How did daytime dramas like “Guiding Light” and “General Hospital” become known as “soap operas”? It's all thanks to commercials.

BIG QUESTIONS
Space shootouts are possible. The Soviets proved it.
The days of police badges and lightsaber spoons lurking in boxes are over. Kids now get QR codes. What happened?
Engineers have had to come up with some interesting ways to generate oxygen for astronauts in the vacuum of space.
You can always avoid the issue by spelling out “St. Patrick’s Day,” but here’s how to properly abbreviate it.
Learn about the SAT and ACT differences, including test format, scoring systems, and duration.
This St. Patrick’s Day, discover the origins of this old Irish idiom and how it all ties back to the Blarney Stone in Ireland.
Easter always happens sometime in March or April—but the date is never the same each year.
Tariffs are a means for one country to wrangle better trade terms with another country and to protect domestic manufacturing. Unfortunately, they don’t always deliver.
Misunderstanding room temperature can have some surprisingly serious consequences.
And how you can tell a two-way mirror from a standard one.
Ever wondered why canned soda tastes different from one in a plastic bottle? Learn how container materials impact flavor.
Find out why Aldi‘s quarter system is a smart way to save money and ensure carts are always available.
Aphantasia is a little-understood phenomenon that affects about 4 percent of the population. There are several theories behind what causes it.
Hubcaps might seem purely decorative, but they serve an important purpose for your car.
Here's what’s happening in your body when you eat ice cream or drink a chilled beverage too fast.
To predict quakes, scientists have to understand how they occur, what happens just before and during the start of one, and whether it shows signs that movement is imminent. So far, none of those things is known.
A car accident in a movie usually ends in a huge fireball. But what really causes vehicle fires?
Depicting the mirror image of a flag on aircraft is done for a very specific (and very patriotic) reason.