If you asked for ketchup thousands of years ago in Asia, you might have been handed something that looks more like today’s soy sauce. Texts as old as 300 BCE show that southern Chinese cooks were mixing together salty, fermented pastes made from fish entrails, meat byproducts, and soybeans. These easily shipped and stored concoctions — known in different dialects as “ge-thcup,” “koe-cheup,” “kêtsiap,” or “kicap” — were shared along Southeast Asian trade routes. By the early 18th century, they had become popular with British traders. Yet the recipe was tricky to recreate back in England because the country lacked soybeans. Instead, countless ketchup varieties were made by boiling down other ingredients, sometimes including anchovies or oysters, or marinating them in large quantities of salt. (Jane Austen was said to be partial to mushroom ketchup.) One crop that the English avoided in their ketchup experiments was tomatoes, which for centuries were thought to be poisonous.
Although the company’s slogan was “57 varieties,” it makes way more than 57 products (and did even when the slogan was first created). Henry Heinz is said to have chosen the number because it combined his and his wife’s lucky numbers (5 and 7, respectively).
Across the Atlantic, Philadelphia scientist James Mease created the first tomato-based ketchup recipe in 1812. More than half a century later, Henry J. Heinz founded his food company in Sharpsburg, Pennsylvania. The first commercial tomato ketchups — including Heinz’s 1876 product — relied on chemicals to preserve their freshness and color, including formalin and coal tar. But around 1904, chief Heinz food scientist G.F. Mason devised an all-natural blend that included tomatoes, distilled vinegar, brown sugar, salt, and spices. With the signature formula now established, the brand was able to meet the growing U.S. demand forhot dogs, french fries, and hamburgers.
There’s a museum in Wisconsin entirely devoted to mustard.
At this Midwestern attraction, the showpiece is the Great Wall of Mustard, an assortment of more than 5,600 bottles and jars. Exhibits on the wall have been sourced from every U.S. state as well as 70 countries. The museum’s founder and curator is Barry Levenson, who began collecting mustard in 1986. The following year, while working for the Wisconsin Department of Justice, Levenson successfully argued a case before the U.S. Supreme Court — with a jar of hotel mustard in his pocket. In the early ’90s, he left law to open the original iteration of his museum, which is now in Middleton. Tickets to the National Mustard Museum are always free, and include entry to the Mustardpiece Theatre.
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The human nose is a biological wonder. It can smell up to 1 trillion odors, trap harmful debris in the air before it enters your lungs, and even help regulate emotion. But arguably its most important job is to condition the air you breathe before that air enters your respiratory tract. This means warming and humidifying the air before it passes to your throat and beyond. To do this, the nose undergoes a nasal cycle in which one nostril sucks in the majority of the air while the other nostril takes in the remaining portion. A few hours later (on average), the nostrils switch roles. This cycle is regulated by the body’s autonomic nervous system, which swells or deflates erectile tissue found in the nose. Although we don’t notice this switch throughout the day, if you cover your nostrils with your thumb one at a time, you’ll likely observe that air flow through one is significantly higher than in the other. This is also why one nostril tends to be more congested than the other when you have a cold (the nondominant one gets more filled with mucus).
The human nose is unique among primates because of our brains.
Our ancestors’ skulls underwent a massive change some 2 million to 3 million years ago. As our brains grew, facial features shrank to make room. Unlike the flush nose of a chimpanzee, our nose likely took its current, protruding shape to give the brain some extra space.
There are a few possible reasons for this nasal back-and-forth. Some scientists theorize that the cycle actually improves our sense of smell. Because scent molecules degrade at differing rates, some smells are easier to identify through fast-moving air (in the dominant nostril), while others are more easily picked out in slower currents of the nondominant, usually more congested, nostril. Very few smells can get past our nose undetected thanks to this alternating nasal superpower.
The nose with the most sensitive sense of smell in the animal kingdom belongs to the African elephant.
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The size of a human nostril is determined by climate.
Nostrils come in all shapes and sizes, and like most other parts of the human body, that’s the result of millions of years of evolution. In 2017, scientists confirmed a long-held theory that climate plays a vital role in determining the size of our nostrils. People whose ancestors hail from warm, humid climates have little need for nostrils to humidify air before it enters the lungs. As a result, their nostrils are wider. But in cold, dry climates — where air easily irritates the lining of the nose and throat — smaller nostrils create a more “turbulent” air flow, causing the air to mix in the nose. This turbulent mixing interacts with the nose’s mucus-covered lining, which warms and humidifies the air before it passes to the lungs. Over the long, grinding process of evolution, as humans traveled farther from the equator, smaller nostrils were naturally selected as better-suited for the cold and dry areas of the world.
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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.
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One small step for man took place before astronauts could even roll their suitcases across the spaceport. The first wheeled suitcase was invented in 1970, a year after the moon landing. It was the brainchild of inventor Bernard D. Sadow, who called it one of his best ideas, despite the fact that the product wasn’t immediately popular.
Mind you, this wasn’t the upright luggage we know today. “The Luggage That Glides,” as Macy’s marketed the product after buying it, rolled on its side and was pulled with a strap attached to the top. The innovation may not have been very sophisticated, but it nonetheless improved ease and convenience by adding wheels to something that could certainly use them.
That title belongs to the humble fruit fly, which the U.S. launched 68 miles into space on February 20, 1947, to study high-altitude radiation exposure.
Sadow applied for a patent in 1970 and received it in 1972. “Whereas formerly, luggage would be handled by porters and be loaded or unloaded at points convenient to the street, the large terminals of today, particularly air terminals, have increased the difficulty of baggage-handling,” the patent stated. “Baggage-handling has become perhaps the biggest single difficulty encountered by an air passenger.” That remains true today, even with the 1987 invention of the vertical Rollaboard, the now-ubiquitous style of vertical wheeled suitcases.
The world’s bestselling luggage brand is Samsonite.
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No one has walked on the moon in more than 50 years.
A dozen people have walked on the moon, but no one has done it in more than half a century. Eugene A. Cernan was the last astronaut on the lunar surface, a feat he achieved as part of the Apollo 17 mission in December 1972. He previously served as the lunar module pilot of Apollo 10.
Cernan logged 566 hours and 15 minutes in space throughout his NASA career, 73 hours of which were spent on the surface of the moon. “As I take man’s last step from the surface, back home for some time to come … America’s challenge of today has forged man’s destiny of tomorrow,” he said as he climbed the ladder for the final time.
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Pepsi has been nearly synonymous with cola for more than a century, but it wasn’t always called that. We have pharmacist Caleb Bradham to thank for the bubbly beverage, as well as its original name: Brad's Drink. Believing that his concoction had digestive benefits, Bradham sold it at his pharmacy in New Bern, North Carolina. Brad’s Drink didn’t last long, however — it was renamed Pepsi-Cola in 1898.
That honor belongs to its fierce rival, Coca-Cola, which consistently outsells Pepsi. In fact, in 2025, Pepsi came in fourth, behind Coke, Dr. Pepper, and Sprite.
The new name was partly derived from the word “dyspepsia,” a technical term for indigestion, and was meant to convey the tasty beverage’s supposed medicinal properties. Bradham trademarked the name in 1903, and the company grew exponentially over the next few years, with 240 franchises opening across 24 states by 1910. Pepsi isn’t the only major company to undergo a name change, of course — 7-Eleven used to be known as Tote’m Stores, Nike was founded as Blue Ribbon Sports, and Canon was originally called Precision Optical Instruments Laboratory, among others.
In 1989, Pepsi paid Madonna $5 million to appear in a commercial that was quickly taken off the air.
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Dr. Pepper used to be served warm.
Dr. Pepper used to be advertised as a hot holiday drink, a response to declining sales in the winter months. The original ad from the 1960s even came with helpful instructions: Simply warm the beverage in a saucepan until it steams, then pour it over a lemon slice. The result was a “distinctively different hot Dr. Pepper” and “the holiday favorite of the proud crowd,” per the festive commercial. Heating the drink to 180 degrees Fahrenheit eliminated the carbonation, leaving behind a sweet, flat flavor that was especially popular in the South.
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While there are a few human-made objects visible from space, there’s only one known example constructed by beavers: the world’s largest beaver dam, located in the Peace-Athabasca Delta of Canada’s Wood Buffalo National Park. You can’t see it from space with the naked eye, but the dam was discovered on October 2, 2007, using satellite imagery provided by Google Earth. It appears to have been built during the last five decades, as photographs taken of the same location in 1975 show limited beaver activity.
Estimates put the length of the dam at more than 2,600 feet, and based on satellite imagery, it’s been measured to cover an approximate surface area of roughly 750,000 square feet. The pond created by the dam is estimated to hold nearly 2.5 million cubic feet of water. To use an analogy Canadians would surely approve of, that’s roughly the same amount of water needed to fill 1,600 standard ice hockey rinks.
The Hoover Dam got its name in 1930, but it didn’t sit well with Franklin D. Roosevelt, Herbert Hoover’s rival and successor. At the dam’s 1935 dedication, Roosevelt referred to it as the Boulder Dam. That name stuck until after FDR’s death in 1945.
Given its remote location miles from any paved road or trail, accessing the dam requires a multiday trek through wetlands and forest. That inaccessibility poses such a challenge that only one known individual has ever visited the dam itself. In July 2014, adventurer Rob Mark completed the perilous trek, snapping a celebratory selfie with the beaver lodge behind him. Upon his arrival, he noted how difficult it is to grasp the dam’s enormity from up close, and how its sheer size is better appreciated with the photographs taken from space.
Beavers are the second-largest rodents, behind capybaras.
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China’s Three Gorges Dam slowed the Earth’s rotation.
Depending on their enormity, it’s possible for massive infrastructure projects to impact the Earth’s rotation. One such example is China’s Three Gorges Dam, which measures 600 feet tall and 7,500 feet long and spans the Yangtze River. When filled, the dam’s reservoir is able to hold 10 trillion gallons of water.
In 2005, NASA scientist Benjamin Fong Chao calculated that a completely filled reservoir would slow the Earth’s spin, increasing the length of each day by 0.06 microseconds (or 60 billionths of a second). This is caused by the redistribution of mass away from the center of Earth’s rotation, which makes the planet twirl less fluidly. As water is raised higher above sea level, it impacts the Earth’s moment of inertia and causes the planet’s rotation to slow.
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The City of Brotherly Love has clear-cut claims on many food origins — cheesesteaks, stromboli, and even root beer. But ironically, Philadelphia Cream Cheese is not from Philly. The iconic dairy brand secured its misleading name (and gold-standard status) thanks to a marketing ploy that’s been working for more than 150 years … and it’s all because of Pennsylvania’s reputation for impeccable dairy. Small Pennsylvania dairies of the 18th and early 19th centuries were known for using full-fat milk and cream to make rich cheeses — in contrast to New York dairies, which mostly used skim milk — and because the perishables couldn’t be easily transported, they gained a reputation as expensive luxury foods. So when upstate New York entrepreneur William Lawrence began making his skim milk and (for richness) lard-based cream cheese in the 1870s, he needed a name that would entice customers and convey quality despite it being made in Chester, New York, and not Philadelphia. Together with cheese broker and marketing mastermind Alvah Reynolds, Lawrence’s cheese was branded under the Philadelphia name in 1880, which boosted sales and promoted its popularity with home cooks well into the early 1900s.
Cream cheese and Neufchâtel cheese are the same spread.
Both kinds of cheese are white, soft, and come in foil-wrapped blocks, but they’re not the same. Neufchâtel (named for a town in France) has less fat, giving it a slightly tangier flavor.
Lawrence is often credited with inventing cream cheese, and culinary lore frequently cites its creation as an accident. But some food historians say he wasn’t the first person to concoct the cheesy spread — recipes for it had been circulating for some time in newspapers and magazines. Lawrence did, however, create the first commercial cream cheese factory, which made the product accessible to home cooks. Lawrence eventually left the dairy industry for politics, becoming the mayor of Chester, but his legacy remains in every foil-wrapped block found in an American fridge.
Famed Philadelphian Benjamin Franklin once drafted a recipe for milk punch, a curdled alcoholic drink.
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Cream cheese has been wrapped in foil since the 1880s.
Besides the whipped or flavored versions that usually come in plastic tubs, most American cream cheese comes in a foil-wrapped block — and it’s almost always been that way. William Lawrence’s first mass-produced cream cheeses were wrapped in thick tissue paper commonly used by cheesemongers. But a few years into production, the rebranded Philadelphia Cream Cheese of the 1880s opted for foil packaging that helped the moldable cheese keep its shape — and more importantly, provided a firm wrapper that was an easier surface on which to print the brand name. Today, Kraft (the current owner of the Philadelphia brand) says the foil helps retain moisture and freshness.
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Tomatoes: so easy a potato can grow them. Well, not quite, but the two do occasionally join forces and result in the aptly named “pomato” plant. That two-for-the-price-of-one hybrid occurs when a tomato plant is grafted onto a potato plant, which is relatively easy to do since both belong to the Solanum genus of the nightshade family.
The pomato isn’t its own fruit, however — it’s a plant that grows both foods at the same time: tomatoes on the vine and potatoes under the soil. Peppers, eggplants, and tobacco are also members of the Solanum genus, and tomato plants can be grafted onto them as well.
They really are easy to grow, hence why residents of all 50 states — not to mention more than 125 countries — do so.
Nicknamed the “ketchup ’n’ fries” plant and sometimes called “tomtatoes,” these plants have been grown since at least 1833. In addition to the novelty of growing two things at once, pomatoes can benefit from both plants’ natural advantages: potatoes’ cold resistance and tomatoes’ heat resistance. The potatoes and tomatoes grown from these hybrid plants don’t taste any different than their normal counterparts, but they are more convenient to grow.
Tomatoes are believed to have originated in Peru and Ecuador.
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Heinz ketchup has a speed limit.
As the brand practically synonymous with ketchup, Heinz has a reputation to uphold. A big part of that image is the consistency and viscosity of its flagship product, which is meant to be thick enough to pour onto your fries at a diner by turning the bottle upside down but not so smooth that the ketchup splatters everywhere.
As part of its quality control process, the company has even imposed a speed limit on the condiment of 0.028 mph, which is checked at its factories. That’s the exact speed at which Heinz ketchup should move when poured upside down from its bottles. This speed limit even inspired a promotional campaign in collaboration with Waze, in which anyone forced to go 0.028 mph while stuck in traffic could get a free bottle of ketchup.
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Michael Nordine is a writer and editor living in Denver. A native Angeleno, he has two cats and wishes he had more.
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When the “Mona Lisa” was stolen from the Louvre on August 21, 1911, the art world immediately went into mourning — and began wondering who was behind the dastardly deed. One man soon under suspicion was none other than Pablo Picasso, whose name was given to the authorities by Honore-Joseph Géry Pieret, the former secretary of Picasso’s friend (and famed poet) Guillaume Apollinaire. Pieret had previously stolen at least two Bronze Age Iberian sculptures from the Louvre and sold them to the then-up-and-coming cubist artist, who used them as inspiration for his painting “Les Demoiselles d’Avignon.” (At the time, the Louvre security was rather lacking; the paintings weren’t even bolted to the walls.) A terrified Picasso and Apollinaire were eventually brought to court, where it was determined that Picasso was indeed in possession of stolen art — just not the “Mona Lisa.” (The Iberian statues were quickly returned, and the judge let both Picasso and Apollinaire off with a warning.)
Though the painting’s subject is traditionally thought of as being Lisa del Giocondo, the wife of a wealthy silk merchant, some believe it's none other than a version of Leonardo da Vinci himself.
The search for the mysterious “Mona Lisa” took two years, during which time its popularity grew exponentially as reproductions were splashed across newspapers worldwide. In December 1913, Vincenzo Peruggia — an Italian employee of a firm that cut glass for the Louvre — emerged as the real thief after he tried to sell the painting to an antique dealer in Florence. (Peruggia is said to have believed that the “Mona Lisa” rightfully belonged to Italy and expected a reward for “returning” it.) Fortunately, the antiques dealer called the police. Peruggia later served eight months in prison for his crime.
Picasso’s first word was “piz,” which means “pencil.”
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Napoleon once hung the “Mona Lisa” in his bedroom.
When the portrait (painted by Leonardo da Vinci in 1503–1519) was first displayed at the Louvre in 1815, it didn’t take long for admirers to become smitten by it — and her. Shortly thereafter, a number of “suitors bearing flowers, poems, and impassioned notes climbed the grand staircase of the Louvre to gaze into her ‘limpid and burning eyes,’” according to Dianne Hales, author of Mona Lisa: A Life Discovered. It wasn’t just museumgoers who developed a fancy for the painting, though: Napoleon once hung it in his bedroom and referred to its subject as “Madame Lisa.” Years later, Hales adds, he became “infatuated with a young Italian woman who bore a remarkable resemblance to the lady in the painting.” That woman was Teresa Guadagni, who just so happened to be a descendant of Lisa del Giocondo, the actual subject of da Vinci’s masterpiece.
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Michael Nordine is a writer and editor living in Denver. A native Angeleno, he has two cats and wishes he had more.
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Near the small town of Gryfino in northwestern Poland is a forest unlike any other. It’s not the biggest or the tallest, but it just might be the strangest. In this forest stand about 400 pine trees that have all been uniformly deformed into a shape resembling the letter “J.” These trees are bent by about 90 degrees at the start of their trunk, and then slowly grow upward some 50 feet, creating a curve that can be nearly 10 feet long in some cases. The effect is so stunning that the forest earned the nickname Krzywy Las, or “Crooked Forest,” and has become a significant tourist attraction. But perhaps the strangest aspect of this natural phenomenon is that no one is exactly sure why the trees are growing like this in the first place.
The first appearance of the word “wódka,” the Polish spelling of the famous liquor, appears in 1405 court documents from the Palatinate of Sandomierz in Poland.
Estimates show that these crooked pines were likely planted sometime in the late 1920s or early 1930s, though no records show who planted them. While some have theorized that a bizarre snowstorm or a strange effect of the Earth’s gravitational pull somehow deformed the trees, the leading theory is that their odd shape was created by human hands. This theory argues that local foresters interrupted the trees’ growth when the plants were between 7 to 10 years old, forcing them to bend so that furniture and boats could be fashioned out of their unique shape. But with the outbreak of World War II and the invasion of Poland in 1939, the trees were abandoned and left to grow into their famously crooked shapes. Sadly, many of these trees are now dying (perhaps partly as a result of visitor traffic) and so the Gryfino Forest District has begun a revitalization project by setting aside two 10-acre plots for recreating these crooked pines. The project will experiment with planting seeds from existing crooked pines to observe any unusual traits. The forest service also is clearing away the tops of some dead trees that pose hazards — while leaving behind their characteristic curve for tourists to enjoy.
Groups of trees that don’t stand up straight are sometimes called “drunken forests.”
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There are several dozen trees living in the U.S. that have been to the moon.
In February 1971, NASA astronauts Alan Shepard and Edgar Mitchell landed on the moon at the apex of the Apollo 14 mission. Astronaut Stuart Roosa was orbiting overhead in the command module, and packed away in his personal kit were seeds from five tree varieties — loblolly pine, sycamore, sweetgum, redwood, and Douglas fir. This lunar journey was part of a joint experiment between NASA and the U.S. Forest Service to test the effects of zero gravity on seeds and their subsequent growth into trees. After Apollo 14 returned safely to Earth, these seeds were eventually planted throughout the U.S., where they became known as “moon trees.” One was planted at the White House, and many others throughout the country in state capitals and parks. (Scientists never found evidence that their trip to space had affected the seeds or trees.) The project was mostly forgotten as the fervor surrounding the Apollo program subsided, but in 1996 NASA astronomer and archivist David Williams received an e-mail from a third grade teacher in Indiana about a nearby “moon tree.” Fascinated by this lost piece of NASA history, Williams began cataloging the location of these arboreal space voyagers. Today, you can visit several dozen “moon trees” that are surviving and thriving across the U.S.
Darren Orf
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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.
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What’s the most you’ve ever lost in a coin toss? For Asa Lovejoy, it was the opportunity in 1845 to name the city he’d recently established with Francis Pettygrove. The two decided to settle their disagreement as to what their new land claim should be called with a two-out-of-three coin flip that Pettygrove won. Pettygrove chose “Portland” because he hailed from the city of the same name in Maine; Lovejoy had intended to name the place after his hometown of Boston.
That would be Salem, though it wasn’t always the case. Oregon’s government seat moved from Oregon City to Salem to Corvallis before finally settling in Salem for good in 1855. Portland is the most populous city, however.
Now known as the Portland Penny, the one-cent piece used in the fateful toss was minted in 1835 and retrieved by Pettygrove after his victory. It remained with him when he founded Port Townsend, Washington, and was eventually given to the Oregon Historical Society, which now keeps it on display. Despite his loss, Lovejoy went on to a distinguished political career. He was elected mayor of Oregon City in 1845, served in the provisional legislature from 1844 to 1848, becamespeaker of the Oregon Territory House of Representatives in 1849, and was a delegate to the Oregon Constitutional Convention in 1857. He and Pettygrove both have parks named after them in Portland, which also has a Pettygrove Street.
Oregon grows 99% of America’s commercial crop of hazelnuts.
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Portland used to be nicknamed “Stumptown.”
Just as you can’t make an omelet without breaking a few eggs, you can’t expand a city in Oregon without cutting down a few trees. Portland grew at such a rapid rate in the mid-19th century, in fact, that there wasn’t initially time to remove all the stumps left over after removing said trees — leading the city to be known for a time as “Stumptown.” Though this wasn’t meant as a compliment, it has become an affectionate nickname for the city that has since been used by a Portland-based coffee company as well as a short-lived crime drama. Portland’s other nicknames include Rip City, Beervana, and the significantly lovelier City of Roses.
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Michael Nordine is a writer and editor living in Denver. A native Angeleno, he has two cats and wishes he had more.
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