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 tree Facts. Birch is deciduous tree that belongs to the family Betulaceae. There are around 60 different species of birch that grow in temperate climate around the world. Birch requires well-drained soil, enough moisture and direct sunlight for the proper growth.