Beta (13) iron, an unmagnetic, intensely hard and brittle allotropic form of iron, though normal and stable only in the little triangle GHM, is yet a state through which the metal seems always to pass when the austenite of region 4 changes into the ferrite and cementite of regions 6 and 8.
According to our present theory, it is chiefly to beta iron, preserved in one of these ways, that all of our tool steel proper, i.e.
These include the austenitic or gamma non-magnetic manganese steel, already patented b y Robert Hadfield in 1883, the first important known substance which combined great malleableness with great hardness, and the martensitic or beta " high speed tool steel " of White and Taylor, which retains its hardness and cutting power even at a red heat.
Beetroot (Beta vulgaris) is used as fodder, and yields about 10 tons per acre.
His best known productions are Adams and Liberty, a once popular song written in 1798, The Invention of Letters (1795), and The Ruling Passion, the Harvard Phi Beta Kappa poem of 1797.
By the word alphabet, derived from the Greek names for the first two letters - alpha and beta - of the Greek alphabet, is meant a series of conventional symbols each indicating a single sound or combination of sounds.
He was also called Beta as being second in all branches of learning, though not actually first in any.
The sugar beet is a cultivated variety of Beta maritima (nat.
His Phi Beta Kappa oration at Harvard College in August 1837, on "The American Scholar," was an eloquent appeal for independence, sincerity, realism, in the intellectual life of America.
Among his writings are: Railroads, Their Origin and Problems (1878); Three Episodes of Massachusetts History (1892); a biography of his father, Charles Francis Adams (1900); Lee at Appomattox and Other Papers (1902); Theodore Lyman and Robert Charles Winthrop, Jr., Two Memoirs (1906); and Three Phi Beta Kappa Addresses (1907).
Beta Cicla variegata: hardy, 2 ft., beautifully coloured leaves and midribs, crimson, golden, &c.