Consumer & Gadgets

At CES, beauty products pamper with AI

Salon-worthy manicures at home and expert skin care advice from artificial intelligence: the beauty industry is counting on tech to get consumers pampered like the rich and famous.

Engineering

Scientists film sound waves in a crystal

To predict how materials behave, one must first know their characteristics. Further, suppose you want to manipulate or design new materials and have them serve some technological purpose in, for example, electronic or photonic ...

Electronics & Semiconductors

Accelerating tactile communication with skin-attached telehaptics

Electronics and Telecommunications Research Institute (ETRI) has developed a telehaptic device that remotely transmits tactile sensations in real time by attaching it to the fingertip like a sticker. It is expected to add ...

Engineering

Researchers improve cement with shrimp shell nanoparticles

Putting nanoparticles from shrimp shells into cement paste made the material significantly stronger—an innovation that could lead to reduced seafood waste and lower carbon emissions from concrete production.

Engineering

Water distribution in fuel cells made visible in 4D

Teams from Helmholtz-Zentrum Berlin (HZB) and University College London (UCL) have visualized the water distribution in a fuel cell in three dimensions and in real time for the first time by evaluating neutron data from the ...

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Hair

Hair is a protein filament that grows through the epidermis from follicles deep within the dermis. The fine, soft hair found on many nonhuman mammals is typically called fur; wool is the characteristically curly hair found on sheep and goats. Found exclusively in mammals, hair is one of the defining characteristics of the mammalian class. Although other non-mammals, especially insects, show filamentous outgrowths, these are not considered "hair" in the scientific sense. So-called "hairs" (trichomes) are also found on plants. The projections on arthropods such as insects and spiders are actually insect bristles, composed of a polysaccharide called chitin. There are varieties of cats, dogs, and mice bred to have little or no visible fur. In some species, hair is absent at certain stages of life. The main component of hair fiber is keratin.

The hair can be divided into three parts length-wise, (1) the bulb, a swelling at the base which originates from the dermis, (2) the root, which is the hair lying beneath the skin surface, and (3) the shaft, which is the hair above the skin surface. In cross-section, there are also three parts, (1) the medulla, an area in the core which contains loose cells and airspaces (2) the cortex, which contains densely packed keratin and (3) the cuticle, which is a single layer of cells arranged like roof shingles.

This text uses material from Wikipedia, licensed under CC BY-SA