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An electric toothbrush, motorized toothbrush, or battery-powered toothbrush is a toothbrush that makes rapid automatic bristle motions, either back-and-forth oscillation or rotation -oscillation (where the brush head alternates clockwise and counterclockwise rotation), in order to clean teeth. Motions at sonic speeds or below are made by a ...
Exfoliation (cosmetology) Cross-section of all skin layers. In cosmetology, exfoliation is the removal of the surface skin cells and built-up dirt from the skin's surface. The term comes from the Latin word exfoliare ('to strip off leaves'). [1] This is a regular practice within the cosmetic industry, both for its outcome of promoting skin ...
Haidinger's brush is usually attributed to the dichroism of the xanthophyll pigment found in the macula lutea. As described by the Fresnel laws, the behavior and distribution of oblique rays in the cylindrical geometry of the foveal blue cones produce an extrinsic dichroism. The size of the brush is consistent with the size of the macula.
Itchy ears can also be caused by dry skin due to a lack of moisture or exposure to irritants like soaps, perfumes, detergents, or even hair products. Allergies to elements in these products can ...
Dr. Rao recommends adding fermented foods such as kimchi, miso and kombucha to your diet. Some studies have shown that the p robiotic benefits of these foods can help with gastrointestinal issues ...
Embattled Canada women’s soccer coach Bev Priestman apologized to her players Sunday and pledged to cooperate with an investigation into the drone-spying scandal at the Paris Olympics. The team ...
A factory reset, also known as hard reset or master reset, is a software restore of an electronic device to its original system state by erasing all data, settings, and applications that were previously stored on the device. This is often done to fix an issue with a device, but it could also be done to restore the device to its original settings.
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