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How Does a Motion Detector Work?

First developed for World War II, motion detectors have come a long way from the radar that pilots used way back then.
A Carver High School student faces charges after a butcher knife was found during a search, raising concerns about the effectiveness of school security measures.
The man critically injured in the March 2 shooting at Aurora Sinai Medical Center has died, the Milwaukee County Medical Examiner's Office said.
The chamber approved bills including a ban on cell phones for high schoolers, a requirement to install weapons detectors at ...
We came out to metal detect an old homestead site… and immediately got distracted by wildlife. A “little baby box turtle” pops up, dug into a tiny hole and “chilling out” like it owns the place.
Artificial intelligence detectors are increasingly used to check the veracity of content online. We ran more than 1,000 tests ...
While radar detectors do work when used properly, they should not be relied on as a sole piece of equipment to prevent speeding tickets. Rather, one’s eyes are the number one tool for getting caught.
I visited Rikers jail kitchen, where knives are chained, and cooks work alongside detainees to feed nearly 7,000 detainees 7 million meals a year.
District 1 Democrats running for WS/FCS Board of Education on how they’d increase school safety and improve student discipline if elected by Winston-Salem voters.
Their makers claim they can detect dozens of cancer types — but some scientists say they could be missing many cancers or delivering the wrong diagnosis.
Palm Beach County schools use AI to monitor students online hoping to deter cyber bullying, prevent suicides, alert to ...
Alabama authorities are investigating a murder-suicide that unfolded inside a medical center and involved a married couple ...