LinuxQuestions.org
Latest LQ Deal: Latest LQ Deals
Go Back   LinuxQuestions.org > Forums > Non-*NIX Forums > General
User Name
Password
General This forum is for non-technical general discussion which can include both Linux and non-Linux topics. Have fun!

Notices


Reply
  Search this Thread
Old 10-14-2020, 11:10 AM   #1
mjolnir
Member
 
Registered: Apr 2003
Posts: 765

Rep: Reputation: 87
Virtually Limitless Power from Graphene


It'll be interesting to see how this plays out. Harvesting energy from 'Brownian motion' has long been thought impossible.

'"An energy-harvesting circuit based on graphene could be incorporated into a chip to provide clean, limitless, low-voltage power for small devices or sensors," said Paul Thibado, professor of physics and lead researcher in the discovery.' https://phys.org/news/2020-10-physic...-graphene.html

https://journals.aps.org/pre/abstrac...evE.102.042101

Last edited by mjolnir; 10-14-2020 at 11:12 AM.
 
Old 10-14-2020, 11:21 AM   #2
hazel
Senior Member
 
Registered: Mar 2016
Location: Harrow, UK
Distribution: LFS, AntiX, Slackware
Posts: 4,712
Blog Entries: 13

Rep: Reputation: 2688Reputation: 2688Reputation: 2688Reputation: 2688Reputation: 2688Reputation: 2688Reputation: 2688Reputation: 2688Reputation: 2688Reputation: 2688Reputation: 2688
That sounds almost unbelievable, like getting energy from nothing. They do explain why it isn't a breach of the Second Law but I'm afraid the logic is beyond me. It's too long ago that I got my chemistry degree.
 
Old 10-14-2020, 11:34 AM   #3
mjolnir
Member
 
Registered: Apr 2003
Posts: 765

Original Poster
Rep: Reputation: 87
Quote:
Originally Posted by hazel View Post
That sounds almost unbelievable, like getting energy from nothing. They do explain why it isn't a breach of the Second Law but I'm afraid the logic is beyond me. It's too long ago that I got my chemistry degree.
Yeah, I passed over it at first but a guy I follow on Twitter posted it and he is fairly prominent in the 'circuitry' world so I posted about it.
 
Old 10-14-2020, 10:14 PM   #4
ntubski
Senior Member
 
Registered: Nov 2005
Distribution: Debian, Arch
Posts: 3,575

Rep: Reputation: 1885Reputation: 1885Reputation: 1885Reputation: 1885Reputation: 1885Reputation: 1885Reputation: 1885Reputation: 1885Reputation: 1885Reputation: 1885Reputation: 1885
This sound sufficiently ridiculous that I'm going to assume it's BS. Or perhaps a little more charitably, the press release has nothing to do with the actual research.

A poster here suggests it's complete BS though:
Quote:
there is an obvious source of energy in the schematic of their new preprint: that battery. I suspect that the bias voltage is the source of the power that they detect. (But I have not analyzed this in detail.)
 
Old 10-15-2020, 02:24 AM   #5
//////
Member
 
Registered: Nov 2005
Location: Land of Linux :: Finland
Distribution: 2 x Arch x86_64 | OpenBSD 6.7 bridge | Fedora 31 | Virtualbox Guest windows 10 pro
Posts: 470

Rep: Reputation: 207Reputation: 207Reputation: 207
i always hope these kind of news are true, but i am disappointed every time.
 
Old 10-15-2020, 09:30 AM   #6
enorbet
Senior Member
 
Registered: Jun 2003
Location: Virginia
Distribution: Slackware = Main OpSys
Posts: 3,100

Rep: Reputation: 3131Reputation: 3131Reputation: 3131Reputation: 3131Reputation: 3131Reputation: 3131Reputation: 3131Reputation: 3131Reputation: 3131Reputation: 3131Reputation: 3131
This is a fascinating subject but it does require some filters. There is, as always, a world of difference between what scientific journals discuss and what mainstream journalists write. Naturally the latter tends to be both dumbed down and sensationalized. For example, using the term "limitless" is not only non-specific, it is misleading.

To keep this short, there are no perpetual motion machines, power out requires power in, and we won't see Brownian Motion powering cities anytime soon and probably ever. What we will see and likely quite soon is very low power applications, commonly in microelectronics, someday on the level of smartphones, that can utilize the energy in for example WiFi to be utilized as a power source to power the device, or at least drastically reduce power needs and increase battery life. The impact of just that seemingly little bit is actually phenomenal and could have tremendous impact on the future of all of us.

It will be intriguing and exciting to see how it plays out, likely not only a good thing but a very good thing. Cheap energy, IMHO, is the single most important key to solving the majority of problems and ills facing Humanity. One possible outcome is that cheap energy can in effect become the "Ultimate Minimum Wage" putting a hard floor on Poverty and all the ills and drawbacks that engenders.
 
Old 10-15-2020, 09:42 AM   #7
hazel
Senior Member
 
Registered: Mar 2016
Location: Harrow, UK
Distribution: LFS, AntiX, Slackware
Posts: 4,712
Blog Entries: 13

Rep: Reputation: 2688Reputation: 2688Reputation: 2688Reputation: 2688Reputation: 2688Reputation: 2688Reputation: 2688Reputation: 2688Reputation: 2688Reputation: 2688Reputation: 2688
I remember a work colleague who made clocks in his spare time, making one whose working parts were made out of mercury. As this was almost frictionless, it required very little power and in fact it ran off small temperature differences in the surrounding atmosphere.
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
Graphene - possible new improvement for electronic devices Arcane General 1 03-01-2016 11:48 AM
LXer: HP-UX Takes Storage to 'Limitless' Heights LXer Syndicated Linux News 0 02-18-2007 05:16 PM
Virtually blank screen on Fedora 4 load JohnLocke Linux - Laptop and Netbook 4 08-11-2005 09:34 PM
Virtually moving IMAP Folders from mail/ to root level fishsponge Linux - Software 0 06-21-2005 04:53 AM
Design question on virtually hosting and port forwarding registering Linux - Networking 5 08-22-2003 04:35 PM

LinuxQuestions.org > Forums > Non-*NIX Forums > General

All times are GMT -5. The time now is 04:36 PM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration