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@rl_dane@polymaths.social · 3h ago
#TIL that in the 90s, several countries in Europe and Asia introduced cordless telephone systems that were an interim between home cordless phones and cellular devices. They used a home hotspot, and there would be some hotspots in public places like train stations and some roads, but the phones would have coverage through the pager service when out and about, and the user would go find a hotspot to dial in and check their messages when they got a notification. Really intriguing, I'd never heard of anything like that before! Ringway Manchester — I Can’t Figure Out These Strange Radio Devices. They Don't Exist! https://inv.nadeko.net/watch?v=feQnb6FyUmo https://invidious.nerdvpn.de/watch?v=feQnb6FyUmo https://yewtu.be/watch?v=feQnb6FyUmo https://www.youtube.com/watch?v=feQnb6FyUmo
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@RegularJoe@lemmy.world in til · 3d ago

TIL a photography student sent blank negative film to a dizzying height of 36.5 km using a helium balloon. Cosmic rays burned into the film, revealing ethereal patterns not visible to the human eye.

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@pablo@mastodon.com.pl · 3d ago
#TIL że w Jugosławii w latach 50. wymyślono system aktywowania hamulców samochodowych za pomocą uniesienia brwi. Miało to skrócić czas reakcji i zapobiegać wypadkom. https://www.weirduniverse.net/blog/comments/eyebrow_auto_brake #ciekawostka
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@mdione@en.osm.town · 4d ago
#TIL hashtags in #ActivityPub are diacritic agnostic, so #vélo and #velo are the same :)
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@cark@social.tchncs.de · 3d ago

RE: @cark@social.tchncs.de

#TIL You can copy or rename files without retyping the path:

❯ cp /your/long/path/config.toml{,.bak}

This expands to:

cp /your/long/path/config.toml /your/long/path/config.bak

Works also with echo (nice for testing).

Thanks to @irom@social.tchncs.de for recently pointing me in this direction. 👍️

#bash #linux #cli

Quoting
CarK :python: @cark@social.tchncs.de

In bash you can create multiple (nested) directories with a single compact line:

❯ mkdir -p a/{b,c/{x,y},d/{e,f}}

❯ tree
.
└── a
├── b
├── c
│    ├── x
│   └── y
└── d
├── e
└── f

Open quoted post
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@esureL@chaos.social · 4d ago
It seems that for more than a hundred years, no one noticed that the Icelandic "translation" of Bram Stoker's »Dracula« was basically fan fiction. 😄 https://en.wikipedia.org/wiki/Powers_of_Darkness_(Iceland) #TIL #Literature #Dracula
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@Wudi@feddit.uk in til · 5d ago

TIL that for the average price of a car in the US, you could buy 5 cars in China

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@Quilotoa@lemmy.ca in til · Apr 26, 2026

TIL the word "crap" predated the inventions of Thomas Crapper by many years. His name was a happy coincidence.

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Boosted by Kevin Karhan @kkarhan@jorts.horse
@todayilearned@noc.social · Apr 24, 2026
TIL that some coal miners would grow so attacheded to their canaries that they built resuscitation chambers for them https://blog.scienceandindustrymuseum.org.uk/canary-resuscitator/ #til #todayilearned https://www.reddit.com/r/todayilearned/comments/1sucoxi/til_that_some_coal_miners_would_grow_so/
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@harrysentonbury@social.linux.pizza · Apr 22, 2026
🍉 never heard of the band "The Strokes" before. not really my cup of tea. but they done a thing at that #coachella spose its what rock and roll is for. #thestrokes #TIL so i thought i best post it: https://www.middleeasteye.net/trending/the-strokes-coachella-set-criticising-us-foreign-intervention-goes-viral the vid: https://player.odycdn.com/v6/streams/1815faa62ebb8e01a9e23202100cf07043b919e1/ff9db6.mp4
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@wendynather@infosec.exchange · Apr 19, 2026
#TIL you can still buy Wacky Packages! #boomers https://wackypacks.com/forsale/
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Boosted by hypebot @hypebot@tacocat.space
@Her_Doing@sunny.garden · Apr 14, 2026
Lovely Peeps! Your cool #history for the day! 🚀 (You might want to watch with sound off. The music has words & I found it difficult to hear the music, read the text, AND focus on the signing.) If you want to just enjoy the signing, the full text is within this post. 😊 "Everyone’s talking about Artemis II. The first humans to travel to the moon in 50 years. Historic mission. But nobody’s talking about the #Deaf men who made it possible. In the late 1950s, #NASA had a problem. They needed to understand what weightlessness does to the human body. But every test subject kept getting violently motion sick. So they came to #Gallaudet. Eleven Deaf men. Most of them had lost their hearing to spinal meningitis as children, which also damaged their vestibular system. Their inner ears couldn’t be overwhelmed. They were immune to motion sickness. NASA put them in centrifuges. Zero-gravity flights. A rotating room for twelve straight days. One experiment on a ferry in choppy Nova Scotia waters. The researchers got so seasick they had to cancel it. The Gallaudet Eleven? They were playing cards. Their bodies gave NASA the data it needed to send humans into space. No #Gallaudet_Eleven — no Mercury. No Mercury — no Apollo. No Apollo — no Artemis II. Sixty years later, four astronauts just flew 252,000 miles from Earth & came home safely. They stood on the shoulders of eleven Deaf men most people have never heard of. Now you know!" #Artemis2 #ASL #History #TIL #Nyle_di_Marco
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@SrRochardBunson@universeodon.com · Apr 13, 2026
RE: https://mastodon.world/@paninid/116394828984080272 #TIL
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@todayilearned@noc.social · Apr 12, 2026
TIL the subsequent fires that broke out in San Francisco after the 1906 earthquake, destroying 80% of the city, was due not only to ruptured gas lines, but also because people were firing their own buildings after realizing insurance wouldn’t cover damages from an earthquake. https://en.wikipedia.org/wiki/1906_San_Francisco_earthquake #til #todayilearned https://www.reddit.com/r/todayilearned/comments/1sizhyw/til_the_subsequent_fires_that_broke_out_in_san/
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@km@mastodon.babb.no · Mar 28, 2026
reading docs is helpful -- during today's short look at #Python docs, I discovered that as of 3.14 functools.partial() may take placeholders: this makes it possible to pre-fill any positional argument with a call to partial(); without Placeholder, only the chosen number of leading positional arguments can be pre-filled. #Python #TIL https://docs.python.org/3/library/functools.html#functools.Placeholder
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@km@mastodon.babb.no · Mar 28, 2026
Trend Micro is now TrendAI #TIL #TrendMicro #cybersecurity
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@mgorny@mastodon.com.pl · Mar 09, 2026

@kuba@toot.kuba-orlik.name pisał o petycji o wprowadzenie graficznego symbolu złotego (@kuba@toot.kuba-orlik.name), a ja dziś odkryłem, że komputery #Mazovia miały symbol złotego!

Mazovia obecnie jest natywnie obsługiwana przez FreeDOS, jako strona kodowa CP790 (standardowa) i CP991 (zmodyfikowana: na pozycji 0x9B zawiera symbol złotego „zł” zamiast symbolu centa „¢”, czyli tak jak w karcie graficznej oryginalnego komputera Mazovia 1016).

https://pl.wikipedia.org/wiki/Mazovia_(kod)

#TIL

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Boosted by derptron @crazyeddie@mastodon.social
@todayilearned@noc.social · Mar 06, 2026
TIL that there was an actual debate among ancient Greek writers on whether Achilles or Patroclus was the dominant ("erastes") or the passive ("eromenos") one in the relationship, with Plato famously arguing that Achilles was a passive "eromenos" who was willing to give his life to avenge his lover https://en.wikipedia.org/wiki/Achilles_and_Patroclus#Classical_views_in_antiquity #til #todayilearned https://www.reddit.com/r/todayilearned/comments/1rmiiwp/til_that_there_was_an_actual_debate_among_ancient/
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Boosted by cool_boy_mew @coolboymew@shitposter.world
@todayilearned@noc.social · Mar 05, 2026
TIL there’s an Android game called “Send Me to Heaven” where the objective is to throw your phone as high as possible and catch it, with the app measuring height using the device’s accelerometer. Apple banned it from the App Store for encouraging users to damage their phones. https://en.wikipedia.org/wiki/Send_Me_to_Heaven #til #todayilearned https://www.reddit.com/r/todayilearned/comments/1rl3aul/til_theres_an_android_game_called_send_me_to/
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@thebluemarble__dup_34250@mastodon.com.pl · Mar 02, 2026
#TIL Myślałem zawsze, że Arabia Saudyjska jest tak ze dwa, góra trzy razy większa od Polski. Otóż nie. Arabia Saudyjska jest prawie siedmiokrotnie większa od Polski :P Merkator, ty kłamco! #geografia
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