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sandgrouse

(Encyclopedia) sandgrouse, common name for pigeon-sized, seed-eating, terrestrial birds of the genera Pteroclida (approximately 14 species) and Syrrhaptes (2 species). They are birds of the Old World…

Maria Shriver

Born: Nov. 6, 1955Birthplace: Chicago, Ill.news anchor As the daughter of Eunice Kennedy and Sargent Shriver, niece to John F., Robert, and Edward Kennedy, Maria grew up in the midst of politics…

Isaac Ingalls STEVENS, Congress, WA (1818-1862)

STEVENS, Isaac Ingalls, (cousin of Charles Abbot Stevens and Moses Tyler Stevens), a Delegate from the Territory of Washington; born in North Andover (then a part of Andover), Essex County,…

D - F

David DaleMarcus DalyThomas DanforthHerbert Joseph DavenportEdward DavyCharles Gates DawesGerard DebreuJohn DeereAmasa DelanoOscar de la RentaWarren de la RueMichael DellWilliam Edwards…

Vibrations and Sound

Introduce young kids to the physics of sound. Watch this video to learn how objects and animals make sounds with vibrations. Can you think of some other loud and soft sounds?

rabbit

(Encyclopedia) rabbit, name for herbivorous mammals of the family Leporidae, which also includes the hare and the pika. Rabbits and hares have large front teeth, short tails, and large hind legs and…

Crompton, Samuel

(Encyclopedia) Crompton, Samuel, 1753–1827, English inventor of the mule spinner, or muslin wheel, an important step in the development of fine cotton spinning. Working as a young man in a spinning…

Albany, Louisa, countess of

(Encyclopedia) Albany, Louisa, countess ofAlbany, Louisa, countess ofôlˈbənē [key], 1752–1824, wife of Charles Edward Stuart (the Young Pretender), self-styled count of Albany; daughter of a German…

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…