Dual-comb spectroscopy performed in the mid-infrared—where molecules have their strongest rotovibrational absorption lines—offers the promise of high spectral resolution broadband spectroscopy with ...

Q. I have a silver comb, brush and mirror set. The tortoiseshell teeth have fallen out of the comb. (I’m not sure if they’re real tortoiseshell or plastic.) Also, the silver needs polishing. Whom can ...

Optical frequency comb sources provide thousands of precise and accurate optical lines in a single device enabling the broadband and high-speed detection required in many applications. A main ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? “We experimentally demonstrate transmission of 1.84 Pbit s –1 over a 37-core, ...

If you’re looking for a simple tool to help keep your beard groomed, you have two main options: a beard brush, or a beard comb. According to the experts we talked to, combs are better for longer ...