Who is the suspect in Nancy Guthrie's disappearance? What to know. In South Texas, the GOP immigration hard line is now political kryptonite Viral AI video of Tom Cruise fighting Brad Pitt leaves ...

The Hairy Ball theorem, proved by Henri Poincaré in 1885, demonstrates that it's impossible to create a perfectly smooth hair pattern on a spherical surface. The theorem states that any continuous ...

Bayes' theorem is a statistical formula used to calculate conditional probability. Learn how it works, how to calculate it ...

The Environmental Protection Agency has stopped estimating the dollar value of lives saved in the cost-benefit analyses for new pollution rules. Los Angeles smog in 1979. For decades, government ...

After a year of sticker shock at the drive-thru, McDonald’s appears to be regaining favor with American consumers. By abandoning higher-priced menu experiments and returning to its "old-school" $5 ...

A study exploring the mechanisms behind why cognitive performance improves in response to exercise, has found that dopamine plays a key role. A study exploring the mechanisms behind why cognitive ...

Discover how clean float exchange rates work, their benefits, and limits. Learn how supply and demand shape currency value without government interference.

The WSJ/College Pulse Best Value ranking lists schools in order of how quickly the difference between their graduates’ salaries and those of comparable high-school graduates pays back the average net ...

Mystery solved! Here's what TL;DR means and why you keep seeing it online. It can be hard to stay current with the latest slang. Language (and internet culture) continues to evolve, resulting in an ...