aug-20 9:46 
NewsYale physicists create an error-correcting cat for quantum computers Pin
Kent Sharkey16-Aug-20 9:46
staffKent Sharkey16-Aug-20 9:46 
NewsApple has finally met its Fortnite match Pin
abmv15-Aug-20 2:24
professionalabmv15-Aug-20 2:24 
GeneralRe: Apple has finally met its Fortnite match Pin
Greg Utas15-Aug-20 2:54
mvaGreg Utas15-Aug-20 2:54 
NewsGoogle Play Music to You Tube Music Pin
MarcusCole683314-Aug-20 9:28
professionalMarcusCole683314-Aug-20 9:28 
GeneralRe: Google Play Music to You Tube Music Pin
Kaladin14-Aug-20 9:57
MemberKaladin14-Aug-20 9:57 
NewsSuper-Duper Efficiency Achieved! Pin
David O'Neil14-Aug-20 9:00
professionalDavid O'Neil14-Aug-20 9:00 
phys.org[^] wrote:
Black silicon photodetector breaks the 100% efficiency limit

Serious question: if true, how is this not an example of entropy of a system decreasing? I must be missing something, because entropy always increases, but the article doesn't give enough info to tell. Could it be that the energy level of the photon was initially higher than the energy level of the electron?

After some thought, that must be it. So the title is a little misleading??? Even though it says "...The external quantum efficiency of a device is 100% when one incoming photon generates one electron to the external circuit..." Kind of a misleading definition of efficiency?

GeneralRe: Super-Duper Efficiency Achieved! Pin
Daniel Pfeffer15-Aug-20 8:59
professionalDaniel Pfeffer15-Aug-20 8:59 
GeneralRe: Super-Duper Efficiency Achieved! Pin
Matthew Dennis15-Aug-20 9:10
sysadminMatthew Dennis15-Aug-20 9:10 
GeneralRe: Super-Duper Efficiency Achieved! Pin
RedDk16-Aug-20 7:41
MemberRedDk16-Aug-20 7:41 
NewsApple boots Fortnite from the App Store after Epic adds direct payments Pin
abmv13-Aug-20 17:46
professionalabmv13-Aug-20 17:46 
GeneralRe: Apple boots Fortnite from the App Store after Epic adds direct payments Pin
Nelek13-Aug-20 19:42
protectorNelek13-Aug-20 19:42 
NewsSecurity gap allows eavesdropping on mobile phone calls Pin
Kent Sharkey13-Aug-20 12:01
staffKent Sharkey13-Aug-20 12:01 
GeneralRe: Security gap allows eavesdropping on mobile phone calls Pin
Peter_in_278013-Aug-20 18:57
professionalPeter_in_278013-Aug-20 18:57 
GeneralRe: Security gap allows eavesdropping on mobile phone calls Pin
Nelek13-Aug-20 19:36
protectorNelek13-Aug-20 19:36 
GeneralRe: Security gap allows eavesdropping on mobile phone calls Pin
Jon McKee13-Aug-20 21:59
professionalJon McKee13-Aug-20 21:59 
GeneralRe: Security gap allows eavesdropping on mobile phone calls Pin
Nelek13-Aug-20 23:44
protectorNelek13-Aug-20 23:44 
GeneralRe: Security gap allows eavesdropping on mobile phone calls Pin
Jon McKee13-Aug-20 23:57
professionalJon McKee13-Aug-20 23:57 
GeneralRe: Security gap allows eavesdropping on mobile phone calls Pin
Nelek14-Aug-20 3:32
protectorNelek14-Aug-20 3:32 
GeneralRe: Security gap allows eavesdropping on mobile phone calls Pin
ZurdoDev14-Aug-20 11:00
professionalZurdoDev14-Aug-20 11:00 
GeneralRe: Security gap allows eavesdropping on mobile phone calls Pin
Nelek14-Aug-20 11:08
protectorNelek14-Aug-20 11:08 
NewsGo and C# Comparison Pin
Kent Sharkey13-Aug-20 11:31
staffKent Sharkey13-Aug-20 11:31 
GeneralRe: Go and C# Comparison Pin
Nelek13-Aug-20 19:32
protectorNelek13-Aug-20 19:32 
GeneralRe: Go and C# Comparison Pin
Marc Clifton15-Aug-20 10:55
mvaMarc Clifton15-Aug-20 10:55 

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