Category: 7. Science

Archaeologists say Neolithic Liangzhu residents shaped human skulls and other bones into everyday tools like bowls, cups, masks, and knives. The dig site dates back roughly 5,000 years and documents the first known example of routine human…

Optical atomic clocks just took a clean step forward. An MIT team reports a method that cuts quantum noise and lets a clock resolve twice as many ticks as before.

The work centers on ytterbium atoms and a new way to steady a laser, and careful…