Diamond crystal. Solid carbon comes in different forms known as allotropes depending on the type of chemical bond. The two most common allotropes of pure carbon are diamond and graphite. In graphite the bonds are sp orbital hybrids and the atoms form in planes with each bound to three nearest neighbors 120 degrees apart. In diamond they are sp and the atoms form tetrahedra with each bound to four nearest neighbors. Tetrahedra are rigid, the bonds are strong, and of all known substances diamond has the greatest number of atoms per unit volume, which is why it is both the hardest
What Time Is Love? sound-alikes, entitled "The "What Time Is Love?" Story". "What Time Is Love?"'s European acclaim also contributed towards The KLF's change of musical direction following their abortive film project, "The White Room". As Drummond had predicted, the "Pure Trance" release received little attention from the music press. However, upon the release of "The "What Time Is Love?" Story", "Q Magazine" hailed the track as "a whirling house stomper ... not so much of a tune but a good beat". A 1990 version subtitled "Live at Trancentral" was the first of The KLF's upbeat "Stadium House Trilogy" and the single that introduced