The existing reverence for Centrality must have been still further stimulated toward the close of the second century B.C., when the Han Emperor Wu Ti ordered the dynastic color changed to yellow -- which symbolized the Center among the traditional Five Directions -- and took 5 as the dynastic number, believing that he would thus place himself, his imperial family, and the nation under the most auspicious influences.

** 25 color palette out of 256 colors ( 16 hues * 16 luma ), different graphics modes restricted the number of usable colors and the number of colors per sprite

However the large number of copper-zinc alloys now known suggests that at least some were deliberately manufactured and many have zinc contents of more than 12 % wt which would have resulted in a distinctive golden color.

The color of a pixel is represented by a fixed number of bits.

Three colors are adequate for simpler maps, but an additional fourth color is required for some maps, such as a map in which one region is surrounded by an odd number of other regions that touch each other in a cycle.

A number of false proofs and false counterexamples have appeared since the first statement of the four color theorem in 1852.

The four color theorem has been notorious for attracting a large number of false proofs and disproofs in its long history.

The color definitions in the palette can be drawn from a color space of millions of shades ( 2 < sup > 24 </ sup > shades, 8 bits for each primary ), but the maximum number of colors a frame can use is 256.

Physical characteristics that make a colored stone valuable are color, clarity to a lesser extent ( emeralds will always have a number of inclusions ), cut, unusual optical phenomena within the stone such as color zoning, and asteria ( star effects ).

* Efforts to improve fairness by reducing first-move advantage include the rule of swap, generalizable as " swap -( x, y, z )" and characterizable as a partially compounded and partially iterated version of the pie rule (" one person slices ; the other chooses "): One player places on the board x stones of the first-moving color and a lesser number y stones of the second-moving color (" slicing " in the pie metaphor ); the other player is entitled to choose between a ) playing from the starting position, in which case the selecting player is also entitled to choose which color to play, and b ) placing z ( usually-y ) + 1 ) more stones on the board at locations of that player's choice (" reslicing " in the pie metaphor, with limitations created by the board's existing setup akin to limitations arising from the existing slices in the pie ), in which case the former player is entitled to choose which color side to play.

Each frame has its own name and a set of attributes, or slots which contain values ; for instance, the frame for house might contain a color slot, number of floors slot, etc.

By the 20th century, a number of color patterns had been established, most notably the red-and-white Kohaku.

This was particularly true of the area of the present-day state of Louisiana, which also contained a large number of free people of color.

In the nation as a whole, the number of free people of color also increased.

It is an electronically modulated optical device made up of any number of segments filled with liquid crystals and arrayed in front of a light source ( backlight ) or reflector to produce images in color or monochrome.

* Color depth or color support is sometimes expressed in bits, either as the number of bits per sub-pixel or the number of bits per pixel.

When color depth is reported as color support, it is usually stated in terms of number of colors the LCD can show.

We know that the number of radio and television impulses, sound waves, ultra-violet rays, etc., that may occupy the very same space, each solitary upon its own frequency, is infinite.

Christie has been portrayed on a number of occasions in film and television.

) As well as portraying Miss Marple on television, Hickson also narrated a number of Miss Marple stories on audio books.

* 1990 – Saddam Hussein appears on Iraqi state television with a number of Western " guests " ( actually hostages ) to try to prevent the Gulf War.

Although a number of different broadcast television systems were in use worldwide, the same principles of operation apply.

The television system for each country will specify a number of television channels within the UHF or VHF frequency ranges.

The Beverly Hillbillies ranked among the top twenty most watched programs on television for eight of its nine seasons, twice ranking as the number one series of the year, with a number of episodes that remain among the most watched television episodes of all time.

A quote from this series ranked number three in a list of the top 25 television " put downs " of the last 40 years by the Radio Times magazine.

Outside of film, Campbell has appeared in a number of television series.

When the UK Channel 4 television program " The Bermuda Triangle " ( c. 1992 ) was being produced by John Simmons of Geofilms for the Equinox series, the marine insurance market Lloyd's of London was asked if an unusually large number of ships had sunk in the Bermuda Triangle area.

The poem has been referenced in a huge number of television shows.

As the anniversary of Confederation, Dominion Day, and later Canada Day, was the date set for a number of important events, such as the first national radio network hookup by the Canadian National Railway ( 1927 ), the inauguration of the CBC's cross-country television broadcast ( 1958 ), the flooding of the Saint Lawrence Seaway ( 1958 ), the first colour television transmission in Canada ( 1966 ), the inauguration of the Order of Canada ( 1967 ), and the establishment of " O Canada " as the country's national anthem ( 1980 ).

While an exact number has not been determined, thousands of Canadians have purchased and used what they contend to be grey market radio and television services, licensed in the United States but not in Canada.

The number of radio listeners are decreasing and are being slowly outnumbered by television.

In Britain rhyming slang had a resurgence of popular interest beginning in the 1970s resulting from its use in a number of London-based television programmes such as Steptoe and Son, Mind Your Language, The Sweeney ( the title of which is itself rhyming slang —" Sweeney Todd " for " Flying Squad ", a rapid response unit of London ’ s Metropolitan Police ), Minder, Citizen Smith, Only Fools and Horses, and EastEnders.

He was also successful with a number of radio programmes, television interviews and guest appearances on Have I Got News for You, Mock the Week, QI and The Bubble.

There are a small number of other surviving cable television companies in the UK outside of NTL including WightFibre ( Isle of Wight ) and Smallworld Cable ( Ayrshire, Carlisle and Lancashire ).

Biafra went on to speak about his political beliefs on numerous television shows and he released a number of spoken-word albums.

There are a number of different ways to receive digital television.

At the time, the final episode of The Fugitive held the record for the greatest number of American homes with television sets to watch a series finale, at 72 % in August 1967.

A number of C clamps hold the pieces together on the jig until the glue sets.

Often, therefore, there are a number of rules having the same effect, and commonly other sets of rules as well, having the opposite effect.

It contains 2800 proposed cognate sets, a set of sound laws based on those proposed sets, and a number of grammatical correspondences, as well as a few important changes to the reconstruction of Proto-Altaic.

( A formal proof for all finite sets would use the principle of mathematical induction to prove " for every natural number k, every family of k nonempty sets has a choice function.

Numbers within this block are used for various test utilities such as a ringback number ( to test the ringer when installing telephone sets ), milliwatt tone ( a number simply answers with a continuous test tone ) and a loop around ( which connects a call to another inbound call to the same or another test number ).

On a more abstract level, model theoretic arguments hold that a given set of symbols in a theory can be mapped onto any number of sets of real-world objects — each set being a " model " of the theory — providing the interrelationships between the objects are the same.

* Standard two-byte encoded character set for Blissymbols, from the ISO-IR international registry of character sets, registration number 169 ( 1993-01-21 ).

Adding new character sets and character encodings enabled a number of other left-to-right scripts to be supported, but did not easily support right-to-left scripts such as Arabic or Hebrew, and mixing the two was not practical.

For example, one type of " compare " instruction considers two values and sets a number in the flags register according to which one is greater.

The limitations of such sets soon became apparent, and a number of ad hoc methods were developed to extend them.

With large sets, it becomes necessary to use more sophisticated mathematics to find the number of combinations.

Since the elements can be uniquely sequenced by atomic number, conventionally from lowest to highest ( as in a periodic table ), sets of elements are sometimes specified by such notation as " through ", " beyond ", or " from ... through ", as in " through iron ", " beyond uranium ", or " from lanthanum through lutetium ".

Two sets are said to have the same cardinality or cardinal number if there exists a bijection ( a one-to-one correspondence ) between them.

Some sets are infinite ; these sets have more than n elements for any integer n. For example, the set of natural numbers, denotable by, has infinitely many elements, and we cannot use any normal number to give its size.

Nonetheless, it turns out that infinite sets do have a well-defined notion of size ( or more properly, of cardinality, which is the technical term for the number of elements in a set ), and not all infinite sets have the same cardinality.

Although a " bijection " seems a more advanced concept than a number, the usual development of mathematics in terms of set theory defines functions before numbers, as they are based on much simpler sets.

Two sets have the same cardinal number if and only if there is a bijection between them.

A fundamental theorem due to Georg Cantor shows that it is possible for infinite sets to have different cardinalities, and in particular the set of real numbers and the set of natural numbers do not have the same cardinal number.

If κ is an infinite cardinal number, then cf ( κ ) is the least cardinal such that there is an unbounded function from it to κ ; and cf ( κ ) = the cardinality of the smallest collection of sets of strictly smaller cardinals such that their sum is κ ; more precisely