Colored paint lines on new tires mark different types in the factory

Power lines are dotted with large, brightly colored balls to improve the visibility of these thin wires to helicopters and small planes and help prevent potential crashes.

Trademarks are a form of consumer protection

Trademarks help brands distinguish their products from competitors, but they also give consumers clarity around the product they are buying and where it comes from. Distinguishable names help prevent consumer confusion and maintain a consumer's ability to choose their preferred product and brand.

Power lines are dotted with large, brightly colored balls to improve the visibility of these thin wires to helicopters and small planes and help prevent potential crashes.

Detroit-style pizza's recipe nods to the Motor City

Legend has it that the rectangular pies were originally baked in blue steel pans intended to hold nuts and bolts in auto factories. The sauce poured across the top of the pies, meanwhile, is done so in straight lines called "tire tracks."

F1 pit crews change tires in less than 3 seconds

Roughly 16 people cooperate in a highly coordinated sequence of events to swap tires mid-race without losing the driver any time. Watch a slowed-down explanation of each person's job in the crucial pit lane moment.

The Michelin Guide was intended to increase demand for tires

The first Michelin Guide was released in 1900 to increase demand for Michelin's tires by encouraging recreational travel. The guides included road maps and recommendations for mechanics, hotels, and restaurants. Nearly 35,000 copies of the first guide were distributed—at a time when there were fewer than 3,000 cars in France.

The centuries-old history of titanium white goes back to the Inca

Titanium white can be found in items ranging from paint to pills. Though it was created in New York in 1908, the pigment was first used hundreds of years earlier by the Inca, according to this article.

The science behind why some noises have color names

Different noise colors (white, brown, pink, blue) have been proven to affect mood and focus. An audiologist explains that these sounds are named after specific light wave frequencies. While individual preferences vary, certain noises consistently impact sleep, stress reduction, cognitive performance, and problem-solving. The article highlights how these sounds can enhance productivity, relaxation, and even gaming experiences.

NASCAR's latest car design brings back its 'stock' roots

In 2022, NASCAR unveiled its Next Gen car, and the changes were some of the most significant in decades. Teams no longer design each car part, but purchase them from a single source, bringing greater parity.

Red and blue election maps are a modern media invention

The red–blue color scheme used on election night maps emerged in the 20th century as television networks adopted color graphics to make results easier to follow. The association of red with Republicans and blue with Democrats later became standardized.

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

Symmetric patterns of magnetic stripes seen on either side of mid-ocean ridges

The symmetry provides evidence of seafloor spreading, where new oceanic crust is created at mid-ocean ridges, which pushes older ocean crust away on either side. Matching the pattern to magnetized material in rocks on Earth’s surface provided a timeline of ocean floor recycling.

The complexity of classifying a tree

It may seem obvious to us when we see a tree, but very specific characteristics cause scientists to distinguish trees from other types of plants. This video provides a visual and verbal explanation of distinctions that separate trees from other plants like shrubs or herbs. See a scientific breakdown of these traits.

Henry Ford pioneered the first moving assembly line, building on earlier iterations of the manufacturing method

Although cars existed before the Model T, manufacturing them required a group of highly specialized mechanics. The Model T was so affordable in large part because of the moving assembly line, which cut down the total manufacturing time of the car and replaced specialized workers with general laborers who performed repetitive tasks.

In the '70s, graffiti moved to subway cars

Unlike static walls, the silver cars moved throughout the city, like a canvas in perpetual motion. That made them highly desired by graffiti artists, especially because tagging them was considerably more difficult and, in turn, more impressive than a simple tag in an alley.

Billboard's early music charts were racially segregated

In 1942, the publication introduced the Harlem Hit Parade chart, listing the top 10 records sold at select record stores in the majority-Black borough of New York. In 1945, it changed the chart’s name to Most Played Juke Box Race Records, using the music industry term (“race record”) that identified recordings by Black artists, even if they played music markedly similar to the white artists on the other charts.

Japan is home to intricately designed region-specific manhole covers

The country's eye-catching sewer covers were a form of brand rehabilitation, intended to change people's perceptions of the sewer. Additionally, they're easy to see at night, making firefighters' nighttime duties a bit easier.

Laser-etched electric charges guide toner during laser printing

When sending a print job, the file data generates an image that a laser maps positively charged regions onto a drum separately for each color toner. Once the negatively charged toner is applied where it was electrically attracted, heat and pressure fuse it onto the paper.

See how fireworks are made and learn how metals like magnesium and copper are responsible for different colors.

A primer on reading the rock layers of roadcuts

Road construction often requires cutting through layers of rocks, coincidentally exposing millions of years of rock formation. This simple guide introduces basic rock types, what causes curves and folds, and the major rock formations in regions around the US.

Nearly all natural rubber comes from cloned trees in Southeast Asia

Synthetic rubbers have been unable to mimic the strength and tolerance to heat and pressure provided by natural rubber. This makes rubber trees essential to major global infrastructure, despite being vulnerable to disease due to a lack of genetic diversity.

Hydroplaning occurs when a vehicle's tires lose traction on wet roads

Water depth must be over 0.1 inches, and vehicle speed must exceed 50 mph for hydroplaning to occur. Tire wear, size, and tread patterns affect the likelihood of hydroplaning, which is more common for all-wheel drive vehicles.

The first shoes Jordan got from Nike were against NBA regulations

The initial mockups Nike gave Jordan were entirely black and red. The NBA had strict rules around shoe color at the time that these colors violated. The story goes that Nike paid the $5K fine for each game that Jordan wore the shoes in, but there’s no photographic evidence that Jordan ever wore them in a game at all. Regardless, Nike created the “banned” ad, capitalizing on the controversy.

A picket line is a boundary created by workers on strike

Traditionally, a picket line is a physical line outside a workplace, but today, it can also be digital (think: boycotting a company’s website).

Cultivate your coffee taste with this interactive flavor wheel

Coffee is one of the more complex things humans consume, and taste can vary drastically based on bean genetics, roasting technique, and more. Using this flavor wheel, you can more accurately describe your coffee's aroma by starting from the center and moving outward.

See how Coca-Cola bottle designs have changed over the years

The shape of the Coca-Cola bottle has been given many nicknames over the years, including the "hobbleskirt" bottle, after a fashion trend in the 1910s when tapered skirts that were narrow below the knees were popular.

See photos of rare spotless giraffe born at zoo

A spotless giraffe was born at a zoo in Tennessee in the summer of 2023, with experts claiming the specimen is the only solid-colored animal of the species with genes for "reticulation," or the normal patchwork look. The phenomenon is so rare many...

Some coin denominations have ridges on their sides in part to prevent counterfeiting

You may have noticed that dimes and quarters feature small ridges on their sides that other coins, like pennies and nickels, don't have. This video can help you learn more about why the practice, called "reeding," was first started—and why it's still used today.

When you complete a CAPTCHA on a website to prove you are human, you may be unknowingly training algorithms for self-driving cars, whose systems require training data to help identify crosswalks, bicycles, and other outdoor objects.

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

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

The Great Salt Lake's distinct dual coloration results from high-salinity organisms that only live in the northern portion and produce a purple protein.

A century of Billboard issues documenting the evolution of popular music.

All rainbows are 'raincircles' caused by water droplets separating white sunlight into a spectrum of colors, but Earth's surface blocks the bottom half of the circle from our line of sight.

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

Netflix profits when you're not watching, and its movies are designed that way—read a detail-rich critical essay exposing lesser-known Netflix takes

Budweiser stores yeast derived from the original 1800s strain in a secret bunker, which only the Head of Yeast Management can access—not even the CEO

Dorothy's famous entrance into Oz in 'The Wizard of Oz' relied on analog tricks, including a body double and sepia-toned paint, as much as it did on technology

Domino's Pizza's 30-minute delivery guarantee was responsible for the chain's 1980s surge, but it was discontinued after the company was found liable for delivery driver accidents.

Objects can be 3D printed with light by projecting 2D computerized tomography (CT) scans onto rotating cylinders of resin, which solidify upon exposure.

Poison ivy's characteristic rash is caused by an allergic response to an oily compound in the plant called urushiol.

When a Paris department store hesitated to sell Estée Lauder's perfume, she 'accidentally' broke a bottle, causing the smell to spread throughout the store and shoppers to start asking to buy the scent.

Fear or disgust related to clusters of holes and cracks, called trypophobia, may stem from evolutionary processes to help us avoid pathogens.

Long before Major League Baseball began allowing instant replay for balls and strikes, an umpire reluctantly used the technology to determine whether a hit was a home run, a move that inadvertently ushered in a new era for the sport.

To reduce wrinkles in clothing, research recommends gentle wash cycles with more water and tumble drying with smaller loads and longer times.

While the first exchange-traded fund (a 'basket' of different assets that can be bought and sold on a stock exchange) in the US only launched in 1993, the global ETF market has grown to more than $10T in the short time since.

Bone marrow (soft tissue found inside certain bones) generates roughly 500 billion new blood cells each day

The price of gas is a composite made up of several different factors, with the federal gas tax making up less than 20% of what drivers pay at the pump.

The American Society of Civil Engineers' infrastructure report card gave the US a C in 2025, its highest grade since the project launched in 1998.

Abraham Lincoln was almost assassinated weeks before his inauguration as he traveled from Illinois to DC through Baltimore in 1861; it took two independent claims for Lincoln to be convinced the threat was real