A history of manicules, or the little hands in books and posters

Why cartoons only have four fingers

Ever notice cartoon characters only have four fingers? There’s a surprising reason why and it goes back to the first Mickey Mouse cartoons. From saving money to cultural taboos, here’s why animators draw hands this way.

How muscles get their names

There are more than 600 muscles that crisscross the human body, and each has a name that's more than a simple label. Muscle names also typically communicate the muscle's size, behavior, length, location, appearance, direction, and attachments to bone. These names usually have Greek or Latin roots, such as in the case of the deltoid muscles, which are named in reference to the Greek letter delta (𐤃).

Why Men's Legs Were Everything

From codpieces to cotton hose, here's the surprisingly loaded history of men's legs, and why 18th-century Europe couldn't stop staring at them.

Mini-portraits were shared as love tokens in Elizabethan England

Art historians are identifying previously unknown works by Nicholas Hilliard, Elizabeth I's court painter, whose thumb-sized watercolors on vellum served as love tokens, diplomatic currency, and status symbols. They were believed to be passed secretly between courtiers and monarchs.

A researcher thinks she knows why people keep touching museum exhibits

A museologist who studied unauthorized touch at the British Museum concluded that people may feel it's difficult to learn about things "unless you handle them" and that people are trying to connect with the past, viscerally. Her work has included interviewing British Museum visitors who committed unauthorized touches and spending extensive periods observing people touching prohibited items across 2004 and 2005.

Breaking down 'clinch covers,' a defining characteristic of '80s romance novels

As romance novels became more popular in the 1980s, publishers leaned into the books' steamier content by advertising it on their covers. Eventually, one specific kind of portrait emerged: the clinch cover, which featured a muscly man, usually shirtless, holding a woman against his chest. This episode from 99% Invisible explores the history of the trend and why it's largely disappeared from modern romance novels.

The anatomy of 'Mashle,' as described by a doctor

"Mashle: Magic and Muscles" is a manga and anime in which a seemingly magicless man performs outsized feats he blames on "muscle magic." In this 15-minute video, a doctor breaks down the anatomy and biomechanics of some of the feats performed by Mash, the series' main character who's spotted flying a broom via leg pumping and reading magical texts while sitting in an invisible chair (i.e., single-leg squat).

The story behind one iconic meme

The 2012 post titled "Just a book owners smile" shows 11-year-old Maggie Goldenberger—resplendent in her braces, pigtails, and treasure map-like vest—holding a trio of Goosebumps books and grinning wildly at the camera. Another user quickly captioned it, "GERSBERMS. MAH FRAVRIT BERKS."

The history of skull modification

The ancient Maya people sometimes modified their skulls to appear more conical. Body modification has been a human pastime for literal ages, from piercings to bindings and everything in between. Modifying one's skull shape may have been a way to symbolize status, beauty, belonging, or belief. The health impacts of such practices are still debated. This article explores the history and health impacts of skull modification, also known as artificial cranial deformation.

The renaissance in the ancient art of calligraphy

The ancient craft of calligraphy is experiencing a renaissance, with hundreds of societies devoted to the practice of fancy penmanship. The movement consists generally of two camps: people who use "pointed pen" (or fine line work) and those who deploy the "broad nib" (large, broad letters). Disruptive members are attempting to bridge the divide.

The evolution of the em dash, a now-controversial piece of punctuation

The curious form of punctuation was originally used to replicate humans' naturally broken—and sometimes scattered—way of speaking, with Shakespeare often using it in his plays and Emily Dickinson deploying it for numerous effects. But as large language models like ChatGPT began using the em dash, real humans began viewing it as a tell of non-human writing. This podcast episode dives into the strange turn of events.

An absurd website that always finds a photo of someone pointing at your cursor

Move your mouse anywhere on the screen, and the site finds a photograph from its archive of a person pointing at that exact spot. It's a completely useless and delightful experience, and required a massive trove of tagged photos.

The Macintosh popularized GUI and mouse navigation for personal computing

A graphical user interface that utilized windows, icons, and pull-down menus, rather than text-based commands, contributed to the device's success after its January 1984 launch. Its original sound system—capable of playing four voices—was developed after non-technical staff suggested the machine should play music.

Visualizing the history of money

Money is any medium of exchange used in payments for goods or services and can take many forms. From cattle and shells in ancient times to paper and blockchain today, money has taken many shapes and sizes. This infographic illustrates some of the major forms of exchange world cultures have used over the last 5,000 years.

Sailor tattoos represent naval milestones

Sailors often come home with mermaids or turtles adorning their bodies. But what does it mean to have permanent images of propellers on your bum, British galleons with soaring tiers of sails on your chest, or a bicep portrait of the Roman god Neptune? Those tattoos represent meaningful naval milestones.

Crowds used a thumb gesture to decide whether a gladiator lived or died

This explainer unpacks pollice verso, the hand signal spectators used to call for a gladiator’s execution. Ancient sources never specify the direction; evidence suggests that the thumb was likely turned up or thrust toward the throat, not down.

NASA captures image of ghostly cosmic hand

NASA's X-ray space telescopes, Chandra and the Imaging X-ray Polarimetry Explorer, have joined forces to study a hand-shaped structure in space, revealing the magnetic field "bones" of a pulsar wind nebula. Pulsars are rotating neutron stars with strong magnetic fields, creating extreme physics conditions. The combined data from these telescopes provide insight into how pulsars inject particles into space and shape their environment, with the magnetic field playing a crucial role.

A sample of quirky medieval era-book titles

The medieval book publishing industry wasn't quite so robust as our modern era's, but the mystical and satirical tomes coming out at that time still needed a name. Peruse this list of some of the quirkier of those titles, which reflects the era's literalness, theological interest, and downright silliness.

Musicals use motifs to tell stories

This clickable interactive illustrates how famous musicals reuse musical motifs to convey character, power, and change—using "Wicked," "Les Misérables," and "Hamilton" to demonstrate how recurring melodies subtly drive the story.

‘Mint marks’ are tiny letters on US coins that correspond to which mint location created them

As more mint branches opened up after Philadelphia (the first mint location), these “mint marks” helped hold each branch responsible for the quality of the coin. A coin minted in Philadelphia, for instance, would have the letter “P” on it. Some mint marks are extremely rare, making coins displaying them particularly valuable to collectors.

The concept of phantom limbs, the perception that amputated limbs are still present, dates back to a French military surgeon in the 16th century.

The first robot in literature may have been a 'mechanical man' in 1907's 'Ozma of Oz,' a book in L Frank Baum's 'Wizard of Oz' series.

Prediction markets have their own lingo that's an amalgamation of Gen Z and Gen Alpha slang

For instance, if you've been out-maneuvered by another trader, you've been "mogged." A "rulescuck" is someone who is a stickler for betting market rules and may try to win on a technicality.

The Antikythera mechanism is the oldest example of an analog computer

Remains of the 2,000-year-old hand-powered model of the solar system were uncovered in a shipwreck off the coast of Greece in 1900. It had been used to calculate the motions of the sun, moon, and planets to help forecast events such as solar eclipses.

Mid-century modern graphic designers, known for their bright colors and bold lines in advertising, also found success with children's books.

'Mental hygiene' was the 1843 term for mental health

It was coined by American psychiatrist William Sweetzer to reference the same idea as personal hygiene. Mental hygiene, in Sweetzer's view, needed to be maintained in the same way people attend to their personal cleanliness, an idea that was supplanted by better understanding of the complexities of mental health disorder causes in the decades that followed.

Before it was a drink, coffee was used for handwashing

Five centuries before the caffeinated drink was consumed, coffee beans were used for their aromatic quality. One 10th-century text explains how it "obliterates greasy smells of food on hands and whatever of sweets and fats. Whether traveling or at home, neglect not to wash your hands with it."

Culicidology is the study of mosquitoes

This deep dive mosquito science podcast states that the word culicidology dates back to the 1970s, and comes from the Latin word for "midge"—a separate, tiny biting insect. It first appeared in a book review about a book called "Mosquitoes of New York."

Graffiti dates back to at least ancient Pompeii, where citizens scrawled messages to one another on public walls

Clever Hans was a 1900s horse that was believed to be able to solve math equations, tell time, and read and comprehend German, until a psychology student discovered how he got his answers.

Memecoins are a type of cryptocurrency—a form of digital currency with a wide variety of uses—created around popular 'memes,' or viral internet jokes.

The original copy of the Declaration of Independence is not a pristine document, and even features a smudged anonymous handprint in the bottom left corner.

Hear about the 250-year history of the United States Postal Service, complete with some of its strangest deliveries, important innovations, and the figures that made it an American institution.

Browse a detailed visual analysis of over 200,000 similes—comparisons that often use 'like' or 'as'—from popular fiction to see how frequently writers the same idiomatic expressions.

Some coin denominations have ridges etched on their sides, partly to prevent counterfeiting, in a practice called 'reeding.'

In 2019, a laptop loaded with six of the worst malware in history and described as 'an exhibit of historical weaponry' sold for $1.3M.

See these 16 pieces of art evoking phobias of snakes, flying, spiders, and more. 

Tattoos remain visible on your skin thanks to immune cells called macrophages

The hormonal disorder PCOS was renamed PMOS in 2026, a move designed to improve care and research by shifting the focus to the hormonal causes of this condition that affects 1 in 8 women.

While atoms are normally made of protons, neutrons, and electrons, exotic ones have been built with antimatter—alternate versions of normal matter that live for fractions of a second and are about a billion times as rare.

Exploring the Larry Bird punch that almost changed March Madness

This poison ivy knowledge quiz—accompanied by photos of the plant's varied forms—may help you identify this common rash-inducing growth.

The word 'jazz' evolved from 'jasm,' 19th-century American slang for 'energy'

The American cockroach is actually from Africa, an apparent hitchhiker aboard ships carrying enslaved people, with evidence suggesting the bug may have arrived in the New World as early as the 1600s.

Gerrymandering works through two techniques: cracking opposing voters across districts to dilute their power, and packing them into a few to waste their votes in lopsided majorities.

Learn how to read a prospectus, the juicy document that any company must file with the SEC before going public.

Sony set the standard for cylinder-shaped batteries when it repurposed manufacturing equipment used to make rolls of magnetic recording tape.

When caught in the mouths of cardinal fish, seed shrimp release glowing, bioluminescent chemicals, which alert predators of the cardinal fish, prompting the shrimp's ejection.

El Niño, Spanish for 'the boy,' was named after Jesus Christ because the phenomenon resembled the weather changes observed around Christmastime.

Use this calculator to find the dollar value of your mental load, from meal planning to coordinating after-school care for your children.