Stephan "All Input Is Error" Bökelmann @MaxClerkwell
Electrician trying to solve problems at @PhysikUniBochum w/o considerable math or programming skillz. Lvl 5 Laser-Lotus. emBO++ Orga. PANDA-Collab. #Luminosity embo.io Bochum, 221b Baker Street Joined November 2016-
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I may feel stupid today, but I struggled with the idea of supremum and infimum back when I still had math classes. This is a beautiful explanation!
I may feel stupid today, but I struggled with the idea of supremum and infimum back when I still had math classes. This is a beautiful explanation!
Zwei Wochen habe ich mich durch die freigeklagten Atomkraftakten des Wirtschaftsministeriums gewühlt. Sie zeigen, wie grüne Spitzenbeamte die AKW-Laufzeitentscheidung 2022 gezielt manipuliert haben. Mehr ab Donnerstag am Kiosk und auf @cicero_online.
What's the best way to add testpoints to 400MBit LVDS lines on a #pcb, in order to record eye-diagrams, while distorting the signal as little as possible?
@BowTiedDrunkDan If labs can self fund it will change the landscape of science forever.
30 years of COSY operation and now shutdown party in @fz_juelich. The first #accelerator I had the chance to be working with, thanks to @PhysikUniBochum and @ruhrunibochum. Quite a sad day today, but looking forward to finding a new home at @FAIR_GSI_de
@MaxClerkwell How about github.com/yne/vcd then?
I have been living a lie the whole time arxiv.org/abs/1401.5761
I have been living a lie the whole time arxiv.org/abs/1401.5761
Can someone explain the `xz` problem to me? I feel a little stupid
The longer I am involved with #physics, the less I seem to know about what matter, space and time actually are. Is it normal to be genuinely scared by these words at some point?
It has its own beauty @ruhrunibochum
Yes, this was recorded and we will release the videos asap
Yes, this was recorded and we will release the videos asap
I hope this was recorded! Have slides been posted, @odinthenerd?
I hope this was recorded! Have slides been posted, @odinthenerd?
In case you weren't asking for my next vacation: Just saw the 1980s @VisitMA commercials on YouTube. I've never been more inspired by any commercial to want something that much. #spiritofmassachusetts .... well, except for "Are you keeping up with the Commodore"
Meeting C++ @meetingcpp
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992 Followers 958 Following @[email protected] Prompt Wizard, test me out. It's in the training data???Mathigon @MathigonOrg
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1.3M Followers 756 Following 1/2 Viking🇩🇰 1/2 Philosopher🇬🇷 Doctor of Medicine (MD). Opinions are my own.🔴Impfzentrum in der Kirche 🔴2G für Besucher im Hospiz 🔴Maskenzwang im Kirchenchor 🔴"Gott ist Queer" 🔴"Jesus würde Russenbabys töten" 🔴muslimisches Zuckerfest im Kirchenschiff 🔴klimagerechtes Vulvenmalen auf dem Kirchentag What could possibly Go wrong?
@_klimanotstand_ @GoeringEckardt Es könnte auch das Ergebnis wirklich wirklich beschissener Politik, absolut inkompetenten und weltfemden Personals und das garniert mit bornierter Arroganz sein. Das Rumgeopfere da oben passt dazu. Ihr seid der totalitäre Sargnagel der Demokratie.
What if I see a really disappointed ostrich?
Apparently, if you can see a tree, you're left-brained, and if you can see two people holding hands, you're right-brained 🤔
@BLSmith2112 @MuskBreaking Don’t post leaks of confidential information and expect me to follow
@MaxClerkwell By description I mean model. What is the best model to describe gravitation? Best here means self-consistent, requiring a minimum set of assumptions, and being able to describe most phenomena possible.
Hey @bochum_de findet ihr nicht auch, dass das aussieht wie die Kreuzung Herner Str. + Ring?
@rasharm_ They also wanted to ban gas stoves, so…
The analogy is only superficial. The Bianchi identities applied to the Maxwell equations do not give the equation of motion for charges, which has to be postulated adittionally, unlike what happens in general relativity where the equation of motion for matter is a consequence.
This field allows us to decompose the Riemann/Weyl tensors into electrogravitic and magnetogravitic tensors (via the Bel decomposition), formally analogous to electric and magnetic field vectors. And, just as for Maxwell, the Bianchi identities give us the dynamical laws. (9/10)
Not true. Energy and momentum are not conserved in general relativity except in some special cases. In fact, the standard cosmological model states that the energy of the universe is not constant (when it would be).
So the covariant divergence of stress-energy vanishes - in physical terms, this means that energy and momentum are always conserved in relativity! If instead we apply the Bianchi identities to the electromagnetic field tensor, we obtain the (homogeneous) Maxwell equations. (7/10)
Another misconception. The rank-2 analog of Maxwell theory is FTG, not GR. GR is *not* the theory of a spin-2 field.
Within this formalism, the full system of Einstein equations emerge as rank-2 tensorial analogs of the rank-1 (vector) Maxwell equations. Yet, somehow, it all goes back to boundaries of boundaries, and their emptiness... (10/10)
Khola Hübsch lebt in einer von ihrem Vater arrangierten Ehe und glaubt auch, dass die Gebete ihres Vaters von Allah gehört wurden. Khola Hübsch sitzt im HR Rundfunkrat und diskutiert morgen bei #HartaberFair über einen Rechtsruck in Deutschland. #ReformOerr #OerrBlog