Search FQXi


If you are aware of an interesting new academic paper (that has been published in a peer-reviewed journal or has appeared on the arXiv), a conference talk (at an official professional scientific meeting), an external blog post (by a professional scientist) or a news item (in the mainstream news media), which you think might make an interesting topic for an FQXi blog post, then please contact us at forums@fqxi.org with a link to the original source and a sentence about why you think that the work is worthy of discussion. Please note that we receive many such suggestions and while we endeavour to respond to them, we may not be able to reply to all suggestions.

Please also note that we do not accept unsolicited posts and we cannot review, or open new threads for, unsolicited articles or papers. Requests to review or post such materials will not be answered. If you have your own novel physics theory or model, which you would like to post for further discussion among then FQXi community, then please add them directly to the "Alternative Models of Reality" thread, or to the "Alternative Models of Cosmology" thread. Thank you.

Forum Home
Introduction
Terms of Use

Order posts by:
 chronological order
 most recent first

Posts by the author are highlighted in orange; posts by FQXi Members are highlighted in blue.

By using the FQXi Forum, you acknowledge reading and agree to abide by the Terms of Use

 RSS feed | RSS help
RECENT POSTS IN THIS TOPIC

Anna Shetty: on 7/9/18 at 9:05am UTC, wrote This article is useful for know about the root security of the containers....

jing boo: on 5/7/18 at 10:38am UTC, wrote Je veux porter une montre simple et élégante: pas de garniture...

Ian Harris: on 9/27/14 at 2:45am UTC, wrote Very entertaining video! Great experiment to demonstrate physics concepts. ...

Schatzie Dudee: on 9/12/14 at 19:13pm UTC, wrote Great job! Lots of cool explosions! Congratulations on a wonderful job. If...

David Atai: on 8/8/14 at 21:38pm UTC, wrote Video Image Video URL ...


RECENT FORUM POSTS

Jahangir kt: "A great website with interesting and unique material what else would you..." in Our Place in the...

Steve Agnew: "There is no difference between a word explanation and a math description...." in Schrödinger’s Zombie:...

Steve Dufourny: "I am going to tell you an important thing about the aethers. I thought that..." in Alternative Models of...

Joe Fisher: "Jason, I post sensible comments. I do not provide audio files. Joe..." in First Things First: The...

Joe Fisher: "Today’s Closer To Truth Facebook page contained this peculiar piece of..." in First Things First: The...

halim sutarmaja: "dewapoker hadir untuk semua pecinta game poker dengan teknologi terbaru dan..." in New Nuclear "Magic...

Jason Wolfe: "Hi Georgina, Steve, What is reality? The humorous answer, almost at the..." in Schrödinger’s Zombie:...

Jason Wolfe: "As for religious fundamentalists, I would rather deal with them, then with..." in More on agency from the...


RECENT ARTICLES
click titles to read articles

First Things First: The Physics of Causality
Why do we remember the past and not the future? Untangling the connections between cause and effect, choice, and entropy.

Can Time Be Saved From Physics?
Philosophers, physicists and neuroscientists discuss how our sense of time’s flow might arise through our interactions with external stimuli—despite suggestions from Einstein's relativity that our perception of the passage of time is an illusion.

Thermo-Demonics
A devilish new framework of thermodynamics that focuses on how we observe information could help illuminate our understanding of probability and rewrite quantum theory.

Gravity's Residue
An unusual approach to unifying the laws of physics could solve Hawking's black-hole information paradox—and its predicted gravitational "memory effect" could be picked up by LIGO.

Could Mind Forge the Universe?
Objective reality, and the laws of physics themselves, emerge from our observations, according to a new framework that turns what we think of as fundamental on its head.


FQXi FORUM
November 19, 2019

CATEGORY: Show Me the Physics! Video Contest (2014) [back]
TOPIC: Creating A MAGNET by David Atai [refresh]
Bookmark and Share
Login or create account to post reply or comment.

David Atai wrote on Aug. 8, 2014 @ 21:38 GMT
Video Image





Video URL

https://www.youtube.com/watch?v=t-rxwYMrWMs



Video Description

Two things we need to know: 1. Super conductivity phenomena hold the property of no current resistance. so no energy lose. 2. If we set an external magnetic field on a closed conductive loop (ring! in our case) and change the magnetic field, currents will appear such that the total field will be unchanged (because currents produce magnetic field). Story: we use the non energy lose and the field conservation to lock a magnetic field in a super conductive material (our material: YBCO - Yttrium barium copper oxide). The YBCO at a normal phase is non-conductive. He become superconductive at about 90 Kelvin (which is about 183 Celsius). so we need to freeze he's ass to put him in SUPER CONDUCTIVE PHASE (which of course make the material conductive!) We use a MAGNET to induce constant external magnetic field and then we remove it. Removing the field is basically a change in the magnetic field through the YBCO ring. Field conservation (its called Lenz's Law if interested) cause currents to show up and they Produce a MAGNETIC FIELD!! So we transformed a non magnetic material into a magnetic material which can hold forever and ever and ever as long there is no energy lose. good luck .

Video Co-Creator(s)

Daniel Bannit, Ben Gurion University


Video Creator Bio

Two normal physics students. One is the strong guy and the other is the beautiful one. We study at Ben-Gurion University and were partners at the teaching labs. We love coffee. one drinks more turkish coffee and the other more enjoys cappuccino. One time we went to the desert together with 4 more friends and we succeeded to calculate the trajectory of most of the celestial object except comets due to lack of data but we made a pretty ruff estimation which no one knows if its good enough or not. thanks!

Bookmark and Share



Schatzie Dudee wrote on Sep. 12, 2014 @ 19:13 GMT
Great job! Lots of cool explosions! Congratulations on a wonderful job.

If you get a moment, can you please vote on our 2 short videos? We would appreciate it:

http://fqxi.org/community/forum/topic/2167

http://fqxi.org
/community/forum/topic/2230

Thanks so much!

Schatzie Dudee and kids

Bookmark and Share



Ian C Harris wrote on Sep. 27, 2014 @ 02:45 GMT
Very entertaining video! Great experiment to demonstrate physics concepts.

If you get a chance I'd really appreciate it if you gave our video a watch and rated it as well!

http://fqxi.org/community/forum/topic/2189

Thanks in advance,

Ian Harris

Bookmark and Share



jing jingboo boo wrote on May. 7, 2018 @ 10:38 GMT
Je veux porter une montre simple et élégante: pas de garniture supplémentaire, pas de boutons supplémentaires, seulement des aiguilles juniors, peut-être quelques caractéristiques de date, replique montre mais ça doit être un look classique. Bien sûr, il y a des centaines de montres qui satisfont cette condition. La taille spéciale est légèrement réduite à 38mm. L'épaisseur des cosses et du boîtier est appropriée. La beauté de la Rolex antique, en particulier les cosses, l'avant et le milieu Le processus de tréfilage en une pièce a été fait avec un côté poli miroir, mais la montre en or n'a pas été traitée comme une section en acier avec un coin plat, et la courbe latérale était beaucoup plus douce. Bref, c'était la beauté de la vieille montre.replique montre de luxe La couronne elle-même est assez épaisse, donc elle est non seulement pratique pour l'enroulement et le réglage, mais elle évite aussi les mauvaises opérations. Soit dit en passant, il s'agit d'une couronne à vis, avec une résistance à l'eau de 100 mètres rarement visible sur une table officielle.

Bookmark and Share



Anna Shetty Shetty wrote on Jul. 9, 2018 @ 09:05 GMT
This article is useful for know about the root security of the containers. I got the knowledge of working of containers with the root behavior with the kernel.

run 3

Bookmark and Share



Login or create account to post reply or comment.

Please enter your e-mail address:
Note: Joining the FQXi mailing list does not give you a login account or constitute membership in the organization.