Cube (algebra) however, easy to show that most numbers are not perfect cubes because "all" perfect cubes must have digital root 1, 8 or 9. That is their values modulo 9 may be only −1, 1 and 0. Moreover, the digital root of any number's cube can be determined by the remainder the number gives when divided by 3: Every positive integer can be written as the sum of nine (or fewer) positive cubes. This upper limit of nine cubes cannot be reduced because, for example, 23 cannot be written as the sum of fewer than nine positive cubes: The equation has
Black cube art museum allow the artist total control of what we objectively experience. Able to house any form of mainstream artwork, it seems unlikely that modern black cube museums can be entirely made redundant by the Internet. Black cube art museum A black cube (or black box) art museum is a term used by some scholars referring to the type of art museum that is architecturally designed or renovated with special consideration for the particular needs of modern digital art, installation art, and video art. The development of the black box art museums originated from a need to accommodate these works in a