The first solar car was invented by William G. Cobb, the inventor for General Motors, in 1955, and this was followed by the invention of the first solar car which facilitated human transportation by the International Rectifier Company in 1958.
A birch is a thin-leaved deciduous hardwood tree of the genus Betula (/ËbÉtjÊlÉ/), in the family Betulaceae, which also includes alders, hazels, and hornbeams. It is closely related to the beech-oak family Fagaceae.
BIRCH: There are many species of birch. The yellow birch is the most commercially important. European birch is fine grained, rare and expensive. Properties & Uses: Birch is a hard, heavy, close grained hardwood with a light brown or reddish colored heartwood and cream or light sapwood.EECH: The American beech is a single species which grows in the eastern half of the United States. Properties & Uses: Beech is a hard, strong, heavy wood with tiny pores and large conspicuous medullary rays, similar in appearance to maple.