Upon her return to the United States, Handler reworked the design of the doll (with help from engineer Jack Ryan) and the doll was given a new name, Barbie, after Handler's daughter Barbara. The doll made its debut at the American International Toy Fair in New York on March 9, 1959.pon her return to the United States, Handler reworked the design of the doll (with help from engineer Jack Ryan) and the doll was given a new name, Barbie, after Handler's daughter Barbara. The doll made its debut at the American International Toy Fair in New York on March 9, 1959.
The mineral pyrite, or iron pyrite, is an iron sulfide with the formula FeS2. This mineral's metallic luster and pale-to-normal, brass-yellow hue have earned it the nickname fool's gold because of its resemblance to gold.
Iron pyrite is too hard for a knife blade to affect, but pure gold is soft and will show a scratch. Hit the specimen with a hammer. If you strike a piece of pyrite against hard metal or flint, you will get a spark. This well-known quality gives the mineral its name -- pyrite is Greek for of fire. Real gold will produce no sparks and should flatten under the hammerâs force.