Angular momentum is a fundamental quantity in physics that describes the rotational motion of objects. In quantum physics, it ...

In a study published in Physical Review Letters, scientists at GSI Helmholtzzentrum für Schwerionenforschung have discovered ...

The cause of this acceleration is not explained," Leonid Zotov, expert on Earth rotation, explained. "Ocean and atmospheric ...

You might have seen the claim online, and it’s at least partially right, but it's not the only other number of days Earth has had.

What on Earth is going on with the American consumer? U.S. workers are not sure whether to buy that new car — or brace for a recession By Quentin Fottrell Last Updated: June 4, 2025, 5:34 a.m. ET ...

In this communication, an orbital angular momentum (OAM) mode-reconfigurable antenna based on a uniform circular array (UCA) is presented. To realize multiple switchable operating states while ...