This is also informative on the history of electric and magnetic fields:

https://www.youtube.com/watch?v=X42HsZC3B58

The transcript is here: https://kathylovesphysics.com/magnetic-fields-physics.../

#faraday #maxwell #electromagnetictheory

#onthisday in 1831: Michael Faraday discovered electromagnetic induction using his now famous iron ring experiment, which is shown in the figure below (or left).

What Faraday discovered was that induction was due to the change in the magnetic flux that occurred when the battery was connected and disconnected. He explained induction using a concept that he called "lines of force" [1,2].

Sadly, the scientists of the day widely rejected Faraday's ideas, mainly it seems because they were not formulated mathematically. An important exception was James Clerk Maxwell, who used Faraday's ideas as the basis of his quantitative electromagnetic theory [3].

#faraday #maxwell #electromagnetictheory

References
--------------
[1] "Faraday's law of induction", https://en.wikipedia.org/wiki/Faraday's_law_of_induction

[2] "Basics of induction", https://www.testandmeasurementtips.com/basics-of-induction/

[3] "James Clerk Maxwell", https://mathshistory.st-andrews.ac.uk/Biographies/Maxwell/

I have not used or generated a business card for around 20 years.
But #defcon reasons.
I also have my #faraday bags.
The more I read about it, the more I don't want to go.
@dnsprincess how's your prep going?

SecurityOnline: Faraday v4.5.1 released: Open Source Vulnerability Manager https://securityonline.info/faraday/ #Reporting #Faraday

SecurityOnline: Faraday v4.5 released: Open Source Vulnerability Manager https://securityonline.info/faraday/ @news@lemmy.seedoubleyou.me #Reporting #Faraday

#science #physics #physique #faraday #wave #onde
Vidéo intéressante sur les « ondes de Faraday » induites par les bords. Le bord du bol change rythmiquement de forme très légèrement, l'intensité des effets de résonance peut devenir si forte qu'elle provoque des vagues déferlantes, les gouttelettes lévitent et rebondissent à la surface de l'eau.

PS : Michael Faraday (1831) montre le premier qu'un liquide soumis à une certaine excitation f entraîne des oscillations à sa surface de fréquence f/2.

Dr. Daniel Faraday and Captain Gault from Lost - kiss when? #Lost #DanielFaraday #Faraday #JeremyDavies #CaptainGault #GrantBowler

Qu'est-ce que je kiffe Tatiana Erukhimova! :shibahearteyes:

Professeure de Physique à l'université de Texas, très célèbre pour sa passion, son enthousiasme, sa pédagogie, son amour pour les sciences, son action pour qu'il y ait plus de filles qui suivent des parcours scientifiques ... Bref, une professeure parfaite !🥰

Dans cette vidéo, elle illustre, impeccablement, la « cage de Faraday » et comment on peut survivre à un coup de foudre.🌩️

#science #physics #physique #faraday

Another Faraday release where all the PRs created are by the community. Wholesome! 😍
https://github.com/lostisland/faraday/releases/tag/v2.7.5

#ruby #faraday

@paroolRSSbot Kooi van #Faraday om de hele school is de meest afdoende oplossing..📵

Hello Fellow Denizens of Infosec.Exchange!

Check out this really cool Faraday cage for your car keyfobs.

How do you overcome cybercrime . . . with style?

There’s a growing concern about criminals copying the signals from your car keyfob, commonly called a “relay hack.” To overcome this problem, some people use Faraday bags. They’ll throw their keyfob in a (usually) black, signal-proof, flexible bag when they get home. That works extremely well, because it stops your wireless car keys from emitting a signal which is then boosted by car thieves.

Thinking about typical consumers — let’s say your Aunt Linda — she probably doesn’t want some unsightly Faraday bag on her foyer table. But she wouldn’t mind stashing her keyfobs inside a beautiful product that also solves a security problem.

DUKU, a design and prototyping firm in the UK, developed an awesome version of a Faraday bag — except it’s round, solid and beautiful. The idea here is that consumers don't want to be thought of as being weird or odd. But they do want to solve their problems.

Why not work *with* human nature instead of against it? :blobthumbsup:​

People like beautiful things. So, let’s make our solutions beautiful.

Currently in the prototype stage, DFLEKT isn’t available for sale yet.

➡️​ Would you consider this as a gift for someone in your family?

➡️​ Would this be a positive way to start a conversation about security?

➡️​ Would a beautiful product like this make it easier to interest your significant other in cybersecurity?

DUKU has produced prototypes for me, however, I have no connection to the developers of DFLEKT. Just sharing this here as food for thought, and fuel for conversation.

https://www.duku.co.uk/dflekt
https://dflekt.com/

#DFLEKT
#RelayHack
#KeylessEntry
#Faraday
#Keyfob
#RelayHack
#PhysicalInfoSecProducts

MXenes Make Faraday Cages You Can Turn On And Off https://hackaday.com/2023/02/15/mxenes-make-faraday-cages-you-can-turn-on-and-off/ #HackadayColumns #faradayshield #faradaycage #Science #faraday #mxene

MXenes Make Faraday Cages You Can Turn On And Off - Shielding is crucial for all manner of electronic devices. Whether you want to kee... - https://hackaday.com/2023/02/15/mxenes-make-faraday-cages-you-can-turn-on-and-off/ #hackadaycolumns #faradayshield #faradaycage #science #faraday #mxene

The #Faraday Rotation Measure Grid of the #LOFAR Two-metre Sky Survey - Data Release 2: https://arxiv.org/abs/2301.07697 -> Irish astronomer brings science closer to finding origins of #magnetism: https://www.independent.ie/irish-news/irish-astronomer-brings-science-closer-to-finding-origins-of-magnetism-42341049.html (and in https://www.ucc.ie/en/media/academic/physics/15thevn/2022/Shane_OSullivan.pdf and https://lofar-mksp.org/ more about the LOFAR Magnetism Key Science Project or MKSP).

Faraday Mode = ACTIVATED

#Science #Friday #SciFri #Microscopy #SEM #Faraday #ElectronMicroscopy

Und kurz vorm #Wochenende fertig: das #Erklärvideo zum #Faraday-Effekt.

#zirkulare #Polarisation #Optik #Physik

https://tube.tchncs.de/w/qRCWw77kxX7HupccjTdXiT

So, das #Erklärvideo zum #Faraday-Effekt wird gerendert, morgen vielleicht etwas Tonspur einsprechen.

Währenddessen entsteht eine eventuelle Graphik zu einer akzeptierten #Publikation, mal sehen … die vielen Grautöne sind noch etwas gewöhnungsbedürftig, aber die #Farbigkeit der Probe (links) und des Bildes (rechts) ist hier entscheidend.

#wip: #Visualisierung #Faraday-Effekt.

#Physik #Optik #physics #optics #zirkular #linear #polarisiert #Licht

Pane, burro e #fisica.

Curiosità del pomeriggio #28

Come funzionano i freni dei treni? No, i morsetti non si usano mica a 300 orari!

Tutto grazie a quei geni di #Faraday e #Foucault, che scoprirono che campi magnetici variabili (p. es. generati da corrente alternata) producono correnti indotte in conduttori vicini, le quali si oppongono alle variazioni dei campi esterni. Queste esercitano forze sui suddetti conduttori tali da frenarli, se in movimento.

-
A domani!

https://www.youtube.com/watch?v=bEYPKlQCDKU

Pane, burro e #fisica.

Curiosità del pomeriggio #28

Come funzionano i freni dei treni? No, i morsetti non si usano mica a 300 orari!

Tutto grazie a quei geni di #Faraday e #Foucault, che scoprirono che campi magnetici variabili (p. es. generati da corrente alternata) producono correnti indotte in conduttori vicini, le quali si oppongono alle variazioni dei campi esterni. Queste esercitano forze sui suddetti conduttori tali da frenarli, se in movimento.

-
A domani!

https://www.youtube.com/watch?v=bEYPKlQCDKU