Interesting Inventions
Detect human heartbeat through a solid wall.
From 2008. Detection of Heart Rate (heartbeat) through a Wall Using UWB Impulse Radar. Measuring the physiological functions of the human body in a noncontact manner through walls is useful for healthcare, security, and surveillance. https://www.hindawi.com/journals/jhe/2018/4832605/
Yeah, for surveillance. 🤬