This is a list of free and open source software packages : computer software licensed under free software licenses and open source licenses . Software that fits the Free Software Definition may be more appropriately called free software ; the GNU project in particular objects to their works being referred to as open source . [ 1 ] For more information about the philosophical background for open source software, see free software movement and Open Source Initiative . However, nearly all software meeting the Free Software Definition also meets the Open Source Definition and vice versa. A small fraction of the software that meets either definition is listed here. [ edit ] Applied fields
Stormy Weather Take an ordinary magic square and imagine that the number in each cell denotes its altitude above some common underlying plane.
The Mpemba effect , named after Tanzanian student Erasto Mpemba , is the assertion that warmer water can sometimes freeze faster than colder water. Although there is anecdotal support for the effect, there is no agreement on exactly what the effect is and under what circumstances it occurs. There have been reports of similar phenomena since ancient times, although with insufficient detail for the claims to be replicated.
This is a revised version of AI Memo No. 616, MIT Artificial Intelligence Laboratory. An earlier published version appeared in Music, Mind, and Brain: The Neuropsychology of Music (Manfred Clynes, ed.)