Celebrate Pi Day and read all about how this number pops up across math and science on our special Pi Day page. Grab something circular, like a cup, measure the distance around the circle, and divide ...

Advances in embedded systems and sensors have enabled efficient, intelligent surveillance solutions that improve safety and ...

The sensor continuously sends out infrared light and measures how much of that light is reflected. When a reflective object is within its set detection range, it returns a low signal. The Arduino ...

While most planets that we are familiar with stick relatively close to their host star in a predictable orbit, some planets seem to have been knocked out of their orbits, floating through space free ...

Most planets spend their lives orbiting a star, but some are destined for exile. According to a study published in Science on Jan. 1, 2026, astronomers have successfully measured the mass and distance ...

We count steps, track miles, and close our rings. Athletic metrics have infiltrated everything from viral #FitTok videos to biometric-tracking devices. But when our devices remind us we haven’t hit ...

The answers to your question, respectively, are yes and no. Yes, RFID can measure distance. There is an English soccer club—I’m not permitted to say which one—that has deployed a solution for tracking ...