News
- Physics
Groovy ’70s sound keeps X rays tight
Cast aside as a way to reproduce music, LP phonograph records reveal another, unsuspected talent that scientists plan to exploit-focusing X rays.
- Math
Whirling to a chaotic finale
A black hole paired with another body can succumb to chaos when they orbit each other, making it more difficult to detect gravitational waves produced by such objects.
- Math
Traffic woes of the single driver
At moderate traffic volumes, a single car moving at randomly fluctuating speeds can cause traffic jams in its wake.
- Math
Spinning to a rolling stop
Air viscosity makes the rolling speed of a spinning, tipping coin go up as its energy goes down until the coin suddenly stops.
