Crystals can do all sorts of things, some more useful than others. They can separate the gullible from their money in New Age healing shops. But they can also serve as the light-harvesting layer in a ...

🛍️ The 52 best Walmart Black Friday deals to shop right now (updating) 🛍️ By Maddie Stone Published Sep 12, 2023 9:00 AM EDT Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, ...

Crystals vibrate at specific frequencies. This property is used in electronics. Some believe crystals can influence human energy. Science has not fully verified these claims. Placebo effects may ...

But it’s not so easy to measure whether such bodily energy exists in the first place, Jarry says. Scientists can study other forms of energy, like gravity or the energy contained in food, because we ...

In a world increasingly concerned about the environmental and geopolitical implications of fossil fuel usage, nuclear energy has resurfaced as a subject of great interest. Its ability to generate ...

As every hi-fi addict knows, the amplifier is the part of his set that makes little angular noises into big round ones. In the parlor version, it is a dazzling assembly of vacuum tubes, resistors and ...