Chicago air quality improving amid Canadian wildfire smoke, alert extended into weekend

An Air Quality Alert remains in effect for the Chicago area Friday due to smoke from Canadian wildfires. The alert is in ...
CNET

Do Microcurrent Devices Actually Work? We Asked Dermatologists

"At-home microcurrent devices can be a beneficial part of your skin care routine, but they work best for mild improvements ...

Arthur Fery's time at Stanford laid the groundwork for his run to the Wimbledon semifinals

There's also an American angle to the French-born British player who grew up five minutes from the All England Club and has ...

Rebounding AI stocks send the S&P 500 within 1% of its record

A rebound for AI stocks lifted the U.S. market. The S&P 500 rose 0.7% Monday and pulled within 1% of its record, even though ...
EurekAlert!

Generalized doppler effect for high-accuracy frequency shift measurement

Conventional optical Doppler techniques suffer from fundamental limitations: linear Doppler cannot sense transverse motion; rotational Doppler fails to distinguish clockwise from counterclockwise ...
IEEE

Long-distance multistatic aircraft tracking with VHF frequency doppler effect

Abstract: A multistatic Doppler radar concept based on long-distance VHF frequency recordings is presented and tested in a two-receiver, one-transmitter configuration. The core of the method is a ...