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.
a: any of a genus (Picea) of evergreen trees of the pine family with a conical head of dense foliage, flat or 4-sided needles, pendulous cones, and soft light wood b: any of several coniferous trees (as Douglas fir) of similar habit. 2. : the wood of a spruce. See spruce defined for English-language learners.