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Watercolor paper — Painting on Papyrus was invented in Ancient Egypt long before the invention of Paper. Hieroglyphs: ankh, basket, Eye of Horus, Sun Disk-(Gard. N5) Synthetic pigment — The first known synthetic pigment was Egyptian blue, which is first attested on an alabaster bowl in Egypt dated to Naqada III (circa 3250 BC).
The ancient Egyptians were known to use honey as medicine, and the juices of pomegranates served as both an astringent and a delicacy. [17] In the Ebers Papyrus, there are over 800 remedies; some were topical-like ointments and wrappings, others were oral medication such as pills and mouth rinses; still others were taken through inhalation.
Ancient Egyptian technology describes devices and technologies invented or used in Ancient Egypt. The Egyptians invented and used many simple machines , such as the ramp and the lever , to aid construction processes.
A man brushing his teeth while looking in a mirror. Tooth brushing is the act of scrubbing teeth with a toothbrush equipped with toothpaste.Interdental cleaning (with floss or an interdental brush) can be useful with tooth brushing, and together these two activities are the primary means of cleaning teeth, one of the main aspects of oral hygiene. [1]
Remains from ancient China (dating 4000 years ago) have carved bamboo pegs, tapped into the bone, to replace lost teeth, and 2000-year-old remains from ancient Egypt have similarly shaped pegs made of precious metals. Some Egyptian mummies were found to have transplanted human teeth, and in other instances, teeth made of ivory.
Water softeners, which use sodium ions to replace water-hardening minerals in water, were first introduced into the water treatment market in 1903. The theory of ion exchange involves replacing undesirable or potentially harmful ions with more desirable or harmless ones. This is implemented in domestic water treatment system as water softeners.
A team of engineers suggests a new theory on how Egypt’s first pyramid was built — a water elevator used to float heavy stones through the middle of the structure.
The practice of water treatment soon became mainstream, and the virtues of the system were made starkly apparent after the investigations of the physician John Snow during the 1854 Broad Street cholera outbreak demonstrated the role of the water supply in spreading the cholera epidemic. [78]