Every Specialty Digest Story, One Feed
All of our reporting and essays, across every department, in a single reverse-chronological stream. Filter by section to narrow it down.
Why Do We Dream?
Nobody knows with certainty why we dream, but decades of sleep research point in a consistent direction: dreaming looks like…
What Is 5G, and How Is It Different From 4G?
5G is faster and far more responsive than 4G, but the gap between them isn’t one upgrade — it’s a…
How Do Animals Hibernate?
True hibernators survive winter by dropping their metabolism, heart rate, and body temperature far below normal and staying in that…
What Actually Causes High Blood Pressure?
High blood pressure is almost never caused by one single thing — it’s usually a combination of biology, habits and…
What Is the Placebo Effect?
The placebo effect is real: a fake treatment, such as a sugar pill or a saline injection, can trigger a…
Why Does the Moon Change Shape?
The Moon changes shape because it doesn’t produce any light of its own — what we’re actually seeing is sunlight…
Why Do We Celebrate New Year’s on January 1?
January 1 isn’t a fixed point of astronomy the way a solstice or equinox is — there’s no natural reason…
How Does Your Credit Score Actually Work?
Your credit score is a three-digit number, typically between 300 and 850, calculated from your credit history to predict how…
How Does the U.S. Patent System Actually Work?
The U.S. patent system works as a formal trade between an inventor and the government: the inventor discloses exactly how…
What Is Bootstrapping a Startup?
Bootstrapping means funding a startup through customer revenue, personal savings, credit cards, or other self-generated resources instead of raising money…
How Does Facial Recognition Actually Work?
When your phone unlocks the instant it sees your face, it is not comparing photos the way a person would.…
How Do Volcanoes Actually Form?
Volcanoes form when molten rock, or magma, forces its way up from deep underground to the surface, and where that…
What Actually Caused the French Revolution?
The French Revolution was triggered by a bankrupt monarchy, a tax system that spared the people best able to pay,…
What Causes Lightning and Thunder?
Lightning is a brief, violent transfer of electricity between a cloud and the ground — or between two parts of…
What Is Supply and Demand?
Supply and demand describes the constant back-and-forth between how much of something people want and how much of it is…