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Wikipedia
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A free, collaborative, multilingual internet encyclopedia.

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The future of knowledge is yours to protect. #Wikipedia25

Donate now ➡️ donate.wikipedia25.org
November 10, 2025 at 3:10 PM
wikipedia.org
Sound can do more than carry music; high‑intensity sound waves can lift small objects. Acoustic levitation uses standing sound waves to suspend solids, liquids, or droplets in midair. 🧵⬇️ (1/4)
November 9, 2025 at 4:03 PM
wikipedia.org
City transit is not just for humans.

These animals are not commuting for work; they are seeking comfort, food, and safety. Their behavior highlights how urban wildlife adapts to human environments. It also challenges our ideas about public space. 

Hitch a ride to more info ➡️ w.wiki/FP3C
Dog wearing a diaper lying on a patterned bus seat next to a person’s arm. Text says: They need to get around too, apparently. These animals take advantage of human infrastructure. A pigeon stands on the floor of a subway car as passengers sit around it. Text says: Pigeons in New York City are known to take subway cars. Dog wearing a collar labeled "Boji" sniffs the floor of a crowded ferry. Text says: Boji is a street dog in Istanbul, Turkey, known for regularly riding on the city's public transport. Tan dog resting on the floor between passengers in a subway car. Text says: In Moscow, free-roaming dogs are known to ride the metro.
November 8, 2025 at 1:50 PM
wikipedia.org
Ever seen a car smile at you? That's apophenia.

From faces on Mars to Jesus on toast, these curiosities likely stem from mistaken identification and our brains’ overinterpretation of what our eyes see.

Learn more about our brains' desire to make connections and identify patterns ➡️ w.wiki/4wUF
Article of the Week: Apophenia. If your eyes tell you that this is a face, you are experiencing apophenia. It is your brain’s way of connecting dots and detecting patterns between two unrelated items. Image depicts the “Face on Mars”, one of the most striking and remarkable images taken during the Viking missions to the red planet.
November 7, 2025 at 1:21 PM
wikipedia.org
Guru Nanak Gurpurab celebrates the founder of Sikhism’s birth. Festivities begin with predawn Prabhat Pheris of devotional singing. A 48‑hour reading of the "Guru Granth Sahib" and, the day before, a grand street procession with the Sikh flag and scriptures lead into the main day. 🧵⬇️ (1/2)
A brightly lit Sikh temple adorned with white and purple lights against a dark sky. Text says: This Sikh festival is marked by processions, scripture readings, hymn singing, and langar, a communal meal that welcomes all.
November 5, 2025 at 6:20 PM
wikipedia.org
This Korean art means gathering place + sound.

Pansori performances can last for hours and draw on tales like "Chunhyangga" and "Sugungga". Born as folk entertainment, pansori is now a recognized cultural treasure.

Drum up more knowledge ➡️ w.wiki/FLhX
A Korean pansori performance with a singer in white hanbok and a seated drummer on a dark, minimalist stage. Text says: Pansori is a Korean art of storytelling in which a singer and a drummer perform epics that can last for hours.
November 4, 2025 at 2:42 PM
wikipedia.org
Celebrate World Sandwich Day by exploring the origin of this convenient meal 🥪

Legend says the Fourth Earl of Sandwich asked for meat between slices of bread so he could continue playing cards or working without greasy hands. 🧵⬇️ (1/2)
A man in 18th-century attire stands beside a column, holding a scroll, with domed buildings behind him. Text says: Does the modern sandwich exist because of one man's love for gambling? Probably not. But this popular myth helped make John Montagu, 4th Earl of Sandwich and namesake of the sandwich, a legendary figure.
November 3, 2025 at 2:01 PM
wikipedia.org
Across the International Space Station's modules, hundreds of experiments explore how life, materials, and even stars behave in microgravity.

Orbit more cosmic knowledge ➡️ w.wiki/tTY
Aurora borealis glows green over Earth's horizon, seen from space with city lights below and the Moon shining above. Text says: Life above Earth. On 2 November 2000, the first crew arrived at the International Space Station, beginning 25 years of human presence in orbit.
November 2, 2025 at 9:35 PM
wikipedia.org
Families build home altars during Mexico’s Day of the Dead. These ofrendas hold photos, candles, flowers, food, and personal belongings. They are visual and spiritual offerings welcoming the spirits of loved ones. 🧵⬇️ (1/4)
A colorful Day of the Dead altar with fruit, candles, marigolds, and a photo of a deceased person. Text says: Ofrendas: where the living welcome their ancestors home
November 1, 2025 at 11:13 AM
wikipedia.org
What’s 6 + 7? If you said "six seven", you’re in on the internet’s latest joke.

Born from Skrilla’s track "Doot Doot (6 7)", it spread through TikTok edits, basketball memes, and viral moments.

Now a symbol of Gen Alpha humor, "67" was named Dictionary.com 's word of the year. ➡️ w.wiki/FGo7
Article of the Week: 6-7 (meme). Sidewalk with the words “what’s 6+7?” written in chalk.
October 31, 2025 at 12:28 PM
wikipedia.org
Three days, three traditions: Allhallowtide links Halloween, All Saints’ Day, and All Souls’ Day.

Also called Hallowtide or Allsaintstide, it is a three‑day Western Christian season. 🧵⬇️ (1/3)
Full moon glowing behind swirling clouds with a dark church steeple silhouetted in the foreground. Text says: Three days to honor the dead. Halloween, or "All Hallows’ Eve", begins the Christian tradition of Allhallowtide on 31 October.
October 30, 2025 at 8:30 PM
Reposted by Wikipedia
wikimediafoundation.org
Wikidata has been recognized as a digital public good by the Digital Public Goods Alliance (DPGA) 🎉

Learn how Wikidata, which houses over 1.6 billion facts, advances education, innovation, and public institutions ➡️ wikimediafoundation.org/news/2025/10...
Ilse Falls in the Harz National Park, Germany. Text says: Wikidata is now the second Wikimedia project recognized as a digital public good.
October 29, 2025 at 6:24 PM
wikipedia.org
In a Siberian peat bog, workers unearthed a carved wooden figure that turned out to be incredibly old.

Known as the Shigir Idol, this larch sculpture was carved about 11,500 years ago and stands as the oldest known wooden statue. 🧵⬇️ (1/2)
Tall wooden Shigir Idol reconstructed and encased in glass, displayed upright in a museum exhibit. Text says: This idol is older than the pyramids.
October 28, 2025 at 1:57 PM
wikipedia.org
Where do love letters and sentimental gifts go after a relationship ends?

The Museum of Broken Relationships in Zagreb, Croatia, began as a whimsical idea when artists Olinka Vištica and Dražen Grubišić split and wondered what to do with their keepsakes. 🧵⬇️ (1/3)
Entrance to the Museum of Broken Relationships, with the name displayed in bold white letters on overlapping gray panels. Text says: Nothing says "closure" like mailing your ex’s stuff to a museum in Croatia. The Museum of Broken Relationships collects donated objects from failed relationships, each accompanied by a personal story.
October 25, 2025 at 12:47 PM
wikipedia.org
How well do you know your pasta? 🍝

Tiny, giant, stuffed, or wheel-shaped, names can change from town to town. One person’s paccheri might be another’s rigatoni.

Find your favorite pasta  ➡️ w.wiki/3po6
Article of the Week: List of pasta. World Pasta Day is celebrated on 25 October,
an opportunity to enjoy more than penne
and spaghetti. Image depicts a bundle of pasta sitting on a white surface, its long ribbons edged with ruffled sides.
October 24, 2025 at 4:16 PM
wikipedia.org
Sleep paralysis is a transient state where someone is conscious but temporarily unable to move or speak. It happens when the brain wakes before the body exits REM sleep, leaving muscle paralysis in place. 🧵⬇️ (1/3)
A woman sleeps while a goblin-like creature crouches on her chest, staring at her menacingly. Text says: Often accompanied by vivid hallucinations, sleep paralysis is a state between sleep and wakefulness where a person is aware, but cannot move.
October 23, 2025 at 1:37 PM
wikipedia.org
About a decade ago, Słubice, Poland, showed Wikipedia some love.

On 22 October 2014, the town unveiled a statue dedicated to the volunteers building Wikipedia. Four figures hold a jigsaw‑piece globe, echoing the project's logo.

Learn more about the Wikipedia Monument ➡️ w.wiki/FLha
Bronze statue of four figures lifting a globe made of puzzle pieces, symbolizing the collaborative spirit of Wikipedia. Text says: Did you know that the first Wikipedia Monument in the world was unveiled on this day in 2014?
October 22, 2025 at 7:15 PM
wikipedia.org
HEY! HAPPY INTERNATIONAL CAPS LOCK DAY!

Typing messages has become part of daily life. Unwritten etiquette urges senders to keep messages brief, respond promptly, and avoid all capitals, which can be interpreted as shouting.

LEARN MORE ABOUT TEXTING ETIQUETTE ➡️ w.wiki/FLhc
Text on black background says: WE'RE NOT ANGRY. WE'RE JUST MAKING A POINT. 22 October is International Caps Lock Day. Typing etiquette usually discourages all‑caps messages because they can seem like shouting.
October 22, 2025 at 12:37 PM
wikipedia.org
One of the most popular festivals in Hinduism, Diwali symbolizes the spiritual victory of "light over darkness, good over evil, and knowledge over ignorance".

Learn more ➡️ w.wiki/3APB
Article of the Week: Diwali. The Hindu festival of lights is here. Image depicts a woman working on rangoli designs.
October 17, 2025 at 10:05 PM
wikipedia.org
A massive flood of beer more than 4 meters high once swept through the streets of London, devastating an area of slum dwellings known as the St. Giles rookery. Read about the entire incident ➡️ w.wiki/Ddy
Victorian-era illustration of a brewery with smoke rising from chimneys and horse-drawn carts transporting barrels. Text says: On 17 October 1814, a vat burst at a brewery in London, unleashing a flood of beer that destroyed homes and took the lives of eight people.
October 17, 2025 at 12:48 PM
wikipedia.org
The answer to the Olbers' paradox lies in cosmic history: stars have not existed forever, and light from the most distant galaxies is stretched by the expansion of space.

Expand your knowledge about our expanding universe ➡️ w.wiki/3BFu
A diagram illustrating mipmapping, showing texture detail decreasing with distance from the viewer's perspective. Text says: If the universe is filled with countless stars, why isn’t the night sky ablaze with light? Known as Olbers’ paradox, this mystery reveals that the universe has a finite age and is expanding.
October 15, 2025 at 2:45 PM
wikipedia.org
Wayang kulit is Indonesia’s traditional shadow puppet theater. The term comes from Javanese words for "performance" and "skin", referring to the leather puppets. 🧵⬇️ (1/5)
A performer holds two large, ornate Thai shadow puppets behind a lit screen. Text says: Shining light on Indonesian shadow puppetry. The wonder of wayang kulit.
October 14, 2025 at 1:38 PM
wikipedia.org
It sounds like a horror story.

Capgras delusion is a real but rare psychiatric syndrome in which a person believes a loved one has been replaced by an identical impostor. First described in 1923, it is linked to psychosis, dementia, and brain injuries.

Learn more ➡️ w.wiki/CGqG
Elderly couple in vintage attire conversing on a city street, with 1940s cars and storefronts in the background. Text says: Capgras delusion is the belief that a loved one has been replaced by an identical impostor. The rare condition highlights how our brains connect facial recognition to emotional familiarity.
October 12, 2025 at 3:01 PM
wikipedia.org
The 2025 Nobel Prize laureates were announced this week.

Established by the 1895 will of Swedish inventor Alfred Nobel, the awards recognize those who have conferred "the greatest benefit to humankind”.

Learn more ➡️ w.wiki/3j6p
Article of the Week: Nobel Prize. Granted "for the greatest benefit to humankind", the Nobel Prizes are the most prestigious awards available in the fields of physics, chemistry, literature, peace, and physiology or medicine. Image is a painting of Swedish inventor Alfred Nobel sitting at a table.
October 10, 2025 at 3:12 PM
wikipedia.org
Pumpkin spice contains no pumpkin. It blends cinnamon, nutmeg, ginger, cloves, and, sometimes, allspice.

First created to season pumpkin pie, the mix now perfumes lattes, cookies, and candles. Learn how simple combinations can define the taste of an entire season ➡️ w.wiki/FLhU
Pumpkin spice latte with whipped cream beside a glowing jack-o’-lantern and cinnamon sticks in low, moody lighting. Text says: Ready for a spicy season? Pumpkin spice is just one of the many seasonal spice blends that enhance cooking around the world.
October 8, 2025 at 8:33 PM