A crystal radio is basically a high Q resonator tied to an antenna and an envelope detector. These days the envelope detector is a point contact diode such as a 1N34 Germanium diode. The resonant ...

When you think of expensive gemstones, what comes to mind? Most people think of the Big Four: diamonds, emeralds, rubies and ...

Ron Coleman Mining: Role Coleman in Jessieville, Arkansas, offers not just crystal mining opportunities, but a zipline experience for visitors to view crystal formations below them. The center ...

Crystal Raypole’s work appears on Healthline, and she’s previously worked as a writer and editor for GoodTherapy. Her interests include Japanese language and translation, cooking, natural ...

Crystal skulls are not uncommon or terribly mysterious. Thousands are produced every year in Brazil, China, and Germany. But there are a handful of these rather macabre objects that have fueled ...

Billy Crystal and his wife, Janice, have been married for more than 50 years Kaitlin Stevens is a contributing writer at PEOPLE. She has been working at PEOPLE since 2022. Her work has also ...

Little Gems have a good shelf-life and can keep for up to seven days in the salad drawer of the refrigerator. Keep them in the original packet, or store them with a damp piece of kitchen towel in ...

But let’s be a bit more specific. What gives gemstones colors, or rather, what changes the way they absorb and reflect light ...

More than 4,000 naturally occurring minerals—inorganic solids that have a characteristic chemical composition and specific crystal structure—have been found on Earth. They are formed of simple ...

Crystal Palace can draw an established link back to the Crystal Palace football team established in 1861, which played its first match in March 1862. The connection makes Palace the oldest league club ...