This $100 device says it can improve sleep and focus using Earth's natural hum

The Schumann V1 Classic claims to mimic Earth's 7.83Hz frequency to improve sleep and focus, though research remains ...
EDN

Creating a very fast edge rate generator for testing (or taking the pulse of your scope)

I recently purchased a new oscilloscope for home use. It’s a 250 MHz scope, but I was curious what the actual -3dB frequency was as most scopes have a bit more upper end margin than their published ...
AOL

Think Twice About Plugging These Things Into A Generator

Close up of yellow portable generator - Yaroslav Litun/Getty Images When the power goes out, remembering that you have a generator on hand will give you a sigh of relief. Whether you have a portable ...