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.
Hardwood. On a hardness scale, birch lumber ranks at the top with hard-rock maple, and in fact is often mistaken for maple.Birch is reserved for butcher blocks, some tool handles and specialty furniture.he hardness of birch lends itself well to the manufacture of large, flat sheets of unbroken birch veneer that make excellent and affordable plywood. When the veneer is laminated to plywood, it creates a material that has the creamy, brown and white swirls that give birch plywood its character.