As best I can discern both the No Kings demonstrations with 5 to 7 million participants, but also the pathetic Military March and its minuscule turnout that showed Trump’s declining public support ...

Imagine a physicist observing a quantum system whose behavior is akin to a coin toss: it could come up heads or tails. They perform the quantum coin toss and see heads. Could they be certain that ...

Quantum mechanics is a probabilistic theory that does not describe individual events. Yet when we perform a single measurement, we find a well-defined outcome. This apparent contradiction, known as ...

The United States is one of just three countries that "prefers" imperial measurements over the international metric standard. The motivation why has less to do with official policy than you might ...

Down at the local pub, die-hard Brexiters will be raising a pint to news that the United Kingdom is eyeing the end of a European Union-inspired ban on selling products in only pounds and ounces. But ...

Part of our International Year of Quantum Science and Technology coverage For the International Year of Quantum Science and Technology, Physics World is shining a spotlight on quantum effects so ...

Aashish Velkar does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...