#FediLZ #BlueLZ #PhysikEdu #MintEudu #Physik #iteachphysics

Danke an den #YouTube #Algorithmus, der mir immer wieder mal ein interessantes #Physik #Video vorschlägt.

Mein Fundstück der Woche: Ein simpler Versuch zur Induktion, den ich bisher nicht kannte.

Besser als so manche #Fortbildung

;-)

https://youtu.be/erkbrNDfWX4?si=LkVtvLHYw4heyDi8

Question for everyone: I have a vague recollection of hearing someone say “<Person> was probably the last person to know/understand all of science” - Where “science” refers to the knowledge at the time of that person’s existence.

Is anyone familiar with the quote, or failing that, would anyone like to make the case for a worthy candidate?

Would we have to go back to Aristotelian times, or would Isaac Newton or Ben Franklin make the grade? Keep in mind, I’m not just looking for a smart person, I’m looking for a polymath that had understanding across the sciences.

This is going to open up the question of which sciences to include, of course… For example, I think astrology can be included (the old version that actually cared where the planets were, not the modern “for entertainment purposes only” stuff), as there was a real drive to observe and build predictive models behind the questionable divination motive. Psychology is probably excluded simply because by the time it arrived, science was too broad for one person to comprehend everything.

Please repost/boost with more hashtags - I know I’ll miss a few.
#Science #ITeachScience #Astronomy #Biology #Chemistry #Physics #ITeachPhysics #ITeachChem #ITeachBiology

#FediLZ #BlueLZ #PhysikEdu #MintEudu #Physik #iteachphysics

Schöne und offenkundig lustige Anwendung zum Thema Drehimpuls bzw. Trägheitsmoment.

Sowas hätte ich auch gerne auf dem Pausenhof unserer #Schule

;-)

Moin #PhysikEdu,

ich habe endlich mein Isotopentafel-Puzzle fertig modelliert und gedruckt. Damit kann man die Isotope zusammenpuzzelnd und anschließend Zerfallsreihen ermitteln, wobei ein „Zerfallsrahmen“ auch nur auf die Isotope passt, die diesen Zerfall „können“.

- Makerworld: https://makerworld.com/en/models/998223?profiled=975203#profileId-975045 freue mich über Boost/Likes

- GitHub: https://github.com/tweh/Table-of-Isotopes-Puzzle

#FediLZ #BlueLZ #PhysikEdu #MintEudu #Physik #iteachphysics #phyphox
@phyphox

Gerne möchte ich mit SuS im #Physik #Unterricht in der #Schule mit dem Magnetometer der phyphox-App am #Handy experimentieren:

https://phyphox.org/wiki/index.php?title=Sensor:_Magnetic_field

Im Video sind Flussdichten bis ca. 0,1 mT = 100 MikroT zu sehen.

Gibt es Schwellenwerte oder erfahrungswerte für Flussdichten, die im Umgang mit Schülerhandys nicht überschritten werden sollten?

#FediLZ #BlueLZ #PhysikEdu #MintEudu #Physik #iteachphysics #MusikEdu #Musik

Der Herr im folgenden Video singt zunächst eine völlig sinnlose Abfolge von Silben, alle in derselben Tonlage. Faszinierend ist, wie er der Reihe nach Konsonaten, Zischlaute und andere Dinge weglässt und dabei nach und nach immer deutlicher eine bekannte Melodie erklingt.

https://youtu.be/VenKtZZSrcI?si=JHIXFQ6x71X4rPHd

Absolut faszinierend! Ich habe selten so ein interessantes und beeindruckendes Video auf YouTube gesehen.

Cat physics is mainstreamed with this paper in the new issue of The American Journal of Physics. Cats probably already know this and just haven't told us before now.

On Cat-Human Interaction from the Viewpoint of Physics: An Equation of Motion by Anxo Biasi. #ITeachPhysics #Physics #Cats #Caturday #CatPhysics #AJP

https://pubs.aip.org/aapt/ajp/article/92/11/827/3317285/On-cat-human-interaction-from-the-viewpoint-of

Got myself a piece of calcite!
#ITeachPhysics #Birefringence #Optics

Reminder: The group velocity of a light pulse can exceed c, the speed of light in vacuum.
This only tells you that the "dispersion is almost linear" approximation you made when defining the group velocity has been violated, and that group velocity is not a good description of how fast the pulse is propagating anymore.

Corollary: always be VERY sceptical of any claim like "negative time has been observed". Actually, always be sceptical of any grandiose headline, especially when "quantum" is invoked.

#Physics #ITeachPhysics

https://www.scientificamerican.com/article/evidence-of-negative-time-found-in-quantum-physics-experiment/

The problem I always have any time I think about writing a textbook is that there are already a ton of excellent textbooks out there. Does the world really need one more written by me?
(Spoiler: probably not)
#ITeachPhysics

#PhysicsFactlet
Game of life, played on a Klein bottle (still very much a work in progress)
#ITeachMath #ITeachPhysics

Stuff you can measure cheaply with high precision:
* Time
* Voltage/Electric current

Stuff you can measure cheaply with modest precision, or expensively with high precision:
* Distance
* Acceleration
* Mass

Stuff you better give up hope to measure with any real precision, unless you have a full Physics lab devoted to it:
* Temperature
* Humidity

(The list is OBVIOUSLY incomplete)

Two years after a cyber attack, ALMA (the Atacama Large Millimeter/submillimeter Array) re-launched the ALMA mini-site for kids.

I'm glad it's back online. It has lots of great content and activities, available in both English and Spanish, including my favorite electromagnetic spectrum chart.

https://kids.alma.cl/

#PhysicsFactlet
Temporal coherence can be a bit confusing the first time you encounter it, so I made a small animation that might help teachers to explain it to students.
#ITeachPhysics #Optics #Physics

Looking for resources to use in astronomy education or outreach? Want to take a deep dive into topics in astrophysics?

NASA’s Universe of Learning has several curated collections of images, videos, activities, and more that focus on specific topics and targets.

Check them out:
https://universe-of-learning.org/informal-educators/science-resources/

To celebrate #BlackHoleWeek here is a collection of images, videos, interactives, activities, and background resources about black holes from NASA's Universe of Learning.

https://universe-of-learning.org/informal-educators/science-resources/black-holes

#FediLZ #PhysikEdu #MintEudu #Physik #iteachphysics #ChemieEdu #Chemie

Wie funktioniert eigentlich so ein Wärmekissen oder Knickpad? Wo war die Wärme vor dem Knicken?

https://yewtu.be/watchv=dId9jM2-mEY

#FediLZ #PhysikEdu #MintEudu #Physik #iteachphysics

Die zwei Postulate der speziellen Relativitätstheorie von Albert Einstein:

https://yewtu.be/watch?v=76OygZ6G_UA

Dieser #youtube Kanal ist für den #Physik #Unterricht wirklich Gold wert. Anschauliche und nachvollziehbare Erklärungen ohne Schnickschnack!

Und auch die Handy-App #phyphox hat einen kurzen Auftritt im Video!

I've just added to my web page a "brief" introduction to perturbation theory, mostly seen from the Physics point of view.

Typos are likely and (obviously) there would be a LOT more to say about it, but I hope it might help someone:
https://jacopobertolotti.com/PerturbationIntro.html

#FediLZ #PhysikEdu #MintEudu #Physik #iteachphysics

Die Grundversuche zur Induktion mit einer bewegten Leiterschleife im Magnetfeld:

https://yewtu.be/watch?v=ML-Nl-KSML4

Diese Anordnung mit der Schiene sehe ich zum ersten Mal. Habt ihr dieses oder ein vergleichbares Gerät an Eurer Schule?