What Is an API, and How Does It Work?
Every time you check the weather, log in with Google, or split a bill in an app, an API is quietly doing the work. It is the plumbing that lets software talk to other software. Here is how it works.
What Is El Niño, and How Does It Work?
A patch of the Pacific warming by a degree or two can dry out Australia, soak parts of South America, and nudge up the whole planet’s temperature. That patch has a name: El Nino. Here is how it works.
What Is a Light-Year, and How Far Is It?
Despite the word year, a light-year measures distance, not time. It is how astronomers cope with a universe so big that miles and kilometers stop making sense. Here is what it really means.
What Causes Lightning, and Why Thunder Follows
A lightning bolt is hotter than the surface of the Sun and lasts a fraction of a second. It starts with something as ordinary as ice crystals bumping together inside a storm cloud. Here is how.
How Does Compound Interest Work, and Why It Matters
Compound interest is often called the closest thing to free money, and also the reason credit card debt spirals. It is the same force, working for you or against you. Here is how it actually works.
What Is Ocean Acidification, and Why It Matters
The ocean has quietly absorbed a huge share of our carbon dioxide, and that favor is changing the water itself. Ocean acidification is the slow souring of the sea, and it hits shellfish and coral first.
What Is a Connectome? Brain Mapping Explained
Scientists have now mapped every neuron and connection in an adult fruit fly’s brain. It sits inside a bigger quest: to draw the complete wiring diagram of a brain, a connectome. Here is what that means.
How Do the Tides Work, and Why Two a Day?
Twice a day the sea climbs up the beach and slides back down, on a schedule set by an object 384,000 kilometers away. Here is how the Moon, and a bit of the Sun, moves the whole ocean.
Why Do We Get Fevers, and When to Worry?
A fever feels like your body turning against you, but it is usually your body fighting for you. Here is why you run a temperature, and the signs that mean it is time to call a doctor.