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Diamond is extremely strong owing to its crystal structure, known as diamond cubic, in which each carbon atom has four neighbors covalently bonded to it. Bulk cubic boron nitride (c-BN) is nearly as hard as diamond. Diamond reacts with some materials, such as steel, and c-BN wears less when cutting or abrading such material. [4]
The function obtained in this way is, remarkably, a cusp form of weight two and level N and is also an eigenform (an eigenvector of all Hecke operators); this is the Hasse–Weil conjecture, which follows from the modularity theorem. Some modular forms of weight two, in turn, correspond to holomorphic differentials for an elliptic curve.
Francis sold the diamond for £29,000 (£3.98 million today), to Adolph Weil, a London jewel merchant. Weil sold the stone in 1901 [42] to the diamond dealer Simon Frankel, based in New York and/or London [17] who took it to New York. One report stated that he had paid $250,000 ($9.4 million today). [32]
In diamond, all the carbon-to-carbon bonds, both within a layer of rings and between them, are in the staggered conformation, thus causing all four cubic-diagonal directions to be equivalent; whereas in lonsdaleite the bonds between layers are in the eclipsed conformation, which defines the axis of hexagonal symmetry.
In the paradox of value, it is a contradiction that it is cheaper than diamonds, despite diamonds not having such an importance to life. The paradox of value, also known as the diamond–water paradox, is the paradox that, although water is on the whole more useful in terms of survival than diamonds, diamonds command a higher price in the market.
The race for female actor in a comedy series pitted host Kristen Bell vs. presenter Quinta Brunson vs. almost-host Jean Smart vs. two co-workers (Liza Colón-Zayas and Ayo Edebiri) from The Bear.
An Ohio doctor is being charged with arson after authorities said he set another local doctor’s house on fire, according to reports. Dr. Andrew Campbell, 33, was charged in connection to a Dec ...
Diamond [a] is a gemstone formed by cutting a raw diamond. Diamonds have high monetary value as one of the best-known and most sought-after gems, and they have been ...