Slow pour-over coffee resists the haste of 'espresso' and commodification of drip

Different brewing methods require different grinding methods

With so many brewing methods—AeroPress, Moka Pot, and French press to name a few—knowing the right grind size for your coffee beans is essential. Danish coffee expert Asser Christensen, also known as the Coffee Chronicler, explains how grinding works and recommends the best grind choice for different coffee makers.

A historical deep dive into everything coffee

Can’t get enough coffee? Join documentarian James Harper and historian Jonathan Morris for an immersive dive into the history of everyone’s favorite beverage. From the highlands of Ethiopia to the streets of Vietnam to Viennese cafes, you’ll travel with the humble coffee bean as it spreads across the globe.

Understanding the distinctions between coffee types

If you’ve ever felt overwhelmed looking at a coffee shop menu, you're not alone. Here's a breakdown between common coffee styles. Click through the link to see similar guides to espresso and cold drinks.

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."

Explaining the Leidenfrost effect, where water can hover and move against gravity

Water droplets can glide across surfaces whose temperatures are well above water's boiling point. This heat instantly vaporizes the bottom of the droplet, creating a layer of steam that the rest of the droplet rides and bounces upon. This can be seen when sprinkling water on skillets to determine if the surface is hot enough to cook on.

After the Boston Tea Party, colonists switched to coffee, which became the main morning drink for revolutionaries.

Coffee gives you energy, but it ultimately makes you more tired

The caffeine in coffee delays your brain's fatigue signals. Caffeine blocks adenosine, a compound that builds up as you burn energy and signals rest. Once caffeine wears off, adenosine floods back, leaving you even more tired.

How tea gets made

Tea is one of the most consumed beverages in the world, and this video walks us through the process of supplying it from farms to our mugs. Workers handpick leaves, ferment them, and dry them as part of this involved operation. Follow along for a scientific understanding of the many steps it takes to produce tea and appreciate the detail and effort to create its flavor, aroma, and color.

Exclusionary ads can help win over customers, some marketers argue

Slogans like "if you don't like dark roast, this coffee isn't for you," also known as "dissuasive framing," can entice specific groups of customers, some marketers say. The shift comes from the perceived authenticity of a company admitting that a product is not perfect for everyone.

'Slow productivity' as a humane approach to work

Work is increasingly encroaching on every part of our lives, while digital technologies enable supervisors to micromanage every part of an employee’s day. “Slow productivity” is a movement to alter the pace and quality of one’s work to avoid burnout and provide a more humane approach to work.

The benefits of sous vide: cooking food in bags immersed in water

Through this technique, food can be prepared to precise temperatures lower than those of open flames, without the risk of overcooking, with less oil, fat, and salt, and without requiring ongoing attention. By allowing for long cooking times, tougher cuts of meat can also be prepared at lower temperatures.

High freezing speed restricts the development of gritty crystal chunks in ice cream

For this reason, ice cream does not maintain its smoothness when refrozen in a traditional freezer over several hours. The smooth texture is also made possible by balancing fat, sugar, and emulsifiers.

Explaining concentrate and how concentrate-derived juice differs from its source

Developed to reduce the volume of goods—thus lowering storage and shipping costs—the concentration process uses pressure and heat to remove water, pulp, and skin from fruits. Concentrates provide significant flavor, sugar, and calories to foods in small quantities, but do not retain most of the fiber, vitamins, and other nutrients from the source fruit.

Beats emphasized the importance of 'spontaneous prose'

Beat writer Jack Kerouac believed literature should aim to be more like jazz, using improvisation to burrow down to the root of the subconscious. In this video from the University of Pennsylvania’s Modern and Contemporary Poetry course, Professor Al Filreis directs a conversation of Kerouac’s manifesto, “Essential of Spontaneous Prose.”

In Japan, elders lead toasts

Older family members and colleagues, or senpai, are expected to take the lead at formal gatherings, pouring drinks and offering toasts. Younger people should accept pours by holding their glasses with both hands and waiting to drink until their older adults have done so. Finally, before drinking, participants should say “kampai!”

Understanding time dilation

The faster you go, the slower time ticks for you. And the stronger the gravitational field acting on you, the slower time ticks for you. These phenomena – collectively called time dilation – were first explained by Albert Einstein’s theories of general and special relativity. In this 11-minute video, beloved astrophysicist Neil deGrasse Tyson explains them to comedian Chuck Nice.

How smooth jazz took over the '90s

As jazz entered the '70s, it was at a crossroads. While the genre's figureheads explored fusion and free jazz, which intentionally flouted mainstream convention, other artists began veering towards pop. Eventually, that sound would be called "smooth jazz."

The history behind New Orleans' drive-thru daiquiris

New Orleans attracts millions of annual visitors with its freewheeling drinking culture, reaching its apex during the weeks-long Mardi Gras celebration. But even the most intemperate tourists might be confused by the city's drive-through daiquiri stands. This resource offers a brief history of the quirky staple and explains how it has survived changes in the law.

Lava flow viscosity plays a significant role in the type of volcano formed

Thin, runny flows spread quickly before cooling, producing expansive layers that build over time into wide shield volcanoes. The ejection and fast hardening of thicker lava flows and pyroclastic material create steep slopes and the characteristic cone shape of composite volcanoes.

Paying a fee to delay paying back a loan in full is called 'rolling over' the loan

Borrowers sometimes roll over loans when they aren't able to pay back the full principal balance and accrued interest. A rollover extends the amount of time the borrower has to repay the loan, but does not decrease the amount of money the borrower has to pay back.

Le Crueset's France factory makes 10,000 of its $400 cast-iron pots each day

After nearly going bankrupt in the 1980s, the company expanded its color options and product line to boost sales—something that's also fueled the brand's fanaticism. The Le Crueset Dutch oven was among Julia Child's kitchen staples, and the 2009 hit "Julie & Julia" reintroduced Child's famous Dutch oven to a new generation, resulting in a sales boom.

For centuries, it was common to sleep in two shifts: a few hours at the beginning of the night, and a longer period beginning around midnight

Dave Asprey is considered one of the fathers of modern biohacking

Entrepreneur Dave Asprey wants to live longer than anyone else, a desire that's led him to biohacking. Asprey relies on supplements, stem cell treatments, rigid dieting, exercise, and more. The inventor of Bulletproof Coffee has no medical or nutritional training, though that's not unusual among biohacking's DIY experimenters.

Like nuclear power, US geothermal power plant construction stalled for decades

Development and investment into geothermal energy took off in the 1960s. However, by the 1980s, companies repeatedly failed to find reservoirs of hot water when exploring new locations, and investors lost interest in the expensive drilling required. By the 2020s, technological advancements had finally helped mitigate exploration risk and expand viable drilling locations.

Experience what it was like to live during Watergate's unfolding scandal

Slate's "Slow Burn," hosted by Leon Neyfakh, revisits Watergate through archival audio and interviews, spotlighting overlooked figures, vividly depicting the scandal's slow escalation, and drawing parallels to today's political climate.

What exactly is déjà vu?

While people have wondered about déjà vu for a long time, only recently have scientists started experimentally investigating what might trigger it. Read this deep dive into the latest science.

COBOL was partly derived from Grace Hopper's FLOW-MATIC programming language

The Common Business-Oriented Language was developed for business data processing, supporting precise decimal calculations and an English-like syntax. Able to work across operating systems and hardware environments, COBOL and its newer versions support 80% of in-person credit card transactions and 95% of all ATM transactions.

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

Hear 50 years of iconic hip-hop samples, the genre's foundational looped tracks

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

The history of many kitchen appliances involves unexpected discoveries and applications, including wartime radar turned hamster defroster and replacing an 'ice king' with heat-stealing boxes.

The boiling temperature of water decreases with increasing elevation because the molecules need less energy to overcome the lower atmospheric pressure associated with thinner air.

Listen to an in-depth conversation on the links between Parkinson's disease and herbicide exposure and the challenging pace of scientific investigation.

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

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

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.

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.

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

An initial public offering or 'IPO' is the process of a private company becoming public by putting shares of the company on the stock market for purchase.

See photos of Meteora, a mountainous site in central Greece, home to 14th-century monasteries perched atop soaring outcroppings.

Watch how algorithms can be designed to train themselves and self-improve without human input, to the point where the optimized code is too complex for programmers to understand.

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.

'Shogun,' a 1980s TV series, helped popularize sushi in the US by stimulating an American interest in Japanese culture.

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

Cultural norms about how to handle the bodies of loved ones in communities in West Africa have hampered Ebola responses.

Apeirophobia is an overwhelming fear of living forever, perhaps stemming from the brain's inability to conceptualize an infinite life.

Visualize the path of every solar eclipse from 1900 to 2099 and see what each looks like when observed from different locations on Earth.

For centuries, Niagara Falls has been a magnet for daredevils seeking to conquer one of nature's most powerful wonders, with its 200-foot drop and water rushing at 32 feet per second with 280 tons of force.

US housing costs have risen by roughly 175% between 1991 and 2026—but a growing number of Gen Zers are becoming homeowners anyway. In 2025, 4% of homebuyers were Gen Z, up from 3% the year before.