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John Dudley @johnmdudley.bsky.social · 6h

Those outside the field really don't pay enough attention to what goes on in condensed matter. Indeed, even the excellent DPG Quantum History Wall didn't include yesterday's Nobel Prize winning work on tunnelling in its list of quantum milestones of the 1980s! www.quantum-history.de

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John Dudley @johnmdudley.bsky.social · 29d

If you love supercontinuum (and who doesn't!) check out our forward-looking Perspective in EPL which is free to read. Thanks @jctravs.bsky.social Thibaut Sylvestre, Alex Heidt, Roy Taylor, Goery Genty iopscience.iop.org/article/10.1...

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John Dudley @johnmdudley.bsky.social · Aug 9

Reposting to @tsizer.bsky.social via JL Beylat. What about a tribute at the 100 year session at ECOC ?

John Dudley @johnmdudley.bsky.social · Aug 8

Very sad to hear that the great soliton pioneer Akira Hasegawa has died on June 22. His work truly was revolutionary in so many ways and impacted so many different fields. An obituary from Columbia is below. www.apam.columbia.edu/memoriam-pro...

In Memoriam: Prof. Akira Hasegawa (1934-2025)

Dr. Akira Hasegawa, former adjunct professor at Columbia’s Department of Applied Physics and Applied Mathematics, has passed away.

www.apam.columbia.edu

John Dudley @johnmdudley.bsky.social · Aug 8

Very sad to hear that the great soliton pioneer Akira Hasegawa has died on June 22. His work truly was revolutionary in so many ways and impacted so many different fields. An obituary from Columbia is below. www.apam.columbia.edu/memoriam-pro...

In Memoriam: Prof. Akira Hasegawa (1934-2025)

Dr. Akira Hasegawa, former adjunct professor at Columbia’s Department of Applied Physics and Applied Mathematics, has passed away.

www.apam.columbia.edu

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John Dudley @johnmdudley.bsky.social · Aug 8

Over in the other place, Grok actually gets it right ...

John Dudley @johnmdudley.bsky.social · Aug 8

I got a different result !!

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John Dudley @johnmdudley.bsky.social · Aug 5

Anyone with a library endowment fund who doesn't know what to do with it? First edition of Opticks for sale!

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John Dudley @johnmdudley.bsky.social · Jul 28

I just had some fun verifing the 1/r potential drop from a plasma ball. The idea is from @simonpoliakoff.bsky.social
and his video is here: youtube.com/watch?v=crW7... To get close to the ball (5 mm) I used a 10kOhm feedthrough terminator which yields around 25 V peak-peak !

Setup to measure potential drop from a plasma ball. Showing glowing ball and antenna and oscilloscope.

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John Dudley @johnmdudley.bsky.social · Jul 28

Just been too busy lately but starting to get back to social media again. Hope you've managed somewhere nice to cycle around this summer!

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John Dudley @johnmdudley.bsky.social · Jul 27

RIP the great Tom Lehrer ... www.youtube.com/watch?v=AcS3...

Tom Lehrer - The Elements - LIVE FILM From Copenhagen in 1967

YouTube video by The Tom Lehrer Wisdom Channel

www.youtube.com

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Reposted by John Dudley

Dano Loves Music @danolovesmusic.bsky.social · Jul 27

RIP Tom Lehrer

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John Dudley @johnmdudley.bsky.social · Jul 1

No comment needed really ...

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John Dudley @johnmdudley.bsky.social · Jun 26

This is incredible from Les Wright ! It has everything: lasers, home grown nonlinear optics crystals, and a home made Arduino-driven diamond saw. If you're planning to colonize Mars to avoid an apocalypse, include Les in your passenger list! youtu.be/RxjqMh3gkx8?...

A DIY Pockels cell!

YouTube video by Les' Lab

youtu.be

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John Dudley @johnmdudley.bsky.social · Jun 26

Great to see you celebrating! Congratulations!

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John Dudley @johnmdudley.bsky.social · Jun 22

And now ... ?

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John Dudley @johnmdudley.bsky.social · Jun 22

Is this planned or completed? 15 years ago it was very possible to do this without major disruption ... Today I'm not so sure!

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John Dudley @johnmdudley.bsky.social · Jun 21

Impact factors certainly do not tell the whole story, but in what is more or less an annual tradition, I have compiled a list for some physics/optics journals. Note that there are truly excellent articles in all of these journals and different journals play very different roles in the community.

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Reposted by John Dudley

European Research Council (ERC) @erc.europa.eu · Jun 2

Planning to apply for #research #funding from the ERC?

From the next application rounds, expect changes to the:

• proposal structure
• evaluation process
• extra funding you can request
• eligibility for Starting & Consolidator #Grants (from 2027)

More 👇 europa.eu/!RPHWvv

Changes to the 2026 and 2027 Work Programmes

With the launch of the competitions for grants under ERC Work Programme 2026 in July of this year, several changes to the submission of applications and the evaluation of proposals will apply. The mai...

europa.eu

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Reposted by John Dudley

Ambra Ferrari @ambrafer.bsky.social · Jun 6

Big changes to the ERC funding schemes!
Note the new eligibility criteria from 2027 on:
📌 Starting Grant: 0-10 y post-PhD
📌 Consolidator Grant: 5-15 y post-PhD
erc.europa.eu/news-events/...

Changes to the 2026 and 2027 Work Programmes

With the launch of the competitions for grants under ERC Work Programme 2026 in July of this year, several changes to the submission of applications and the evaluation of proposals will apply. The mai...

erc.europa.eu

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John Dudley @johnmdudley.bsky.social · Jun 16

Am guessing that @seamus.bsky.social has known about this for 40 years 😀

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John Dudley @johnmdudley.bsky.social · Jun 16

Just learned that the Wii remote triangulates position via IR sources in the bar you place on the TV. Most phone cameras allow you to see the emitters (top) but in fact you don't need them. You can replace the bar by two candles and it works just fine! Am sure most people knew this already ...

Images of the Wii "sensor bar" showing IR emission (top) and a picture of a TV with the bar replaced by two candles (bottom).

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Reposted by John Dudley

Hanna Le Jeannic @quantumhanna.bsky.social · Jun 16

Il n'y a pas "trop" de deux musées scientifiques à Paris! (surtout comparé au nombre de musées d'art 😅)

Et surtout quand ceux ci apportent des choses différentes (tellement de souvenirs! ⚡👩‍🦱).
NE LAISSONS PAS LE PALAIS DISPARAITRE! signez la pétition et partagez 🙏
⬇️
www.change.org/p/sauvons-le...

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John Dudley @johnmdudley.bsky.social · Jun 13

Tagging @pverschu.bsky.social ...

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John Dudley @johnmdudley.bsky.social · Jun 13

Our library holds a rare copy of the proceedings of the 1911 Solvay Conference on physics, and I enjoyed looking through it (very carefully) today. As well as the amazing discussions and pictures (these are from Perrin) it seems a previous reader had been practicing their French at the same time!

Page images from Proceedings of 1911 Solvay Conference

Page images from Proceedings of 1911 Solvay Conference with insert from a reader showing tables of French verb conjugaisons

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John Dudley @johnmdudley.bsky.social · Jun 13

Good morning everyone! Just the seasons doing their thing!

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