RPBook, to history
@RPBook@historians.social avatar

The Polish Embassy in London has released a series of interviews with Marian Rejewski, the first person to crack the code.

He explains the process, including how they did it before they invented the bomba, and how the bomba worked. Fascinating stuff.
https://www.youtube.com/playlist?list=PLpGkvbzPcKIkRFESgp-rn5wraRvJD-DEz


@worldwarshistory @militaryhistory

emmaaum, to random
@emmaaum@zirk.us avatar

imma going to be rewatching . again :)
anyone care to join us?

4 episodes, compact very bingeable supernatural that's creepy AF but not too scary. Set in a girls' high school with smart, strong, determined young women and Win Metawin's abs (that bit's for @JillsJoy )

So well done, great piece of story telling.

muralhunters, to history
@muralhunters@pixelfed.social avatar

Mural by Julian Nowicki in Bydgoszcz (Poland) dedicated to Marian Rejewski, a Polish mathematician and cryptologist who in late 1932 reconstructed the sight-unseen Nazi German military Enigma cipher machine

„Odszyfrowany Rejewski“, czyli upamiętniający Mariana Rejewskiego, matematyka i kryptologa, który w 1932 r. złamał szyfr Enigmy, najważniejszej maszyny szyfrującej używanej przez hitlerowskie Niemcy. Wielkoformatowy portret zdobi ścianę kamienicy przy ul. Gdańskiej 10 w Bydgoszczy. Powstał w 2017 r., a zaprojektował go i wykonał Julian Nowicki. Fot. @xlenka

thomas, to movies German
@thomas@metalhead.club avatar

Gleich: Oppenheimer. Zuhause ;)
Ich bin gespannt - die Meinungen dazu aus meinem Umfeld waren durchweg sehr positiv!

thisven,
@thisven@digitalcourage.social avatar

@thomas Mir wurde dieser Film auch im Zusammenhang mit () empfohlen.

Kannst Du (ohne zu spoilern) erzählen wie Du den Film findest?

paulfoerster, to retrocomputing
@paulfoerster@swiss.social avatar

I did two different layouts of the backplane for my ​-E metal case, just in case I get either of the two variants of the PP3 battery housing. This way, I can switch between using a small power supply or a 9V battery. 👍

https://www.cryptomuseum.com/kits/enigma/
https://en.wikipedia.org/wiki/Nine-volt_battery

Layout of Enigma-E metal case backplane with a big 9V battery case cutout.

majorlinux, to steam
@majorlinux@toot.majorshouse.com avatar
paulfoerster, to random German
@paulfoerster@swiss.social avatar

Die Nema, ein schweizer Abkömmling der deutschen , Modell K.

Sehr interessanter Artikel. Merci @watson_news

https://www.watson.ch/!534303473

Ductos, to VideoGames
@Ductos@mastodon.social avatar

Not a year goes by without , while putting out solid games, also doing something incredibly stupid and unnecessary.
They're adding to many older in order to break their modding capabilities, which they see as nothing more than cheating. https://www.gamesradar.com/resident-evil-mega-man-and-monster-hunter-fans-unite-to-oppose-to-capcoms-new-anti-mod-software/

etcetera, to random French
@etcetera@c.im avatar

Dernière énigme pour 2023 ...

Dans chacun des exemples ci-dessous, les formes A à L sont soit des blocs de couleur, soit des pochoirs (c'est-à-dire des carrés avec des trous). La forme en haut est créée en plaçant certaines des formes A à L les unes sur les autres. Le jeu est de déterminer quels pochoirs/blocs sont utilisés et dans quel ordre.

Par exemple, pour la Grille #1 la solution est :
D H K J I

À vous de jouer pour trouver les solutions aux grilles 2, 3 et 4.

⚠️Please Boost et répondre en mode content warning

Grille 2
Grille 3
Grille 4

pabloniusmonk, to random
@pabloniusmonk@mastodon.social avatar

Fascinating documentary! 💙

The Codebreaker: Elizabeth Smith Friedman 📺

"In 2008, decades after her death, the files were finally declassified. If we could miss something as big as Elizabeth, who is crucial in two world wars, who fights crime, who fights the mob, if we missed her, who else are we missing?"

https://youtube.com/watch?v=JiQz58Y67To&si=tppmq4AS_lejZjL_

etcetera, to random French
@etcetera@c.im avatar

Quelle est la probabilité que la balle atterrisse dans le seau B ?

⚠️ Please boost et répondre en mode Content Warning (pour ne pas spoiler).

etcetera, to random French
@etcetera@c.im avatar

Ce test a été posé lors d'un examen d'entrée à Cambridge. Ci-dessous se trouvent cinq grilles, chacune avec cinq carrés ombrés. L'une des grilles a les carrés corrects ombrés. Chacune des autres a exactement un carré incorrect.
Quelle grille est correcte ?

⚠️ Please boost et répondre en mode Content Warning pour ne pas spoiler.

glitchontwitch, to television
@glitchontwitch@ohai.social avatar

End of the Year Drama Challenge 2023
I'm gonna try to make this a thread. Yay for the ability to edit posts, I suppose? I'll also link in the post(s?) that isn't (aren't?) in order.

glitchontwitch,
@glitchontwitch@ohai.social avatar


Day 5: A visually beautiful 2023 drama

I think the usual suspects for beautiful dramas -- for good reason -- are period dramas with sweeping views, and elegant costuming.

Which is why it might, on the surface, be surprising for me to pick , given the modern setting, and the often enclosed, sometimes claustrophobic sets.

I think the beginning and end of the first episode should clear up why I chose it. It's gorgeous, in a horror way. And I love that.

glitchontwitch,
@glitchontwitch@ohai.social avatar

And yes, I was considering for Ajin in . At this rate people are going to think I only saw two dramas this year. :blobcatfingerguns:

Its okay. Day 18… is not going to help that assumption.

etcetera, to random French
@etcetera@c.im avatar

Ce test a été posé à des élèves chinois de 10-11 ans !

Ce train compte 11 voitures de passagers et un total de 381 passagers. Pour tout ensemble de 3 voitures consécutives, on compte 99 passagers.

Combien y a-t-il de passagers dans la neuvième voiture ?

⚠️ Please boost et répondre en mode content warning (pour ne pas spoiler).

virtualcolossus, to random

It's finally ready for you to try, right now!
- a Turing-Welchman Bombe of your very own.
Learn how to create menus then use the & checking machine to crack messages just like at Bletchley Park during .
Take a look at the rebuild running for real at The National Museum of Computing

bombe.virtualcolossus.co.uk

paulfoerster, to retrocomputing
@paulfoerster@swiss.social avatar

Build your own machine using paper. Yes, paper! 🤔 It's compatible with models I, M1, M2 and M3. It even simulates the plug board. 👍

All you need is a printer, scissors, some clear sticky tape and a crispy tube. Have fun. 🤣

https://makezine.com/article/education/how-to-papercraft-enigma-machine/
http://wiki.franklinheath.co.uk/index.php/Enigma/Paper_Enigma

paulfoerster,
@paulfoerster@swiss.social avatar

I actually built this thing and it works exactly as described on that Wiki page! 👍 But you’ll have to try a few times to get the scale of the printout to fit the diameter or the tube. It needs to fit exactly. It won’t work otherwise. I needed to scale the printout to 99% to get it right.

Important: Follow the instructions exactly!

And yes, I used a roll for it because it has the right diameter. 😝 Still not really a fan of that stuff. 🤢

http://wiki.franklinheath.co.uk/index.php/Enigma/Paper_Enigma


1/2

Reflector C and two additional rotor strips, plus two additional letter strips for changing codes.
The cardboard roll with the first reflector B strip and first rotor strip attached.
The second rotor strip has been attached.

david_megginson, to security
@david_megginson@mstdn.ca avatar

The German machines were designed never to replace a letter with itself. That's why the Allies were able to crack it.

Take a common phrase (a "crib") and if none of the letters matches a segment of the encrypted message — which becomes less likely as the crib gets longer — you may have found the day's Enigma rotor settings.

Modern split-key encryption is a different beast, but are we making the same mistake with password security requirements today?

glitchontwitch, to random
@glitchontwitch@ohai.social avatar

There was a brief moment I thought the rope was for a more mundane reason-- nope, scratch that.

lol A little bit of column A and B, I suspect.

As in, he is keeping her out bc of both legitimate reasons for her to keep out of that area, and also bc that's his space, damnit.

glitchontwitch,
@glitchontwitch@ohai.social avatar

And that was Episode 2 of

The show started so strong that I was worried if it'd be able to keep that up, or if it would end up faltering -- which can happen in some horror shows.

But this episode kept me just as enthralled as the first, if in different ways.

I've got stuff to do tonight, and tomorrow is hectic, but I should be back at the by Wednesday. :blobcatdance:

glitchontwitch, to random
@glitchontwitch@ohai.social avatar

Episode one of complete.

I'd say it shouldn't have taken that long, but I'm trying to get out of the habit of kicking myself for how my brain works. :blobcatfingerguns:

I would have liked to have had more focus, especially since I very much enjoyed the episode. But hey, it meant I had an excuse to rewatch a number of choice scenes. :blobcatdance: Silver linings!

glitchontwitch, to random
@glitchontwitch@ohai.social avatar

Enigma Ep1 🧵

What, me, nearly a week late for the ? 😅

Life was life. So, yeh.

Also the art in the very first couple of minutes is something I (and a friend I can think of offhand) would want on the wall.

So... hmm. What if I schemed for to have her watch it too? :blobcatthink:

glitchontwitch,
@glitchontwitch@ohai.social avatar

We interrupt this watch party with a language note:

Watching is reminding me that Drops doesn't quite get how Thai works.

Just like how it gets a bit confused when grammar comes into play with Korean.

There's something about its decision to teach words and phrases, but not the grammatical contexts they need to be in, in order to mean what it's saying it means... well...

Sometimes it tells you that "to be big" means "big." In Korean anyway.

etcetera, to random French
@etcetera@c.im avatar

Vous avez voté majoritairement (50%) pour une énigme de type logique. En voici alors une.

Trois lions sont dans un enclos. La nourriture préférée des lions est le zèbre. Cependant, si un lion mange un zèbre, le lion deviendra somnolent et pourrait être mangé par un autre lion s'il est à proximité. Un lion qui mange un lion deviendra également somnolent et risque d'être mangé par un autre lion.

Un zèbre est placé dans l'enclos. Les lions sont très logiques et également soucieux de leur survie. Ils ne mangeront d'autres animaux que s'ils sont certains de ne pas être mangés en retour. De plus, si un zèbre est mangé, il l'est par un seul lion, non partagé par la meute.

A) Le zèbre survit-il en présence des trois lions ?"

B) Dans la même situation qu'auparavant, mais avec quatre lions dans l'enclos au départ, le zèbre survit-il ?

⚠️Please boost + répondre en mode Content Warning (pour ne pas spoiler)
#puzzle #puzzles #énigme #enigma #logical #logicalthinking #logique

Lions versus Zèbre

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