How Your Smartwatch Tracks Sleep (And How Accurate It Really Is)

How accurate is your smartwatch? Learn how Apple and Samsung smartwatches use motion and HR to track sleep, and why you ...

How to build your own air quality meter with a Raspberry Pi and CO2 sensor

In winter, it’s important to ventilate living and working spaces regularly. Here’s how to make a homemade measuring station ...

Do You Need A Special Socket To Remove O2 Sensors?

Can you remove an O2 sensor with a standard wrench? Learn when you need a special socket, what's in a kit, and how thread ...
IEEE

XGB-2D CNN-Based Dissolved Oxygen Inversion for Coastal Water

Abstract: Dissolved Oxygen (DO) is an important water quality indicator, reflecting aquatic ecological health and influencing biological and biogeochemical cycles. Remote sensing of DO is exigent yet ...
National Geographic news

LED light therapy for skin is trendy—but does it work?

Dermatologists explain the science behind wildly popular treatments like red light therapy, which is now available at home—for a steep price. Full-face LED masks like this one can cost up to several ...
AZOM

ABB Launches Ultra-Accurate Water Quality Analyzer and Advanced Multi-Input Transmitter

ABB today announced the launch of two major innovations for continuous water analysis (CWA): the AeroStar ™ family of dissolved oxygen sensors and the AWT424 transmitter. Together, these innovations ...