“How are matter and energy distributed?” asked Peter Schweitzer, a theoretical physicist at the University of Connecticut. “We don’t know.” Schweitzer has spent most of his career thinking about the …
Today, against the backdrop of Filipino reservists being deployed in northern Philippine islands less than 200km from Taiwan, and the United States military’s involvement in developing a port in that …
But the solar system contains more than two masses. In fact, it started as a big cloud of dust without any planets and without the sun, and every speck of …
It’s been crazy cold this week, even down where I live in Louisiana, thanks to an outbreak of a polar vortex. This frigid air is bad for all kinds of …
Not only do I get the “shape” of the acceleration curve for the colliding cart, but I also get a maximum acceleration of –6.67 meters per second squared. With that …
There’s some cool stuff going on here. Notice that for the objects with air resistance, they all reach incredibly high velocities as they fall in the upper atmosphere where they …
This also works the other way: Incoming electromagnetic waves will get canceled by the moving charges in the Faraday cage. Your phone won’t know that it’s getting a text message …
Next, I need the mass. Each car has an empty mass of 26,000 kilograms and a capacity of 34 seats, or 123 total passengers. From the clip, the train looks …
The original version of this story appeared in Quanta Magazine. A new measurement of the strong nuclear force, which binds protons and neutrons together, confirms previous hints of an uncomfortable …
Physics questions are the most fun when people don’t immediately agree on the answer. What feels intuitive or obvious—sometimes isn’t. We can argue over the solution for hours of entertainment, …