Don't go out wandering aimlessly looking for treasure. A little research can make your metal detecting hobby much more rewarding. By Eric Alt Published Apr 11, 2026 1:28 PM EDT Add Popular Science ...

Losing your sense of smell might signal Alzheimer’s far earlier than expected. Scientists found that immune cells in the brain actively destroy smell-related nerve fibers after detecting abnormal ...

City Detect, a company that uses vision AI to help local governments monitor the health of buildings and neighborhoods, announced on Friday a $13 million Series A round led by Prudence Venture Capital ...

One of the chief problems with “luxury surveillance” devices, like smart glasses with baked-in video recording cameras, is that they often look indistinguishable from regular eyewear, meaning you ...

Artificial intelligence detectors are increasingly used to check the veracity of content online. We ran more than 1,000 tests and found several strengths and plenty of weaknesses. By Stuart A.

If you’re feeling worn out or have suddenly lost some weight, your doctor might send you for a blood test. Blood tests are a common way health-care professionals detect, diagnose, and monitor a range ...

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In late 2005, five months after a car accident, a 23-year-old woman lay unresponsive in a hospital bed. She had a severe brain injury and showed no sign of awareness. But when researchers scanning her ...

There's a good chance the same Wi-Fi router beaming Netflix to your living room is also capable of something far more surprising, like detecting your movement. When you walk around the kitchen, change ...

More than a century ago, a German neuroanatomist noticed his patient acting inordinately confused. After she died, Alois Alzheimer examined her brain and discovered amyloid-beta plaques and ...

A new breathalyzer-like system could one day detect illnesses by spotting biological markers in the air we exhale, researchers report. The hope is that this could simplify medical diagnoses by making ...