Long, short, thick, curly, wavy, kinky, it really doesn't matter what your hair is like—I know you have a comb. Bald but rocking a beard? Still have a comb. Just about every man owns one. And here's ...

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Jade rollers are popular self-care tools for facial sculpting, but can this stone also benefit the scalp? Some use jade combing to enhance circulation, hair growth, and relaxation, but quality ...

Mathematics provides tools for explanation and analysis in the physical, engineering, business and social sciences. These tools can help in areas as diverse as planning and evaluating market research, ...

This will sound gross, but I’ve never deep cleaned my hairbrushes and combs. Sure, I’ve cleaned out the trapped hair that gets on the brush after I use it, but I’ve never done anything more than that.

Frequency combs are light sources with a spectrum that comprises a series of sharp, equally spaced lines. The frequencies of these lines are known to a very high degree of accuracy, which makes ...

Abstract: Optical frequency comb (OFC) emission in quantum cascade lasers (QCLs) is highly attractive for applications in metrology and sensing. Recently, coherent OFC mode-locking with large ...

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Abstract: We present a dual-comb spectrometer based on gain-switched optical frequency combs which breaks the current spectral resolution limitation of such systems. The external phase modulation of ...