The lens focuses images and can be affected by cataracts and aging The lens is a curved structure in the eye that sits behind ...

the cornea or the lens internally the crystal lens. You know some aberration within that lens is typically what's causing the halo. The number one reason we see halos is patients have corrective ...

The lens features a bilayer structure made of liquid crystal materials. Each layer responds differently to the applied electric field, splitting incoming light into oppositely polarized beams. Bifocal ...

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 ...

Nasha is a Managing Editor for CNET, overseeing our sleep and wellness verticals. She is a nutrition, mental health, fitness and sleep science enthusiast. Her passion for mindful and holistic ...

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 ...

Both monocrystalline (mono) and polycrystalline (poly) panels use crystalline silicon cells. However, the way these cells are manufactured differ for each type of panel. The “mono” in ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The best iPhone lenses can quickly boost the quality of your smartphone photos and videos.

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 ...

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 ...