Apple, Garmin, Samsung, Google or Amazfit? I compared each one against a chest strap for heart rate accuracy and found a ...

Dive into Part III of the Feynman Lectures as we explore the fixed bead parabola accelerometer! This tutorial breaks down the physics principles, step-by-step calculations, and practical applications, ...

From finding hidden metal to adjusting lighting, these hidden gems will change how you use your phone ...

Antenna design is often referred to as a black art or witchcraft, even by those experienced in the space. To that end, [Janne] wondered—could years of honed skill be replaced by bruteforcing the ...

Objectives To investigate associations between daily physical activity, activity intensity and step counts with incident cancer risk. Methods Prospective analysis of UK Biobank participants who wore ...