Special right triangle is 90°, leaving the remaining angle to be 30°. Right triangles whose sides are of integer lengths, with the sides collectively known as Pythagorean triples, possess angles that cannot all be rational numbers of degrees. (This follows from Niven's theorem.) They are most useful in that they may be easily remembered and any multiple of the sides produces the same relationship. Using Euclid's formula for generating Pythagorean triples, the sides must be in the ratio where "m" and "n" are any positive integers such that . There are several Pythagorean triples which are well-known, including those with sides in the
How Many More Years of the power chord. T-Bone Burnett said of the recording: The first major breakthrough Sam [Phillips] made was with Howlin' Wolf. That's when he started bringing the bass and drums up loud. Back in those days the bass and drums were background instruments; it was all about the horns and the piano, the melody instruments, and Sam brought the rhythm section right up front, and that became rock 'n' roll. That was a big shift... In some ways "How Many More Years" by Wolf would be the first rock ’n’ roll song because that has the guitar lick that became