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Cloning 101

Take a look back at the science of cloning, for both therapeutic and reproductive use Dolly the SheepAP…

Savage, Edward

(Encyclopedia) Savage, Edward, 1761–1817, American portrait painter and engraver. He was probably self-taught, although he may have studied with Benjamin West during a brief visit to London. He at…

telephone

(Encyclopedia) CE5 Hand telephone telephone, device for communicating sound, especially speech, usually by means of wires in an electric circuit. The telephones now in general use evolved from…

Adam's rib

The Question: Do men and women have the same number of ribs? The Answer: Yes. Men and women both have twelve pairs of ribs, for a total of…

DK Science: Defence

MIMIC BUTTERFLYCAMOUFLAGETREE SKINK TRICKPREDATORSFIND OUT MOREAnimals have evolved many ways of protecting themselves from PREDATORS. Most use their keen senses to detect an attack and…

Weather: What Would I Do?

What Would I Do? Weather Making a Career Out of It What Would I Do? How Much Will I Earn? How Do I Become a Meteorologist? Will I Find a Job? Almost every single aspect of our lives is…

prostaglandin

(Encyclopedia) prostaglandinprostaglandinprŏsˌtəglănˈdən [key], any of a group of about a dozen compounds synthesized from fatty acids in mammals as well as in lower animals. Prostaglandins are…

Chemistry: Separating Mixtures

Separating MixturesChemistryElements, Compounds, and MixturesPure SubstancesShake It Up: MixturesColloids: Somewhere in BetweenSeparating Mixtures One of the most important things that chemists do…

Energy and the Earth

Energy is the power that we use for transportation, for heat and light in our homes and other places, and for the manufacture of all kinds of products. It has many other uses, too. The development…