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.
The river birch is a fast-growing, water-loving, deciduous tree, native to much of the United States. Its scientific name is Betula nigra. Unlike other birches that have white barks, the river birch's bark is reddish brown and curls and peels naturally, adding visual interest to the plant.