Create a simple soft pastel drawing of a single water drop that looks smooth, shiny, and surprisingly realistic. This calming art tutorial breaks the process into easy steps so anyone can follow, even ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Tim Heffernan Tim Heffernan is a writer who covers air and water quality and ...

You probably have a few water bottles stashed for an emergency, but if you rely on sensitive medical gear such as a CPAP machine, that isn't going to work. In a disaster scenario, finding a gallon of ...

Scroll or swipe down to find out how to make a feast for the birds in your garden. There are three different bird feeders you can make with your grown-up. Take a look below, you might want to make all ...

Abstract: In this article, a novel approach is proposed to address sensors’ significant challenges by introducing a portable planar microstrip sensor based on a dual-bandpass filter (BPF). This sensor ...

Abstract: Based on the theoretical foundation of microwave time-domain transmission, a novel sensor for detecting water content in crude oil is designed. The principles of measuring the water content ...