In this video, I created a blood oximeter by using the MAX30105 particle sensor to figure out the changes in color of passing blood through my finger and counting the pulse from that. The device uses ...

Fitness wearables can help you move more, sleep better, and stay healthy. Here's how to pick the right one for you, along with the best fitness trackers we've tested. I’m PCMag’s senior writer ...

There has never been a better selection of fitness trackers, but with choice comes confusion. We're here to help you narrow your options and find the best fitness tracker for your needs and budget. We ...

Abstract: Interband radiometric calibration from the mid-infrared to visible bands in the ocean specular region is an effective way to calibrate on-orbit remote sensing sensors. It assumes that the ...

Abstract: The Moon is an attractive target for radiometric calibration. The integrated signal from the lunar disk has been used to derive several empirical irradiance models, which are particularly ...