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DK Science & Technology: Mixtures

WHAT IS THE DIFFERENCE BETWEEN A MIXTURE AND A COMPOUND? DO SOLIDS, LIQUIDS, AND GASES MIX? WHY IS IT EASIER TO MIX THAN TO SEPARATE? SOLUTIONDIFFUSIONFIND OUT MOREA mixture is a jumble of…

Breaking Dawn Trivia

Word Wise > All About Books Learn about the symbolism, origin of names, and other interesting tidbits about Breaking Dawn Related Links Twilight Page…

American Medical Association

(Encyclopedia) American Medical Association (AMA), professional physicians' organization (founded 1847). Its goals are to protect the interests of American physicians, advance public health, and…

Nadelman, Elie

(Encyclopedia) Nadelman, ElieNadelman, Elieāˈlē nädˈəlmən [key], 1882–1946, Polish-American sculptor, b. Warsaw. He spent some time in Paris and is said to have influenced Picasso. Before he settled…

Interview: Edward Ball on Slaves in the Family

"It Cuts Both Ways" I'm sure that you've heard about the proof that Thomas Jefferson fathered children by his slave, Sally Hemings... Bebe Moore Campbell, the novelist, said in a commentary…

The Leaning Tower of Pisa

The Question: Why is the Leaning Tower of Pisa leaning and not falling over? The Answer: Mainly because of efforts that have been taken to save…

Bill Gates

(William Henry Gates III)software industry pioneer, philanthropistBorn: 10/28/1955Birthplace: Seattle, Wash. After years of tinkering with computers, Gates dropped out of Harvard at age 19 to form…

initiation

(Encyclopedia) initiation, the transition and attendant ceremonies, such as ordeals and rites, involved in passing from one state or status to another, often from childhood to adulthood. It was among…

hydrocephalus

(Encyclopedia) hydrocephalushydrocephalushīˌdrəsĕfˈələs [key], also known as water on the brain, developmental (congenital) or acquired condition in which there is an abnormal accumulation of body…