iiinova — where your digital self keeps evolving

Manfred Frischholz @manfredfrischholz.bsky.social · 19/01/2025

Just one point from two home games within a week is simply not enough!

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Robert "The Bobby Yaga" McNees @mcnees.bsky.social · 06/01/2025

[Turn the sound on if you like joy.]

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Robert "The Bobby Yaga" McNees @mcnees.bsky.social · 07/01/2025

Physicist Marguerite Perey discovered Francium #OTD in 1939. It was the last element to be found in a naturally occurring state, rather than synthesized by humans. 🧪 ⚛️ 👩‍🔬 Image: Musée Curie/ACJC Collection

A photo of Marguerite Perey, seated and looking directly at the camera. Her right hand rests on her lap and her left hand is in her pocket. She is wearing a long white lab coat that is tied at the waist.

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Emily Hunt @emily.space · 12/01/2025

The @esa.int Gaia satellite will take its final scientific measurements on Wednesday. 🔭 This will conclude a 12 year series of continuous observations. Larger Gaia data releases are still in progress, but Gaia has already had a HUGE impact on our understanding of the #milkyway. (Image: ESA)

An artist's impression of the Gaia spacecraft.

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SV Werder Bremen EN @en.werder.de · 12/01/2025

It ends in defeat in Leipzig. FT | #rblsvw 4-2

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Robert "The Bobby Yaga" McNees @mcnees.bsky.social · 02/01/2025

Paul Dirac's paper "The Quantum Theory of the Electron," in which he derived the relativistic equation for spin 1/2 particles like the electron, was submitted #OTD in 1928. It’s one of the most important results of 20th century physics, taking the deceptively simple form: i ℏ γ.∂ψ - m c ψ = 0 🧪 ⚛️

The title and opening of the paper read:

The Quantum Theory of the Electron.

By P. A. M. DIRAC, St. John's College, Cambridge.

(Communicated by R. H. Fowler, F.R.S.—Received January 2, 1928.)

The new quantum mechanics, when applied to the problem of the structure of the atom with point-charge electrons, does not give results in agreement with experiment. The discrepancies consist of " duplexity" phenomena, the observed number of stationary states for an electron in an atom being twice the number given by the theory. To meet the difficulty, Goudsmit and Uhlenbeck have introduced the idea of an electron with a spin angular momentum...

Excerpt from section 3 of the paper, where Dirac shows that the equation behaves correctly under Lorentz transformations.

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CMS Experiment at CERN @cmsexperiment.bsky.social · 30/12/2024

What a year 2024 has been! 🎉 Before we jump to the new one we took a look back at all the incredible things that happened this year - and put a small selection of them together here: cms.cern/news/cms-wra...

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Patrick Bronner @p-bronner.bsky.social · 29/12/2024

Eine interessante Frage für den Silvesterabend: Klingen volle Sektgläser beim Anstoßen höher oder tiefer als leere Sektgläser? Und woran liegt das? Die Antworten geben Schülerinnen und Schüler eines Physik-Leistungskurses in Form eines genialen Erklärvideos: youtu.be/d7la1jphuJI

youtu.be

Zauber der Weihnachtszeit: Die Sektglas-Musik-Eisenbahn // Physik-Projekt III

YouTube video by Physik am Friedrich-Gymnasium Freiburg

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Sean Carroll @seanmcarroll.bsky.social · 27/12/2024

A new claim that dark energy isn’t necessary, we just need to properly account for inhomogeneities in the universe. Maybe. But his idea has been discussed for a long time - David Wiltshire, an author here, has been pushing it for 20 years, and others have also looked at it. (1/n)

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Robert "The Bobby Yaga" McNees @mcnees.bsky.social · 28/12/2024

Mathematician, physicist, and computer scientist, the great polymath (omnimath is more like it) John von Neumann was born #OTD in 1903. He considered his quantum mechanics contributions to be most important. To get a sense of the breadth of his work look at his Wikipedia “known for” list. 🧪 ⚛️ 💻 🧮

A photo portrait of Jon von Neumann. He is wearing a dark wool suit, seated and looking at the camera.

John von Neumann’s “Known for” list from Wikipedia. It is very long. The full list can be found at https://en.wikipedia.org/wiki/John_von_Neumann

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Kaffeehaussitzer @kaffeehaussitzer.bsky.social · 27/12/2024

Eine der schönsten Beschäftigungen überhaupt: Einen Spaziergang zur Buchhandlung des Vertrauens machen um ein Buch zu kaufen - und dabei noch nicht zu wissen, welches es sein könnte.

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Axios @axios.com · 27/12/2024

2024 will be the second straight "hottest year" on record. People around the world suffered an average of 41 extra days of dangerous heat this year because of climate change.

axios.com

2024 was alarmingly hot all over the world

Scientists don't fully understand why it surpassed previous years by such a wide margin.

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Robert "The Bobby Yaga" McNees @mcnees.bsky.social · 27/12/2024

A team led by physicist Chien-Shiung Wu obtained the first experimental confirmation of “parity violation,” in the decay of Cobalt-60, #OTD in 1956. Her theory colleagues received a Nobel for the prediction, but she was left off the prize. 🧪 ⚛️ 👩‍🔬 Image: Smithsonian Institution Archives

Chien-Shiung Wu standing behind the beam line of her apparatus. She is wearing a white lab coat and smiling at the camera.

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Prof. Stefan Rahmstorf @rahmstorf.bsky.social · 26/12/2024

Millions have been watching 'La Palma' on Netflix, featuring a tsunami washing over the Canary Islands. 🌊 A scenario with much science behind it, given the risk of collapse of a flank of the Cumbre Vieja volcano. Ocean model simulation of Abadie et al: agupubs.onlinelibrary.wiley.com/doi/epdf/10....

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Robert "The Bobby Yaga" McNees @mcnees.bsky.social · 26/12/2024

Mathematician John Conway was born #OTD in 1937. 🧪 He made broad and profound contributions across all of mathematics, but he is maybe best known by the general public for his "game of life" cellular automaton. Conway passed away in 2020, from COVID-19.

media.tenor.com

a black background with a pattern of white squares that says ' i ' on it

Alt: A gif of Conway’s “Game of Life” cellular automata.

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Manfred Frischholz @manfredfrischholz.bsky.social · 26/12/2024

Scientists modeled Santa’s epic Christmas journey: delivering to 300M households across 144M km in 35 hours. Traveling at 8.2M km/h (0.8% of light speed), Rudolph’s nose could shift colors due to the Doppler effect—a festive blend of physics and magic! tinyurl.com/yajbsbst

tinyurl.com

I’ve calculated Santa’s speed on Christmas Eve – and this is what it would do to Rudolph’s nose

Strap into your sleigh for some Christmas physics fun with Rudolph the ‘redshifted’ reindeer.

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Corey S. Powell @coreyspowell.bsky.social · 26/12/2024

The physics of a spinning dreidel is quite a bit different in the microgravity environment of the International Space Station, as demonstrated by astronaut Jasmin Moghbeli. 🧪

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Robert "The Bobby Yaga" McNees @mcnees.bsky.social · 24/12/2024

The Apollo 8 astronauts performed lunar orbit insertion #OTD in 1968. Frank Borman, Jim Lovell, and Bill Anders became the first humans to orbit the Moon, the first to see an Earthrise, fifty six years ago today. 🧪 🔭 Image: NASA

A color photo taken by the Apollo 8 astronauts of Earth rising over the horizon of the Moon.
There are subtle variations in the moons gray surface corresponding to craters and other features. The swirl of clouds is distinct on the rising Earth, along with blue oceans and tan and green land masses.

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Corey S. Powell @coreyspowell.bsky.social · 24/12/2024

Earlier today, the Parker Solar Probe set two space records: closest approach to the Sun, and fastest-ever human object, hitting a speed of 191 km/sec. 🧪 parkersolarprobe.jhuapl.edu

Snapshot of the Parker Solar Probe's stats as it passed less than 6.2 million km from the Sun.

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cosmos4u.bsky.social @cosmos4u.bsky.social · 23/12/2024

A complete collection of free, high resolution, downloadable images of all 88 western IAU-recognized #constellations was released today: noirlab.edu/public/news/... - the project also includes the release of the largest open-source, freely available all-sky photo of the night sky.

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Mogens B @mogensb.bsky.social · 23/12/2024

"Fly me to the moon" - the Apollo Guidance Computer was basically build on this resistor-transistor NOR gate, each IC containing 3 or 6 transistors, forming either a single 3-input NOR chip, or a double 3-input NOR chip. #RetroComputing #Apollo #AGC

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Manfred Frischholz @manfredfrischholz.bsky.social · 23/12/2024

"PiA® - Physics in Advent" is a unique Advent calendar offering 24 fun physics experiments and puzzles. Each day features a video showing an experiment you can try at home, with questions to answer online and solutions revealed the next day. Discover the joy of physics! youtu.be/azaUozj0XlY

youtu.be

PiA® - Physics in Advent 2024 - question 23

YouTube video by Physik im Advent

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Manfred Frischholz @manfredfrischholz.bsky.social · 23/12/2024

Earth’s Core May Be Messing with Time Days on Earth are subtly shifting. Research shows fluctuations in Earth’s spin over 3,000 years align with molten core dynamics, not climate. Using eclipse data and AI, scientists uncover how our planet’s heart may alter time itself. tinyurl.com/4jt2ed6p

tinyurl.com

Core Movements Could Be Causing Tiny Shifts in Earth’s Spin Speed - Eos

Researchers use ancient eclipse data and new machine learning techniques to understand what processes changed the length of Earth’s days over the past 3,000 years.

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Manfred Frischholz @manfredfrischholz.bsky.social · 23/12/2024

Human Brains Are Shockingly Slow, Study Reveals New research shows we process info at just 10 bits/sec—far slower than computers. Our thoughts move in single file, creating a mental bottleneck. Evolution shaped us for a slower world, but could future tech break the limit? tinyurl.com/w63v98tk

tinyurl.com

Scientists Quantified The Speed of Human Thought, And It's a Big Surprise

The speed of the human brain's ability to process information has been investigated in a new study, and according to scientists, we're not as mentally quick as we might like to think.

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Manfred Frischholz @manfredfrischholz.bsky.social · 22/12/2024

The magnetic North Pole continues its rapid drift from Canada to Siberia, prompting a major update to the World Magnetic Model. This recalibration is vital for navigation systems globally, as Earth's magnetic field evolves due to shifting iron and nickel cores. tinyurl.com/3ub6kau4

tinyurl.com

The Magnetic North Pole Has Officially Changed Position

It's time to recalibrate the navigation systems on ships, airplanes, and (given the time of year) Santa's sleigh: the position of the magnetic North Pole is officially being changed, continuing its sh...

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Manfred Frischholz @manfredfrischholz.bsky.social · 22/12/2024

Satellites CryoSat-2 and ICESat-2 reveal Greenland's ice sheet is thinning at alarming rates, losing 2,347 cubic km in 13 years. This drives sea level rise and global weather shifts. Combined radar-laser data offer critical insights for climate adaptation strategies. tinyurl.com/3kh59td3

tinyurl.com

CryoSat-2 and ICESat-2 Reveal Alarming Speed of Greenland’s Ice Meltdown

Satellite data from CryoSat-2 and ICESat-2 reveals significant thinning of the Greenland Ice Sheet, impacting sea levels and weather patterns globally. The combined radar and laser technology offers p...

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Manfred Frischholz @manfredfrischholz.bsky.social · 22/12/2024

Stanford AI research warns the 1.5°C warming limit is now out of reach. Even with rapid decarbonization, Earth’s hottest years will soar past records, with a 90% chance of exceeding 2°C. Urgent investment in adaptation is critical to brace for severe climate extremes. tinyurl.com/y6v24hze

tinyurl.com

Global Climate Goals in Crisis: 1.5°C Limit Now out of Reach, Stanford Researchers Warn

Artificial intelligence reveals new evidence indicating that rapid decarbonization alone will not prevent global warming from exceeding 1.5 degrees Celsius. The hottest years of this century are poise...

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Manfred Frischholz @manfredfrischholz.bsky.social · 22/12/2024

Scientists combined AI and advanced simulations to model Earth's core, revealing insights into its magnetic field and the role of iron. This breakthrough could also fuel energy-efficient AI tech like neuromorphic computing and next-gen data storage. tinyurl.com/mcdkf7hd

tinyurl.com

AI-Powered Breakthroughs Illuminate Earth’s Core Mysteries

New simulation methods reveal insights into the Earth's core and promise advances in neuromorphic computing for artificial intelligence. How Does Earth Generate Its Magnetic Field? While scientists un...

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Manfred Frischholz @manfredfrischholz.bsky.social · 22/12/2024

youtu.be

PiA® - Physics in Advent 2024 - question 22

YouTube video by Physik im Advent

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Manfred Frischholz @manfredfrischholz.bsky.social · 21/12/2024

youtu.be

PiA® - Physics in Advent 2024 - question 21

YouTube video by Physik im Advent

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SV Werder Bremen EN @en.werder.de · 21/12/2024

The perfect end to the year 🤩 FT | #svwfcu 4-1

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SV Werder Bremen EN @en.werder.de · 21/12/2024

Our thoughts are with all those affected by yesterday's tragic attack in Magdeburg 🕯️🖤 #werder

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SV Werder Bremen EN @en.werder.de · 21/12/2024

On top at the break 💪 HT | #svwfcu 3-1

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Patrick Bronner @p-bronner.bsky.social · 21/12/2024

Sinnvolle Aufgabenformate in den #MINT-Fächern im Zeitalter der künstlichen Intelligenz? Offen, motivierend, forschend, experimentell und alltagsnah! Dabei dürfen #KI-Tools co-kreativ eingesetzt werden. Beispiel: www.fg-freiburg.de/fg/aktuelles... Genutze KI: ChatGPT & DallE via @fobizz.bsky.social.

fg-freiburg.de

Zauber der Weihnachtszeit: Die exklusive Sektglas-Musik-Eisenbahn!

Im Physikleistungskurs haben unsere talentierten Schülerinnen und Schüler ein außergewöhnliches Projekt ins Leben gerufen... Herr Dr. Bronner berichtet.

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Helen Czerski @helenczerski.bsky.social · 21/12/2024

Happy Winter Solstice to all those in the northern hemisphere! The precise moment to celebrate is 9:21am GMT. Today in London is only 7 h, 49 min & 42 s long. Pic by Astronomy Photographer of the Year 2021 entrant György Soponyai. Solstice explanation & more here: www.rmg.co.uk/stories/topi...

taken by Astronomy Photographer of the Year 2021 entrant György Soponyai, shows the changing arcs of the Sun throughout the year. The smallest arc at the bottom marks the winter solstice, and the largest one at the top the summer solstice. The band in the middle is the 'equinox', with roughly equal hours of day and night.

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Corey S. Powell @coreyspowell.bsky.social · 21/12/2024

For your weekend relaxation: 1.5 billion years of plate tectonics in 60 seconds. Fun to locate your hometown (or ancestral town) and track where it's been over the years...or how long it's even existed as a physical location. 🧪 theconversation.com/witness-1-8-...

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SV Werder Bremen EN @en.werder.de · 20/12/2024

We are shocked by the tragic news coming out of Magdeburg. The thoughts of everyone at SV Werder are with the victims and those affected, as well as with their friends and family. 🖤

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Corey S. Powell @coreyspowell.bsky.social · 20/12/2024

If all goes well, we could have three commercially developed landers touching down on the Moon next month: Resilience from iSpace, Blue Ghost from Firefly, and IM-2 from Intuitive Machines. 🧪🚀 ispace-inc.com/news-en/?p=6... fireflyspace.com/news/firefly... spacenews.com/ice-hunting-...

Firefly prepares to ship the Blue Ghost lunar lander to launch site after successfully completing environmental testing for mission to Mare Crisium, carrying 10 NASA instruments.

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Manfred Frischholz @manfredfrischholz.bsky.social · 20/12/2024

youtu.be

PiA® - Physics in Advent 2024 - question 20

YouTube video by Physik im Advent

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Ethan Siegel @startswithabang.bsky.social · 20/12/2024

Do gravitons need to exist? #AskEthan We often assume that gravity is quantum, implying the existence of spin-2 gravitons. But is that mandatory, and is there any way to test/confirm the idea? bigthink.com/starts-with-...

bigthink.com

Ask Ethan: Do gravitons need to exist?

Electromagnetism, both nuclear forces, and even the Higgs force are mediated by known bosons. What about gravity? Does it require gravitons?

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Dave F @siliconundergro.bsky.social · 19/12/2024

Today is more or less the 50th birthday of the desktop computer. It was 50 years ago today that the Altair 8800 kit computer went on sale. There was an immediate waiting list because MITS couldn't keep up with demand. #retrocomputing dfarq.homeip.net/altair-8800-...

dfarq.homeip.net

Altair 8800 kits went on sale December 19, 1974

Even Bill Gates and Paul Allen couldn't get one

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Robert "The Bobby Yaga" McNees @mcnees.bsky.social · 19/12/2024

Albert Michelson, pioneer of optical interferometry, was born #OTD in 1852. Michelson refined measurements of the speed of light, failed to find evidence of the aether, and developed a method that now underlies gravitational wave detection. 🧪 ⚛️ (1/n) Photo: “Practical Physics,” Millikan & Gale

Black and white portrait of a young Albert Michelson. He has an elaborate waxed mustache, and his dark hair is part on the left. Michelson wears a light colored jacket, buttoned high, with a dark tie and white shirt with a vertical collar.

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Patrick Bronner @p-bronner.bsky.social · 19/12/2024

Zauber der Weihnachtszeit: Die exklusive Sektglas-Musik-Eisenbahn! Im Physik-Leistungskurs haben unsere begabten Schüler*innen ein außergewöhnliches Projekt ins Leben gerufen ... Video 1: youtu.be/2hB5GbqRM2c Video 2: youtu.be/PpjNQ3lOVqA Bericht: www.fg-freiburg.de/fg/aktuelles...

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Manfred Frischholz @manfredfrischholz.bsky.social · 19/12/2024

youtu.be

PiA® - Physics in Advent 2024 - question 19

YouTube video by Physik im Advent

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Robert "The Bobby Yaga" McNees @mcnees.bsky.social · 18/12/2024

J.J. Thomson was born #OTD in 1856. He discovered the electron, developed experimental techniques that led to mass spectroscopy, and trained physicists like Rutherford and Bohr. He was later BETRAYED by his own son, in the ultimate act of 20th century filial physics rebellion. (1/n) 🧪 ⚛️ 🎢

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Manfred Frischholz @manfredfrischholz.bsky.social · 18/12/2024

youtu.be

PiA® - Physics in Advent 2024 - question 18

YouTube video by Physik im Advent

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