Nothing whatsoever to do with the Athletics Union, this stands for Astronomical Units, and is a standard unit of length within the Solar System One AU is defined as the mean distance between the Earth and the Sun, and is equivalent to about 150 million km So Mercury is 0 4AU from the Sun, Mars is 1 5AU, and Pluto around 38AU It gets a bit silly to try to measure interstellar distances with this yardstick, the nearest star being about 250,000AU away, but it is very useful in the case of the planets
Short for audio, a common format for sound files on UNIX machines It is also the standard audio file format for the Java programming language On PCs, two other popular sound formats are WAV and MIDI
a soft yellow malleable ductile (trivalent and univalent) metallic element; occurs mainly as nuggets in rocks and alluvial deposits; does not react with most chemicals but is attacked by chlorine and aqua regia
AU is short for Astronomical Unit and defined as: the radius of an unperturbed circular orbit around the Sun of a massless body having an orbital period of 2*(pi)/k days (k is the Gaussian gravitational constant) One AU is slightly less than the average distance between the Earth and the Sun (approximately 1 5x10^11 m) See the table of astrodynamic constants for precise values [1]
An audio format that originated on UNIX systems but has since been ported to virtually every other platform out there from the Newton on up Note though that these files can be either stereo or mono; stereo is not supported on as many machines as mono
a unit of length used for distances within the solar system; equal to the mean distance between the Earth and the Sun (approximately 93 million miles or 150 million kilometers)
The true primary vowel sound of U, in Anglo-Saxon, was the sound which it still retains in most of the languages of Europe, that of long oo, as in tool, and short oo, as in wood, answering to the French ou in tour
the twenty-first letter of the English alphabet, is a cursive form of the letter V, with which it was formerly used interchangeably, both letters being then used both as vowels and consonants