@j_bertolotti@mathstodon.xyz
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j_bertolotti

@j_bertolotti@mathstodon.xyz

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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QuantumWitch, to pixelart
@QuantumWitch@mastodon.gamedev.place avatar

Ren finds a spooky place, in Quantum Witch

j_bertolotti,
@j_bertolotti@mathstodon.xyz avatar

@QuantumWitch Is that witch really quantum? 🤔
oTheirJob 🙃

j_bertolotti,
@j_bertolotti@mathstodon.xyz avatar

@QuantumWitch Maybe if nobody is looking at her she gets delocalized and spread all over the screen? 🤣

MissingThePt, to random
@MissingThePt@mastodon.social avatar

You’ll have to pry my American paper out of my cold, dead hands.

j_bertolotti,
@j_bertolotti@mathstodon.xyz avatar

@MissingThePt To be fully honest, we are very happy for you to keep it.

j_bertolotti, to random
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The human eyes have "only" 3 different colour receptors, so multiple spectra can be perceived as the same colour.
(And this without considering all the ways the signal is processed before you actually "see" it.)

On the left, the absorption spectra of the 3 human colour receptors, with a varying spectrum (shown as a black line) on top. On the right a disk coloured with the RGB equivalent of that spectrum.

j_bertolotti,
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@nish Today I learnt a new word! 😃

j_bertolotti,
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Released into the and uploaded to together with the script used to generate it: https://commons.wikimedia.org/wiki/File:ColorVSspectrum.webm

j_bertolotti, to DnD
@j_bertolotti@mathstodon.xyz avatar

What is destiny? Destiny is a DM that spent a lot of time preparing for the session and is not going to have any of your shenanigans.

j_bertolotti,
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@franco_vazza With a #DnD hashtag I assumed the context was clear 😉

oblomov, to random Italian
@oblomov@sociale.network avatar

Ma quanto sono inutili i timesheet?

Ora chiederò che venga inserito anche il tempo per compilare i timesheet nella rendicontazione.

j_bertolotti,
@j_bertolotti@mathstodon.xyz avatar

@oblomov Recursive timesheets! 😱

j_bertolotti, to random
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Is there a list of news outlets that were once reputable and are now enshittified to the ground?
(Possibly including tech news websites.)

NanoRaptor, to random
@NanoRaptor@bitbang.social avatar

What are some numbers in your field that anyone else in the field would identify without even thinking about it, but folk outside may have no idea. Just the numbers, no explanations. Yet.

105 148 210 297 420 594 841 1189

j_bertolotti,
@j_bertolotti@mathstodon.xyz avatar

@NanoRaptor
1/137

lisyarus, to random
@lisyarus@mastodon.gamedev.place avatar

I'm at this stupid stage of the project when I can't randomly prototype anymore kuz I have specific plans, but I don't have a solid foundation to work with yet, so I have to invent it on the way, and it's hard.

Still, I'm making progress. Here's some grass spreading mechanic :)

video/mp4

j_bertolotti,
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@lisyarus Deadly spike traps springing below the feet of people? 🙃

j_bertolotti, to random
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Trying to mass-delete old emails from gmail is like pulling teeth 😖
Now I remember why I postponed it for years.

christianp, to random
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People who moved to the UK from somewhere else: is Argos weird, or is it charming?

j_bertolotti,
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@christianp Weird.

eniko, to random
@eniko@peoplemaking.games avatar

i wonder why other devs don't seem to localize to (brazilian) portuguese. the 2nd highest country for wishlists for kitsune tails is brazil (7% vs USA 40%), and historically we've had lots of sales from brazil. i get that the price per unit for that region is low but come on that's still a lot of fans you're leaving out in the cold by not localizing your game for them

j_bertolotti,
@j_bertolotti@mathstodon.xyz avatar

@eniko Genuine question: how different is written Brazilian from written Portuguese?

j_bertolotti, to random
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Reductionism is easy!
/s

https://xkcd.com/2933/

eniko, to random
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you ever feel so stressed you worry you may literally die?

haha yeah me either

j_bertolotti,
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@eniko
haha yeah me neither, no idea what you are talking about 😬

j_bertolotti,
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@eniko It was a few years ago. Thankfully I managed to get through it largely unscathed.
Hope it will be the same with you!

j_bertolotti, to random
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What do Hollow-Earth believers think about Flat-Earth believers? And vice-versa? 🤔

atomicpoet, (edited ) to random
@atomicpoet@atomicpoet.org avatar

It is shocking that Middle-earth: Shadow of Mordor is already 10 years old.

I’ve held off on buying this game because I only buy AAA games when they’ve got some age, all the bugs have been ironed out, and they fall in price. Well, I’m glad that I waited because last month, I bought both Middle-earth games and all the DLC for less than C$10. Based on all the time I’ve spent on this game today, I’d say it was worth it.

I am a huge Lord of the Rings fan. When I was 10-years-old, I read the trilogy in five days. Never before – or since – has a fictional world felt so fleshed out.

As it happens, I’m also a fan of Monolith Productions, the developer of Shadow of Mordor. They have made some of my favourite PC games of all time, including Blood and No One Lives Forever. Based on their track record, Shadow of Mordor had to be good.

And it is!

This is one of the best open world hack-and-slash RPGs that I’ve ever played. It is on a completely different plane of goodness. Perhaps better games exist, but will I enjoy them as much? That remains to be seen.

Like many games of its ilk, Shadow of Mordor is about fighting evil. You largely do this by killing orcs. You can either shoot them with a bow, sneak up behind them and slit their throats, or take on entire hordes and beat them to death.

But to me, what sets this all apart is that these aren’t random goblins. Let’s say a random orc gets the better of you because he managed a killing blow. His reputation increases amongst the orcs, he gains power, and now there’s a whole storyline about how he ended your life. Once you find that orc, he remembers that initial encounter, and things get real.

Speaking of death, the big gimmick of this game is that you can’t die. In fact, you’ve been banished from death. Instead, you’re somewhere between life and death, cursed to merge with a wraith. So every time you “die”, you just return as an undead hero – ready to wreak havoc again.

In a practical sense, this means that when you die, you don’t start over from scratch. Instead, your “death” becomes part of the continuous story. It’s nifty to experience, and I’ve never encountered anything quite like it.

I’m also impressed with the controls. Playing this game with a keyboard and mouse is a dream. It’s games like this that make me happy that I have a mechanical keyboard because it all feels so satisfying. I could play this with a gamepad, and it would probably be good, but I’d be giving up precision – and I just don’t want to do that.

Graphically, Shadow of Mordor is about as good as it gets for a game released in 2014. It still looks good now, and I think most people who play this on ultra settings would agree. But it’s also interesting to see how much graphics have improved over the past 10 years. Things like hair physics and lighting are radically different from 2014. Shadow of Mordor isn’t yet at the point where it’s “retro” in terms of graphics, but you can see its age.

It’s the sound department where this game consolidates itself as truly “epic”. The voice acting is superb. Combined with the orchestration of the soundtrack, it gives this game a cinematic feel.

Playing this on my Steam Deck is tempting. It’s “verified” for Steam Deck. It would probably work well. However, Shadow of Mordor and all its DLC demands around 80GB of space, and I just don’t want to put it on my Deck. Besides, I got to experience it on my 24” monitor running at 1920x1200 resolution with a 75fps framerate. So that’s fine.

I can wax poetic forever about the goodness of Shadow of Mordor, but this is one of those games that continues to be awesome as time goes on. Monolith, you did well. This is why I love PC gaming.

j_bertolotti,
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@atomicpoet Personal tastes are personal tastes, but I wasn't as enamoured with it as you seem to be. It is a lot of fun at the very beginning, but things get repetitive very fast, and after you unlock a few abilities you can just start mind-controlling your enemies. The "nemesis system" also never clicked with me. It mostly boiled down to: make silly mistake -> die -> random orc who killed me got promoted -> kill the newly promoted guy in 5 min -> never see its ugly face again.

j_bertolotti,
@j_bertolotti@mathstodon.xyz avatar

@atomicpoet I grew up with the C64, but when I was 10 I had a lot more time to devote to games than I have now.
Now the amount of time I can play is severely limited (2-3 hours a week max), so to me repetitiveness is a big issue.
But, as I said, personal preferences are personal preferences.

j_bertolotti, to random
@j_bertolotti@mathstodon.xyz avatar

: The "Ashcroft/Mermin Project"
I will try to (likely very slowly) go through the classic textbook "Solid State Physics" by Ashcroft and Mermin and make one or more animation/visualization per chapter.
This will (hopefully) help people digest the topic and/or be useful to lecturers who are teaching about it. As with all my animations, feel free to use them.
The idea is that the animations are a companion to the book, so I will give only very brief explanations here.

j_bertolotti,
@j_bertolotti@mathstodon.xyz avatar

: The "Ashcroft/Mermin Project" Chapter 4: Crystal Lattices
The "Wigner-Seitz" primitive cell is the region of space that is closer to a given point in the lattice. It has the advantage of being a primitive cell with the same symmetries as the Bravais lattice.

A 3D grid of 3x3x3 points, with the Wigner-Seitz primitive cell around the central point highlighted in grey. The grid starts as cubic, but is then gradually deformed (i.e. the Bravais lattice basis vectors are changed) while showing the changing shape of the Wigner-Seitz cell.

j_bertolotti,
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Released into the and uploaded to together with the script used to generate it: https://commons.wikimedia.org/wiki/File:Wigner-Seitz_Cell.gif

j_bertolotti,
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j_bertolotti,
@j_bertolotti@mathstodon.xyz avatar

Released into the and uploaded to together with the script used to generate it: https://commons.wikimedia.org/wiki/File:Crystal_Structure_as_Lattice_and_Basis.gif

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