Jacopo Bertolotti's Avatar

Jacopo Bertolotti

@jacopobertolotti.com

Associated Professor of Physics at the University of Exeter. Scientific visualizations (grouped under the hastag #PhysicsFactlet). He/lui/on. All opinions are my own fault.

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Latest posts by Jacopo Bertolotti @jacopobertolotti.com

@photonphillips.bsky.social @moudhy.bsky.social
Any chance we can pull our know-how together to laser-write cuneiform in a glass cube?

"Why?" you may ask. And I am afraid I don't have a good answer to that question 🀣

06.03.2026 12:10 πŸ‘ 4 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Good news: optics is effectively one of the oldest (maybe the oldest) sciences out there, so it is likely that future civilizations will know some optics.

ps
Now I want to write some cuneiform in a glass cube with a laser.

06.03.2026 11:58 πŸ‘ 4 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

In order to generate the pulse I have a transient current density in the equations. That is the pulse detaching from the place where the current was.

06.03.2026 11:52 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

The manual was several hundreds of pages long, and 15-years-old me was just a bit overwhelmed 🀣

06.03.2026 10:37 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I have a day job and way too many time-consuming hobbies. I am trying very hard not to start learning how to code games 🀣

06.03.2026 10:36 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Please, partner with someone with gamedev skills and make a modern version of SimLife.
Please, please, please πŸ™

06.03.2026 10:01 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Stop making me wish I had the time (and talent) to get into gamedev! 😒

(This is amazing and you should be proud of yourself.)

06.03.2026 09:58 πŸ‘ 4 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Nuts and bolts come in discrete units.

06.03.2026 08:12 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

The fact you are calling it a "pie" means it is not a pizza, and thus it falls outside the scope of the original question. πŸ˜‰

05.03.2026 16:16 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Thoughts & prayers to the EPA :(

04.03.2026 20:02 πŸ‘ 1979 πŸ” 673 πŸ’¬ 45 πŸ“Œ 42

Potatoes on pizza are relatively normal in Italy (just cook them before you put them on your pizza!)

05.03.2026 11:32 πŸ‘ 1 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

I haven't made a single scientific animation in months. I just don't have the mental space right now.
But I am preparing a series of lectures on scattering for the Plasmonica 2026 School (www.
plasmonica.it/2026school/), and it feels like a good excuse to make a few new ones.
2/2

05.03.2026 09:27 πŸ‘ 8 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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#PhysicsFactlet
A simple finite element simulation of a pulse scattering on a small (but not point-like) dielectric obstacle.
The scatterer behaves approximately as a re is a very faint halo of light going everywhere, but most light gets diffracted into something similar to a Airy Disk.
1/2
πŸ’‘ βš›οΈ 🎒

05.03.2026 09:27 πŸ‘ 15 πŸ” 1 πŸ’¬ 3 πŸ“Œ 0

"and take full responsibility for the content of the publication" is the important part to me.

04.03.2026 15:00 πŸ‘ 9 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

This is indistinguishable from a satirical skit about MAGA electoral campaigns.
Seriously, since I have no clue who the guy is, if you were to tell me this was made by a comedian I would accept it without batting an eyelid.

04.03.2026 14:58 πŸ‘ 5 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Preview
EXCAVATION SUMMARIES | Swandro Read yearly summaries of the results of our excavation at the Knowe of Swandro, Rousay

I am not an archaeologist, but I assume the results are going to be published in a specialised journal?
Beside that it seems they are going to open the site to visits this summer, and there are detailed summaries of what has been found through the years www.swandro.co.uk/swandro-exca...

04.03.2026 11:28 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Maybe explain what scientific research have been kept hidden from the public (ideally providing some reliable source), instead of just name-dropping a place I had to google to even find out where it was?

04.03.2026 10:10 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Do not speak to me of the old magic

04.03.2026 09:22 πŸ‘ 7 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

And, in many cases, they have already put that paper in a publicly accessible space (like their personal website and/or a preprint server).

04.03.2026 08:48 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

This has happened exactly zero times.

04.03.2026 08:44 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Mathstodon

Hi @katherineschof8.bsky.social
Manuela is doing some work on transcribing the "1787 Teatro dei Fiorentini production of Paisiello's Barber of Seville" (see
mathstodon.xyz/@Xibanya@mas... ) and she was interested in talking with an historian of music. Maybe you know someone? πŸ™‚

03.03.2026 23:14 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
My first science video in 3 years!
My first science video in 3 years! YouTube video by Physics Girl

Diana's back! 🎒

youtu.be/B3m3AMRlYfc?...

03.03.2026 16:05 πŸ‘ 21 πŸ” 7 πŸ’¬ 1 πŸ“Œ 0
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The Voyageurs Wolf Project of Northern Minnesota tags & documents grey wolf ecology & behavior: www.voyageurswolfproject.org

The video you see here is confirmatory proof:
Wolves. Love. Blueberries.

As much as 83% of a wolf's calories in summer months comes from eating berries.

02.03.2026 13:58 πŸ‘ 1642 πŸ” 604 πŸ’¬ 19 πŸ“Œ 79

But, but, but carnivores alpha males...

🀣

(Silly jokes apart, this shows that wolves are smart and have good taste πŸ˜‰)

02.03.2026 14:04 πŸ‘ 23 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

AltGr+m=Β΅
(Linux, international keyboard)

Also: AltGr+h=Δ§

02.03.2026 11:27 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
A Day in the Life of an Ensh*ttificator
A Day in the Life of an Ensh*ttificator YouTube video by ForbrukerrΓ₯det - Norwegian Consumer Council

I find myself slightly suprised to be recommending a video from the Norwegian Consumer Council, but it's bloody good. www.youtube.com/watch?v=T4Up...

02.03.2026 00:10 πŸ‘ 29 πŸ” 20 πŸ’¬ 0 πŸ“Œ 6
Preview
Darwinismo quantistico Mediamente i fisici non sono troppo interessati alla teoria dell’evoluzione. Le leggi della fisica (per quanto ne sappiamo) sono rimaste sempre quelle dall’inizio dei tempi e l’un…

I just found a short article/blog post (in #Italian) I wrote >15 years ago on Quantum Darwinism. It is a bit naΓ―ve, bit I think it still does its job πŸ˜‰

02.03.2026 09:36 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

"Welcome to adulthood my young Padawan".

27.02.2026 14:36 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

To be fair: that book practically writes itself 🀣

27.02.2026 11:18 πŸ‘ 41 πŸ” 0 πŸ’¬ 4 πŸ“Œ 0
White Town - Your Woman (Official HD Video)
White Town - Your Woman (Official HD Video) YouTube video by Jyoti Mishra

Or Your Woman

27.02.2026 08:39 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0