Learn how to make a simple hand-cranked power generator from scratch using basic materials like DC motors, a wooden base, an ...

Scientists use distant gamma ray bursts to prove that light maintains its constant speed, reinforcing Einstein's theory.

How to Buy an Ultrashort-Throw Projector ...

Scientists used the April 2024 solar eclipse to show how animals adjust their behavior when daylight suddenly disappears.

This video explores whether a smartphone can realistically be charged using light as the sole power source . It tests different conditions, including direct sunlight and indoor artificial lighting, to ...

A new CRISPR-powered light sensor can detect the faintest whispers of cancer in a single drop of blood.

This easy test can help you get a gauge on your VO2 max—without a watch. Every day as I peruse through the mountain of ...

The snow has melted away and your neighbor’s lawns are beginning to show signs of life with splashes of bright green. Your lawn, on the other hand, looks like matted down straw. Is the grass dead or ...

It may be marketed as a projector, but the Jiawen Galaxy Projector Light is more of an ambient night-light than anything else. It’s great at what it does and looks very stylish, but don’t buy this ...

After years of extreme work and little sleep, a founder explains how health data revealed hidden risks and pushed him to ...

Ammonia, a key part of nitrogen fertilizers, is central to sustaining global food production. However, its manufacture is ...