Sales

src: theadsfactory.com Sales is activity related to selling or the amount of goods or services sold in a given time period. The seller o...

Central heating

src: www.magicthermodynamicbox.com A central heating system provides warmth to the whole interior of a building (or portion of a building) ...

Mpemba effect

src: i.ytimg.com The Mpemba effect , named after Erasto Batholomeo Mpemba (b.1950) in 1963, is the observation that, in some circumstances, ...

Zinc gluconate

src: ssli.ebayimg.com Zinc gluconate is the zinc salt of gluconic acid. It is an ionic compound consisting of two anions of gluconate for e...

Angular cheilitis

src: upload.wikimedia.org Angular cheilitis ( AC ), is inflammation of one or both corners of the mouth. Often the corners are red with ski...