Original photo by Bankim Desai/ Unsplash

Scientists have been putting names to species for hundreds of years, with Swedish botanist Carolus Linnaeus revolutionizing science with his binomial system — the foundation of modern taxonomy — in the 1750s. And while it may seem unlikely that any species could escape our gaze after centuries of searching, it turns out Mother Nature is pretty good at hide-and-seek. Today, scientists are aware of 1.7 million species, from the simple sea sponge to the gargantuan African bush elephant, yet estimates suggest there could be several million more species left to discover, or more. In fact, we may only know about 20% of all the species that are out there. Many of these yet-to-be-discovered animals live in some of the hardest-to-reach places, such as dense rainforests or the depths of the ocean. And many of them are incredibly tiny. 

All arachnids are spiders.

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“Arachnid” likely conjures up images of our favorite eight-legged friends, but there are other members of this creepy-crawly family. Mites, ticks, harvestmen, and scorpions are some of the other creatures that fall under the arachnid umbrella, alongside spiders.

Take, for instance, the spider. In April 2022, scientists announced that they’d discovered their 50,000th species of spider, Guriurius minuano, a member of the Salticidae family of jumping spiders. Found in the shrubs and trees of some parts of Brazil, Uruguay, and Argentina, this spider is one of over 6,000 jumping spiders already discovered — and it won’t be the last. According to the World Spider Catalog maintained at the Natural History Museum of Bern in Switzerland, Guriurius minuano is only the halfway point, as they expect another 50,000 spiders will be discovered in the next 100 years. Thanks to evolution, genetic mutation, and the many mysteries of nature, the work Linnaeus began so many years ago may never truly end.

Numbers Don't Lie

Numbers Don't Lie

Year Swede Carl Alexander Clerck published the text that gave spiders their first modern scientific names
1757
U.S. box-office gross for the 1990 film “Arachnophobia”
$53,208,180
Estimated number of plant and animal species discovered every year
18,000
Length (in feet) of the CGI version of Shelob, the hobbit-hungry spider from “The Lord of the Rings”
8

Young spiders are known as ______.

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Young spiders are known as spiderlings.

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Spiders could eat all humans in a year (not that they want to).

The world is full of itsy bitsy spiders, but those spiders have big appetites. According to some estimates, the world plays host to a collective 25 million tons of spiders, and a 2017 study concluded that those spiders eat between 400 million and 800 million metric tons (485 million to 970 million U.S. tons) of food a year. To put that staggering number into perspective, all of the adult humans on Earth weigh only 287 million tons. Luckily, humans are not the target of spiders’ voracious appetites. Instead, spiders prefer insects — though lizards, birds, and even mice can also be on the menu. Let’s hope, for all our sakes, that it stays that way.

Darren Orf
Writer

Darren Orf lives in Portland, has a cat, and writes about all things science and climate. You can find his previous work at Popular Mechanics, Inverse, Gizmodo, and Paste, among others.

Original photo by Iryna Sukhenko/ iStock

In an effort to ensure a perfect al dente texture every time, Barilla pasta offers nine Spotify playlists tailored to the precise cook times of popular pasta varieties. Curated as a more entertaining alternative to your everyday kitchen timer, the compilations debuted in 2021, blending both English and Italian music.

There are two playlists apiece for four different pasta varieties: spaghetti, fusilli, linguine, and penne. Each playlist ranges from nine to 11 minutes, based on recommended cooking time. The most popular (based on total followers) is “Mixtape Spaghetti,” which is 9 minutes, 3 seconds in length and includes hip-hop tunes from Jay-Z and Italian rapper Ernia.

The earliest known evidence of noodles was uncovered in China.

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In 2005, scientists unearthed a bowl of 4,000-year-old preserved noodles at the Lajia archeological site in northwest China. In an interview with NBC, researcher Houyuan Lu called the find the “earliest empirical evidence of noodles ever found.” The noodles were made from two types of millet.

At 19 minutes, 12 seconds, the longest playlist of the bunch is the only one dedicated to an entire recipe: “Absolute Carbonara.” This film-themed mix incorporates beloved tracks from Grease, Mamma Mia!, and Guardians of the Galaxy, and is tailored to the exact amount of time you’ll need to prepare a bowl of spaghetti carbonara from start to finish.

Numbers Don't Lie

Numbers Don't Lie

Year the Barilla company was founded
1877
Active monthly Spotify users (as of Q1 2025)
678 million
Fastest recorded time (in seconds) to eat a bowl of pasta
17.03
Gigabytes of storage capacity in the first iPod
5

As of June 2025, the most streamed song on Spotify is ______.

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As of June 2025, the most streamed song on Spotify is "Blinding Lights" by The Weeknd.

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The first successful pizza order via computer was in 1974.

On December 4, 1974, a man named Donald Sherman became the first person to order pizza using a computer. Sherman — who struggled with speech because of a neurological condition — used a text-to-speech device nicknamed “Alexander” to place the order. The mechanism was designed by engineers John Eulenberg and J.J. Jackson, who worked in the Artificial Language Laboratory at Michigan State University.

As Sherman typed out his order, the computer converted the text into a robotic voice that read the order aloud over the phone. Several pizza places initially thought it was a prank call and hung up. After some repeated attempts, a local joint called Mr. Mike’s took down Sherman’s order and successfully delivered his pizza. It would be another 20 years until Pizza Hut unveiled PizzaNet — an experimental online ordering system that was among the first services to allow people to order food over the internet.

Bennett Kleinman
Staff Writer

Bennett Kleinman is a New York City-based staff writer for Inbox Studio, and previously contributed to television programs such as "Late Show With David Letterman" and "Impractical Jokers." Bennett is also a devoted New York Yankees and New Jersey Devils fan, and thinks plain seltzer is the best drink ever invented.

Original photo by ZUMA Press, Inc/ Alamy Stock Photo

We all remember the Marlboro Man: an able-bodied outdoorsman, usually a cowboy, who enjoyed a hard-earned puff from his cigarette amid a day of honest labor, his steely gaze beckoning us to "come to where the flavor is" in the land of Marlboro Country.

Except the real Marlboro Man never smoked — at least not the "original," an individual by the name of Bob Norris who featured in the brand's early TV commercials. A Colorado rancher who was offered the job after being seen in a photo with his friend John Wayne, Norris reluctantly became the face of an overwhelmingly successful advertising campaign by the Leo Burnett agency that made Marlboro the world’s top-selling cigarette brand by the 1970s. But while Norris epitomized the Marlboro Man’s image of rugged individuality, he ultimately proved too principled to last in the role; when his children asked why he was promoting a product they were forbidden to try, he reportedly hung up his Stetson after 12 years of cigarette pitch work.

Marlboros were once marketed as a women’s cigarette.

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The Philip Morris product was promoted for women beginning in the 1920s through taglines like “mild as May,” until the addition of a filter prompted a macho rebranding and the launch of the Marlboro Man in 1954.

Of course, Norris was an anomaly among his Marlboro brethren. While he lived to the ripe old age of 90, others who followed in his bootsteps learned the hard way what decades of smoking could yield, with several later publicly speaking out against the habit before dying from smoking-related illnesses. With the health risks all but impossible to ignore by the time a civil settlement was reached between the major tobacco companies and most U.S. states in 1998 (in which the companies paid out billions of dollars to compensate for taxpayer money spent on tobacco-related diseases), the Marlboro Man was sent riding into the sunset of Marlboro Country by the close of the 20th century.

Numbers Don't Lie

Numbers Don't Lie

Percentage of U.S. cigarette sales made by Marlboro
40%
Percentage of adult U.S. men who smoke, as of 2021 (10% for women)
13.1%
Dollars spent on cigarette ads and promotion in 2020
$7.84 billion
Maximum population of American cowboys, per the USDA
1 million

The first country to enact smoking regulations was probably ______, which banned tobacco use in 1729.

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The first country to enact smoking regulations was probably Bhutan, which banned tobacco use in 1729.

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The same advertising agency that conceived the Marlboro Man also created Morris the Cat.

The Marlboro Man wasn’t the only long-running mascot spawned by the Leo Burnett admen, who also unveiled Morris the Cat in the late 1960s. Discovered in a Humane Society shelter in Hinsdale, Illinois, the “Clark Gable of cats” went on to star in 58 commercials for 9Lives cat food, along the way winning two PATSY Awards for pet actors and appearing in the 1973 movie Shamus with Burt Reynolds. Like some of the notable models who portrayed the Marlboro Man for many years, Morris was enough of a pop culture icon to garner an obituary upon his death in 1978. But unlike the Marlboro Man, there’s no evidence to suggest he was harmed by the product he endorsed, and Morris continued to enjoy a prominent print, TV, and social media presence in subsequent incarnations, even running for president on a few attention-grabbing occasions.

Tim Ott
Writer

Tim Ott has written for sites including Biography.com, History.com, and MLB.com, and is known to delude himself into thinking he can craft a marketable screenplay.

Original photo by Nf3Photos/ Alamy Stock Photo

Although it may seem like something that emerged alongside ancient Euclidean geometry or Babylonian astronomy, calculus is a surprisingly recent invention — even newer, in fact, than some of the historical institutions that teach it, including Harvard University. 

Harvard was founded in Cambridge, Massachusetts, in 1636, making it the oldest operating university in the U.S. Back then, it was set up to train Puritan clergy in the Massachusetts Bay Colony, and its early curriculum focused on classical languages, theology, and logic.

Oxford University is older than the Aztec Empire.

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Education at Oxford began around 1096, and the Aztec capital of Tenochtitlan was founded in 1325.

Later on in the 1600s, across the Atlantic, mathematical heavyweights Isaac Newton in England and Gottfried Wilhelm Leibniz in Germany began working on a new kind of mathematics called calculus, a system that could precisely explain motion and change. The two scholars independently developed their respective systems around the same time in the 1660s, and each published early calculus works in the 1680s. By that time, Harvard had already been educating students for more than 40 years.

The university gradually secularized throughout the 18th century, and its religious instruction began to take a back seat to pave the way for more diverse course offerings. Still, it wasn't until the 1720s — nearly a century after Harvard’s founding — that calculus was first introduced into the curriculum.

Numbers Don't Lie

Numbers Don't Lie

Graduates at Harvard’s first commencement in 1642
9
Year the world’s oldest university, the University of al-Qarawiyyin, was established in Fez, Morocco
859
Fastest time (in seconds) anyone has mentally added 100 four-digit numbers
30.9
Harvard College tuition for the 2025-2026 school year
$59,320

The word “calculus” comes from the Latin word for “______.”

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The word “calculus” comes from the Latin word for “small pebble.”

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Harvard has a series of storied underground tunnels.

Beneath Harvard’s stately grounds lies a network of tunnels that have inspired decades of campus intrigue. Originally built to conduct heat and transport services between buildings, they’ve also long been rumored as escape routes and hiding places.

In 1968, Alabama Governor George Wallace reportedly fled from an angry crowd through the tunnels after delivering a speech, and in 1939, a suspected German spy supposedly eluded then-FBI agent Robert Tonis by vanishing into the subterranean lair. Author Jane Langton even set her 1978 murder mystery The Memorial Hall Murder in those mysterious underground tunnels. While the steam tunnels aren’t accessible to the public, a few dormitory tunnels connecting student housing are indeed open and regularly used.

Nicole Villeneuve
Writer

Nicole is a writer, thrift store lover, and group-chat meme spammer based in Ontario, Canada.

Original photo by Clovis Wood Photography/ Unsplash

Not unlike human fingerprints, the pattern of every tiger’s stripes is one of a kind. And though those markings are invariably beautiful, they aren’t just for decoration. Biologists refer to tiger stripes as an example of disruptive coloration, as their vertical slashes help them hide in plain sight by breaking up their shape and size so they blend in with tall grass, trees, and other camouflage-friendly environments. Tigers are solitary hunters who ambush their prey, so the ability to remain undetected while on the hunt is key to their survival.

Tigers are the largest cat species in the world.

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Lions may be the king of the jungle, but they aren’t the biggest cat. That title belongs to Panthera tigris, which can reach a length of 10 feet and weigh as much as 660 pounds — 100 pounds more than lions and several times as many as the average jaguar.

They’re also helped by the fact that their prey don’t see colors the way we do. Deer, for instance, can process short and mid-wavelength colors such as green and blue but not long wavelength hues such as red and orange. That means a tiger lurking in the grass won’t look bright orange — it will actually appear green to its prey, making it difficult to differentiate from its surroundings. Markings also differ among subspecies, with Sumatran tigers having the narrowest stripes and Siberian tigers having fewer than the rest of their big cat brethren.

Numbers Don't Lie

Numbers Don't Lie

Pounds of meat a tiger can consume in one sitting
88
Countries that use the tiger as their national animal
4
Pages in Judy Blume’s young adult novel “Tiger Eyes”
224
Tigers remaining in the wild
3,900

______ is home to more wild tigers than any other country.

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India is home to more wild tigers than any other country.

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Tigers have stripes on their skin as well as their fur.

It isn’t just a tiger’s fur that’s striped. Their skin is similarly marked, and the pattern mirrors that of their fur. Scientists have compared this to a beard’s five-o’clock shadow, as a tiger’s colored hair follicles are embedded in their skin and therefore visible to the naked eye. Here, too, we have something in common with these majestic creatures: Our skin is covered in a kind of stripes as well, called Blaschko’s lines, but ours are usually invisible except in the case of certain skin conditions.

Michael Nordine
Staff Writer

Michael Nordine is a writer and editor living in Denver. A native Angeleno, he has two cats and wishes he had more.

Original photo by John Benitez/ Unsplash

Samurai seem pretty old-school, a remnant of a feudal past, whereas sound recording feels like a hallmark invention of the modern era. So it’s strange to think that these things actually overlapped — and that sound recording started before the samurai disappeared. When U.S. Navy Commodore Matthew C. Perry’s “black ships” arrived in Edo Bay (now Tokyo Bay) in 1853, the end of the samurai Japan’s hereditary warrior caste — was close at hand. Perry’s maneuvers opened Japan to the West after centuries of isolation. It would take several more years, but the Meiji Restoration (1868–1889) saw the end of the samurai when feudalism was officially abolished in 1871. 

“Mary Had a Little Lamb” is based on a true story.

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Heard at piano recitals everywhere, “Mary Had a Little Lamb” is thought to be based on Mary Elizabeth Sawyer, who in 1815 nursed an injured lamb to health. The lamb then followed Mary everywhere, prompting a fellow student to write the familiar poem.

Thomas Edison’s recording of “Mary Had a Little Lamb” in 1877 is sometimes regarded as the world’s first true sound recording — but that isn’t technically true. In the late 1850s, French inventor Édouard-Léon Scott de Martinville started capturing a series of sounds, including the French folk song “Au clair de la lune” in 1860, using a phonautograph (a machine that captured the image of a sound wave using soot). Scott never designed the phonautograph to play sound back, unlike Edison’s phonograph. But in 2008, scientists from the Lawrence Berkeley National Laboratory in California successfully recreated some of Scott’s recordings, including the folk song, making the Frenchman’s experiments the first recorded sound in history — and preserved from a time when samurai still roamed the streets of Edo. 

Numbers Don't Lie

Numbers Don't Lie

Year the Japanese song “Sukiyaki” topped music charts in the U.S.
1963
Percentage of pre-1945 Japanese films that have been lost forever (many of them samurai films)
90%
Year samurai rose to power, at the end of the Heian period (794–1185 CE)
1185
Estimated maximum number of samurai circa 1868
1.9 million

The world’s oldest continuously performed orchestral music, Gagaku, comes from ______.

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The world’s oldest continuously performed orchestral music, Gagaku, comes from Japan.

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Women were also samurai warriors.

Women samurai warriors, known as onna-bugeisha or onna-musha, were a part of Japanese history for centuries. Unlike the men they fought alongside, who preferred blades such as the katana and wakizashi, women often used the more nimble naginata, which resembled a staff with a blade at one end. Their story goes back to the semi-legendary Empress Jingū (approximately 169–269 CE), who is said to have led an invasion of present-day Korea. But the most famous of these fatal females was the (perhaps also legendary) 12th-century warrior Tomoe Gozen, who was feared for her fierce fighting ability and reportedly led more than 1,000 men in battle. Today, Tomoe Gozen is the subject of legends and modern adaptations of her story, including Jessica Amanda Salmonson’s The Tomoe Gozen Saga. Other samurai women dot Japanese history until the Battle of Aizu in 1868, when Nakano Takeko led female fighters in fighting against the emperor. However, the emperor prevailed, and Nakano, along with the rest of the samurai, were consigned to history.

Darren Orf
Writer

Darren Orf lives in Portland, has a cat, and writes about all things science and climate. You can find his previous work at Popular Mechanics, Inverse, Gizmodo, and Paste, among others.

Original photo by Medhat Dawoud/ Unsplash

Apple has always been known for its design. Before its iconic logo resembled an actual apple, however, it featured Sir Isaac Newton sitting under an apple tree. This is, of course, a reference to the legend of Newton formulating his law of universal gravitation after getting bonked on the head by a falling apple — which ranks among history’s best-known “aha!” moments. The more widely accepted version of events is that Newton merely observed a falling apple, but that doesn’t make the event any less fun to ponder. In addition to the drawing, the logo featured a line from poet William Wordsworth: “Newton … a mind forever voyaging through strange seas of thought … alone.”

“An apple a day keeps the doctor away” is an ancient proverb.

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The phrase was first coined in 1913, and it’s based on a British saying that dates to 1886. Originally, the quote went: “Eat an apple on going to bed, and you’ll keep the doctor from earning his bread.”

The logo — which debuted when the company was founded in 1976 — was short-lived, however, in part because co-founder Steve Jobs felt the design couldn’t be effectively rendered in smaller versions. Soon, he hired graphic designer Rob Janoff, who came up with the logo now recognized worldwide. The original design isn’t the company’s only connection to literal apples, however. The reason Macs (short for Macintosh) are so named is because of the apple of (almost) the same name: McIntosh, project creator Jef Raskin’s favorite variety.

Numbers Don't Lie

Numbers Don't Lie

Apple’s 2021 revenue
$378 billion
Year Isaac Newton was knighted by Queen Anne
1705
Countries whose GDP is larger than Apple’s market cap (U.S., China, Japan, Germany)
4
Apple varieties in the world
30,000

Isaac Newton’s mother wanted him to be a ______.

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Isaac Newton’s mother wanted him to be a farmer.

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Devices are almost always set to 9:41 in Apple ads.

You might not have noticed it before, but ads for iPhones, iPads, and other Apple devices almost always show the clock displayed at the same time: 9:41. As with just about everything else related to the company, this isn’t a coincidence. It all goes back to Apple’s keynote events, where new products are revealed, which begin at 9 a.m. and are scheduled so that the gadget in question is first unveiled 40 minutes in. Because this timing isn’t an exact science, the extra minute is added for good measure.

Michael Nordine
Staff Writer

Michael Nordine is a writer and editor living in Denver. A native Angeleno, he has two cats and wishes he had more.

Original photo by JanPietruszka/ iStock

Despite the stereotype we’ve seen perpetuated in cartoons, the idea that mice go wild for cheese isn’t quite accurate. While mice may nibble on cheese if it’s the only available food source, they strongly prefer sugary and carbohydrate-rich options such as seeds, grains, fruits, chocolate, and especially peanut butter. In fact, a mouse’s strong sense of smell actually causes them to be repelled by some stinky cheeses. Soft cheeses also pose a choking hazard for mice due to the critter’s lack of a natural gag reflex.

The reason behind this myth is hard to pinpoint, but one theory relates to how cheese was stored prior to refrigeration. Cheese was usually kept out of the sun in a cool, dark, well-ventilated place (such as a cave or pantry) and generally wasn’t tightly sealed. In an interview with Scientific American, psychologist David Holmes suggested mice may have nibbled on the exposed cheese while searching for other food, leading to their reputation as cheese-fiends.

Cheez Whiz debuted in the United States.

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While Cheez Whiz is associated with American cuisine, it actually debuted in Britain in 1952. Kraft unveiled canned Cheez Whiz as a shortcut for preparing the English dish of Welsh rarebit. The product proved so successful that it was introduced to the U.S. market in July 1953.

The belief that mice prefer cheese isn’t a recent stereotype, but rather one that dates back millennia. The Roman philosopher Seneca, who lived in the first century CE, once wrote, “‘Mouse’ is a syllable. Now a mouse eats its cheese; therefore, a syllable eats cheese,” suggesting mice were associated with cheese as far back as ancient Rome. Shakespeare later connected mice with cheese in plays such as King Lear and Troilus and Cressida, long before Hanna-Barbera drilled it home with Tom and Jerry in the 20th century.

Numbers Don't Lie

Numbers Don't Lie

Annual U.S. cheese consumption per capita (in pounds)
42.3
Varieties of cheese on a single pizza, a world record
1,001
Species in the genus Mus (Latin for “mouse”)
38+
Oscars won by animated shorts featuring Tom and Jerry
7

Mickey Mouse was almost originally named ______.

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Mickey Mouse was almost originally named Mortimer Mouse.

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Cheese is one of the world’s most frequently stolen food items.

According to a 2011 study conducted by the Center for Retail Research, 4% of the world’s cheese ends up stolen, making it the most frequently pillaged food item. But these aren’t just single packages of cheese taken from supermarkets; there have been multiple large-scale criminal operations responsible for tens of thousands of dollars in cheese thefts, as higher-end cheeses can often fetch a pretty penny on the black market.

One notable heist took place in 1998, when £30,000 (around $90,000 today) of award-winning cheddar was lifted from a British farm. In 2022, a Dutch cheese farm lost 161 wheels of cheese valued at $23,000. Perhaps the costliest cheese robbery of all time took place in October 2024, when a U.K.-based cheese purveyor was robbed of £300,000 (roughly $397,000 today) of award-winning cheddar by a still-unknown individual posing as a wholesale buyer.

Bennett Kleinman
Staff Writer

Bennett Kleinman is a New York City-based staff writer for Inbox Studio, and previously contributed to television programs such as "Late Show With David Letterman" and "Impractical Jokers." Bennett is also a devoted New York Yankees and New Jersey Devils fan, and thinks plain seltzer is the best drink ever invented.

Original photo by Anthony DELANOIX/ Unsplash

The Eiffel Tower stands 1,083 feet tall, but it gets a bit of a boost in the summer — as many as 6 inches, to be precise. The seasonal phenomenon is the result of warmer temperatures heating up the metal and causing it to expand, making the landmark just a little more imposing. Originally built as the entrance to the 1889 world’s fair, la Dame de Fer (“The Iron Lady”) wasn't initially as beloved as she is today. Some 40 artists went so far as to sign an open letter published on the front page of Le Temps protesting the “useless and monstrous” structure that “will without a doubt dishonor Paris.”

The Eiffel Tower is the tallest structure in France.

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Though it spent four decades as the world’s tallest building, “la tour Eiffel” is no longer the tallest structure in France. That title now belongs to the Millau viaduct, which was completed in 2004 and reaches a peak of 1,125 feet — enough to make it the world's tallest bridge.

Suffice to say that the critics were ultimately in the minority, and both the tower and the world’s fair were massive hits. Even so, the structure wasn’t meant to be permanent: Gustave Eiffel, who designed the tower and lent it his name, was granted a 20-year permit before Paris took over the lease, at which point the monument was supposed to be dismantled. Due to its popularity and usefulness as a radio tower, however, it was allowed to remain a vital part of the City of Light.

Numbers Don't Lie

Numbers Don't Lie

Tons of paint applied to the tower every seven years
60
Yearly electricity (in kilowatt hours) required to power its 20,000 lights
8,800
Steps from the esplanade to the top
1,665
Year the Chrysler Building surpassed it as the world’s tallest building
1930

In 1899, the Eiffel Tower was painted ______.

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In 1899, the Eiffel Tower was painted yellow.

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The Eiffel Tower used to be the world’s largest advertisement.

From 1925 to 1936, the Eiffel Tower doubled as a billboard. French automobile manufacturer Citroën rented the monument and used 250,000 light bulbs along with 372 miles of electric cable to illuminate the company’s name in 100-foot letters, making it the world’s largest advertisement at the time. The lights were so bright that they were visible from a distance of nearly 20 miles, which was enough for Charles Lindbergh to use the tower as a beacon when he completed the world’s first nonstop solo transatlantic flight in 1927.

Michael Nordine
Staff Writer

Michael Nordine is a writer and editor living in Denver. A native Angeleno, he has two cats and wishes he had more.

Original photo by Visual Art Agency/ iStock

If you’ve never heard of olo, there’s a good reason for that: You’ve almost certainly never seen it either. The new color, described as a “blue-green of unprecedented saturation,” has been seen by only five people in a laboratory setting, as it’s beyond the range of normal human visibility. Researchers discovered the teal-like hue by stimulating the M cone in subjects’ retinas with a laser device called an Oz, which allowed them to see a color said to be more saturated than any found in the natural world. 

The retina has three cones — L detects long wavelengths, M detects medium wavelengths, and S detects short wavelengths — that typically overlap to a certain degree. By using the Oz, scientists were able to activate the M cone in isolation, making it possible to see a color never perceived by humans before.

The color orange used to have a different name.

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It was known as geoluread, which means “yellow-red.” The color as we know it today was named after the fruit.

“It was jaw-dropping. It’s incredibly saturated,” said Ren Ng, an electrical engineer at the University of California, Berkeley, who both co-authored and participated in the study, in an interview with The Guardian. “We predicted from the beginning that it would look like an unprecedented color signal, but we didn’t know what the brain would do with it.” 

Researchers believe, or at least hope, that the science that enabled the participants to see olo could one day help people with red-green colorblindness experience the full spectrum of color.

Numbers Don't Lie

Numbers Don't Lie

Shades of color the human eye can see
~10 million
Unambiguous color terms in English (white, black, grey, yellow, red, blue, green, brown, pink, orange, purple)
11
Percentage of people in the world with green eyes
2%
Main kinds of colorblindness
3

The most popular color in a 2015 survey of 10 countries was ______.

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The most popular color in a 2015 survey of 10 countries was blue.

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Hummingbirds can see colors humans can’t.

Only five people have seen olo, but it’s possible quite a few hummingbirds have seen it. They can perceive colors we can’t, thanks once again to cones. Whereas our three color-sensitive cone cells enable us to see red, green, and blue light, hummingbirds (and most other birds) have a fourth type of cone attuned to ultraviolet light.

In addition to UV light, birds may even be able to see combination colors such as ultraviolet+green and ultraviolet+red — something we humans can only imagine. Having four types of cone cells, known as tetrachromacy, is also common in fish and reptiles, and researchers believe dinosaurs possessed it as well. It’s also present in some people, though the condition isn’t well understood and scientists disagree over how common it is.

Michael Nordine
Staff Writer

Michael Nordine is a writer and editor living in Denver. A native Angeleno, he has two cats and wishes he had more.