In this video I'm building an Arduino Heart Rate Monitor that is housed in a toy handle in the style of the Star Trek Tricoder. The device uses the PulseSensor with an Arduino Pro Mini and an OLED ...

Eddy currents are not just textbook curiosities; they are the hidden loops that appear whenever metal meets a changing magnetic field. From DIY levitation tricks to clever braking systems, these ...

Light aircraft often use a heading indicator as a way to know where they’re going. Retired instrumentation engineer [Don Welch] recreated a heading indicator of his own, using cheap ...

You may or may not be reading this on a smartphone, but odds are that even if you aren’t, you own one. Well, possess one, ...

STRAITS OF FLORIDA — At 2 a.m., oceanographer Ryan Smith was headed into his 12th hour of work with little sleep when trouble started. From the rear deck of the University of Miami’s research boat, he ...

Your phone isn’t listening. The truth is scarier. Today’s episode breaks down exactly why all those ads seem magically made for you. Plus: how a hacker used Sony’s own chatbot to steal $20,000 worth ...

Lauren Graves is an educator-turned-editor specializing in personal finance content. She seeks to make complicated topics easier to understand and less intimidating to the average reader with accurate ...

NEW projects in hilly areas in Ampang Jaya, Selangor, will be required to instal Early Warning Systems (EWS) as part of their development conditions. Ampang Jaya Municipal Council (MPAJ) deputy ...