What’s the fastest path between two points under gravity? ⏱️ This video solves the brachistochrone problem using just seven key tricks, breaking down the physics intuition and core ideas that reveal ...

Faculty of Science, Hainan Tropical Ocean University, Sanya, China. The conventional approaches to solving typical problems in college physics, such as the catenary (an extremum problem) and molecular ...

Bluetooth is a technology for short-range data transmission that has become so ubiquitous in recent years that we can no longer imagine life without it. This makes it all the more annoying when ...

The best way to fix Americans’ cost-of-living problem is to give workers bigger raises, Federal Reserve Chair Jerome Powell said last week. The problem: That solution looks broken, too. The US job ...

President Donald Trump has a fresh chance this week to act on a priority voters continually say they want fixed — but over which he’s in denial. The high and rising prices of health care, groceries ...

Is anti-Semitism in American political discourse actually just a carefully cultivated deception? Over the weekend, Elon Musk’s X revealed the location of every account on the site, and the results ...

This tracks might remind you The Brachistochrone problem. It asks the question "what is the shape of the curve down which a bead sliding from rest and accelerated by gravity will slip, without ...

The tour will include two-night-stands at stadiums in all but one of the 11 cities on the itinerary, for a total 21 shows. Morgan Wallen, riding high off the success of “I’m the Problem,” the ...

You probably don’t need more time. By Jancee Dunn When I look back on all the major decisions I’ve dithered over, I could scream. It took me a decade to commit to becoming a parent. I wavered for a ...

In the third century BCE, Apollonius of Perga asked how many circles one could draw that would touch three given circles at exactly one point each. It would take 1,800 years to prove the answer: eight ...

VENEGONO, Italy—One of Pope Leo XIV’s biggest quandaries is a question God himself asked: Whom shall I send? As in the book of Isaiah, few are answering “Here I am.” The Catholic Church has a manpower ...