Extra learning material for our Synchrotron Light book is freely available at
https://synchrotron-light.net
There's all the figures, links to most references, #python scripts and other bonus material.
A light from the periphery
The life of Indian physicist Satyendra Nath Bose illuminates how scientific genius can emerge from the most unexpected quarters
by Somaditya (Soma) Banerjee
More about Nath Bose;
https://en.wikipedia.org/wiki/Satyendra_Nath_Bose
⚛️ New opportunities for basic research: Helium nanodroplets make it possible to simulate the prevailing conditions in outer space. Physicists from Innsbruck and Greifswald have now succeeded in storing these droplets in an ion trap for up to one minute. This extends the experimental time window for these ultra-cold “mini-laboratories” by a factor of 10,000.
🆕 https://www.uibk.ac.at/en/newsroom/2025/ion-trap-enables-one-minute-in-the-nanocosmos/
📖 https://journals.aps.org/prl/abstract/10.1103/yr98-h791
#Physics #PhysicalReviewLetters #IonPhysics #ParticlePhysics
Ion trap enables one minute in the nanocosmos
OK, one of key features of our book on #Synchrotron Light is that it considers a broader context for synchrotron sources, by no means limited to particle accelerators.
In the book we discuss three generalisations:
1. Synchrotron radiation is not exclusive to accelerators. In fact, synchrotron emission "dominates much of high-energy #astrophysics" (quoting Longair's High Energy Astrophysics book)
2. The accelerating force must not be necessarily electromagnetic. For instance, an electron accelerated by the gravitational force of a black hole (by virtue of its mass) will produce synchrotron emission (by virtue of its electric charge)
3. The particle radiation mechanism must not be necessarily electromagnetic. Example: electron radiation of Z0 particles mediated by the weak interaction is equivalent to (conventional) synchrotron photon emission by electromagnetic interaction as in the figure. This is true since the unification of the electromagnetic and weak forces, any electromagnetic interaction involving a photon (a vertex in a Feynman diagram) can have that photon replaced by a Z 0 gauge boson
4/N
Extra learning material for our Synchrotron Light book is freely available at
https://synchrotron-light.net
There's all the figures, links to most references, #python scripts and other bonus material.
Before Newton: How the Islamic Golden Age Shaped the Physics We Know
Remarkable discoveries were made during the Islamic Golden Age, which laid the foundation for the study of physics as we know it.
by Matt Whittaker
https://www.thecollector.com/how-did-physics-begin-islamic-golden-age/
Books in Physics at PG:
https://www.gutenberg.org/ebooks/bookshelf/103
Before Newton: How the Islamic Golden Age Shaped the Physics We Know
Remarkable discoveries were made during the Islamic Golden Age, which laid the foundation for the study of physics as we know it.
by Matt Whittaker
https://www.thecollector.com/how-did-physics-begin-islamic-golden-age/
Books in Physics at PG:
https://www.gutenberg.org/ebooks/bookshelf/103
Question on #physics, specifically Einstein's equivalence principle that you can't tell if you're in a 1g gravitational field or undergoing 1g acceleration in a rocket or similar:
1: Most rocket accelerations etc are linear. Hold your arms out and drop two coins, they land *directly* "beneath" your hands.
2: You can't have a perfectly linear gravitational field, as far as I know? Drop two coins on Earth, they both land *slightly* closer to your feet because it's a radial field.
Question on #physics, specifically Einstein's equivalence principle that you can't tell if you're in a 1g gravitational field or undergoing 1g acceleration in a rocket or similar:
1: Most rocket accelerations etc are linear. Hold your arms out and drop two coins, they land *directly* "beneath" your hands.
2: You can't have a perfectly linear gravitational field, as far as I know? Drop two coins on Earth, they both land *slightly* closer to your feet because it's a radial field.
An impressive demonstration of focus, balance, and physics at work.
In November 2026, a historic milestone awaits humanity's Voyager 1. The legendary probe will reach the "one light-day" mark, meaning it will be so distant that communication requires a 48-hour round trip!
🧵 1/3
#Voyager1 #Voyager #Science #Astronomy #Physics #Space #DeepSpace #Nature #Astrodon #NASA
Hey fediverse, CERN* is hiring, mulitple roles including linux systems engineer.
*turns out this job is with a related company that was in the CERN newsletter.
In November 2026, a historic milestone awaits humanity's Voyager 1. The legendary probe will reach the "one light-day" mark, meaning it will be so distant that communication requires a 48-hour round trip!
🧵 1/3
#Voyager1 #Voyager #Science #Astronomy #Physics #Space #DeepSpace #Nature #Astrodon #NASA
