Can see through walls: Open-source WiFi tool detects human movement behind walls without cameras

A new open-source project, WiFi DensePose, uses ordinary WiFi signals to detect human movement behind walls without cameras.
Smithsonian Magazine

These Intricately Decorated Ostrich Eggshells Suggest Our Ancestors May Have Understood Basic Geometry 60,000 Years Ago

The lines, right angles and other mysterious designs required careful planning and robust cognitive abilities, according to a new study ...