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Movements, leaders, victories and the continuing fight for equality.
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Movements, leaders, victories and the continuing fight for equality.
Innovation, patents, science, technology and world-changing contributions.
Pioneers, champions, Negro Leagues, records, activism and excellence.
Meet the people whose lives, choices and achievements shaped the journey.
Black towns, communities, institutions and places where history happened.
Moments that changed communities, movements, institutions and the nation.
In August 1908, a white mob attacked Springfield, Illinois’s Black community, destroying homes and businesses and lynching two Black men. National outrage over the violence helped spur the movement that created the NAACP the following year.
MORE →Reflects the personal views, recollections, and perspective of the author, Mike Davis.
This is a personal recollection on the Move fire on May 13, 1985
| Base 10 | |
|---|---|
 | |
| Developer | Skip Ltd. |
| Publisher | Nintendo |
| Series | Art Style |
| Platform | Nintendo DSi |
| Release | |
| Genre | Puzzle |
| Modes | Single-player, Multiplayer |
Base 10, known as Code in PAL territories and Decode in Japan, is a puzzle video game developed by Skip Ltd. and published by Nintendo for the Nintendo DSi's DSiWare digital distribution service.
The game involves players lining up numbers so that they total up to 10. However, as the numbers resemble those from an LCD, players can flip around numbers (for example, a 2 can be reversed to become a 5) to complete their objective.
The options featured include a sprint game involving 2 to 10 different digits, a puzzle mode and an endless mode.
There is even a multiplayer option where two players can go head to head with the other player acquiring Base 10 through DS Download on any Nintendo DS console.
Base 10 was announced for the DSiWare service on October 2, 2008 at a Nintendo conference alongside the reveal of the service as Decode.[citation needed][2] It was tentatively titled Code 10.[3] It was eventually released on December 24, 2008 on the DSiWare's launch.[4] It was developed by Skip Ltd. and published by Nintendo.[5]
| Aggregator | Score |
|---|---|
| Metacritic | 77/100[6] |
| Publication | Score |
|---|---|
| Eurogamer | 7/10[8] |
| IGN | 8/10[7] |
Base 10 received a 77/100 on Metacritic based on 9 reviews, indicating "generally favorable" reviews.[6] Kotaku felt it looked intriguing, saying it might be their first DSiWare purchase when it releases.[9] PC World called Code the "bar none best math game ever."[10] IGN was initially skeptical, but became addicted to its gameplay.[11] Following the Japanese release, IGN suggested players should purchase Base 10 and fellow Art Style game Aquia over other early DSiWare releases.[12] Pocket Gamer called it polished, hoping that future DSiWare games would be as good as this. They praised how the audio is performed in the game, comparing it to the puzzle game Lumines.[13] They included it in their list of the best Nintendo DS games of 2009, stating that it was a standout of the Art Style series.[14] However the game has been criticized for its lack of a left-handed option by Kotaku and GameZone.[15][16] Nintendo World Report enjoyed the game, but noted that it is only good for right-handed players.[17]
Nintendo released its first batch of DSiWare titles in Japan on Christmas Eve […] puzzle games […] include Art Style Aquario and Art Style Decode.
Source: Wikipedia. Article content is retrieved live through the MediaWiki API.
Base 10, known as Code in PAL territories and Decode in Japan, is a puzzle video game developed by Skip Ltd. and published by Nintendo for the Nintendo DSi's DSiWare digital distribution service.
A negative base (or negative radix) may be used to construct a non-standard positional numeral system. Like other place-value systems, each position holds multiples of the appropriate power of the system's base; but that base is negative—that is to say, the base b is equal to −r for some natural number r (r ≥ 2). Negative-base systems can accommodate all the same numbers as standard place-value systems, but both positive and negative numbers are represented without the use of a minus sign (or, in computer representation, a sign bit); this advantage is countered by an increased complexity of arithmetic operations. The need to store the information normally contained by a negative sign often results in a negative-base number being one digit longer than its positive-base equivalent. The common names for negative-base positional numeral systems are formed by prefixing nega- to the name of the corresponding positive-base system; for example, negadecimal (base −10) corresponds to decimal (base 10), negabinary (base −2) to binary (base 2), negaternary (base −3) to ternary (base 3), and negaquaternary (base −4) to quaternary (base 4).
In mathematics, the logarithm of a number is the exponent by which another fixed value, the base, must be raised to produce that number. For example, the logarithm of 1000 to base 10 is 3, because 1000 is 10 to the 3rd power: 1000 = 103 = 10 × 10 × 10. More generally, if x = by, then y is the logarithm of x to base b, written logb x = y, so log10 1000 = 3. As a single-variable function, the logarithm to base b is the inverse of exponentiation with base b. The logarithm base 10 is called the decimal or common logarithm and is commonly used in science and engineering. The natural logarithm has the number e ≈ 2.718 as its base; its use is widespread in mathematics and physics because of its very simple derivative. The binary logarithm uses base 2 and is widely used in computer science, information theory, music theory, and photography. When the base is unambiguous from the context or irrelevant it is often omitted, and the logarithm is written log x. Logarithms were introduced by John Napier in 1614 as a means of simplifying calculations. They were rapidly adopted by navigators, scientists, engineers, surveyors, and others to perform high-accuracy computations more easily. Using logarithm tables, tedious multi-digit multiplication steps can be replaced by table look-ups and simpler addition. This is possible because the logarithm of a product is the sum of the logarithms of the factors: log b ( x y ) = log b x + log b y , {\displaystyle \log _{b}(xy)=\log _{b}x+\log _{b}y,} provided that b, x and y are all positive and b ≠ 1. The slide rule, also based on logarithms, allows quick calculations without tables, but at lower precision. The present-day notion of logarithms comes from Leonhard Euler, who connected them to the exponential function in the 18th century, and who also introduced the letter e as the base of natural logarithms. Logarithmic scales reduce wide-ranging quantities to smaller scopes. For example, the decibel (dB) is a unit used to express ratio as logarithms, mostly for signal power and amplitude (of which sound pressure is a common example). In chemistry, pH is a logarithmic measure for the acidity of an aqueous solution. Logarithms are commonplace in scientific formulae, and in measurements of the complexity of algorithms and of geometric objects called fractals. They help to describe frequency ratios of musical intervals, appear in formulas counting prime numbers or approximating factorials, inform some models in psychophysics, and can aid in forensic accounting. The concept of logarithm as the inverse of exponentiation extends to other mathematical structures as well. However, in general settings, the logarithm tends to be a multi-valued function. For example, the complex logarithm is the multi-valued inverse of the complex exponential function. Similarly, the discrete logarithm is the multi-valued inverse of the exponential function in finite groups; it has uses in public-key cryptography.
A logarithmic scale (or log scale) is a method used to display numerical data that spans a broad range of values, especially when there are significant differences among the magnitudes of the numbers involved. Unlike a linear scale where each unit of distance corresponds to the same increment, on a logarithmic scale each unit of length is a multiple of some base value raised to a power, and corresponds to the multiplication of the previous value in the scale by the base value. In common use, logarithmic scales are in base 10 (unless otherwise specified). A logarithmic scale is nonlinear, and as such numbers with equal distance between them such as 1, 2, 3, 4, 5 are not equally spaced. Equally spaced values on a logarithmic scale have exponents that increment uniformly. Examples of equally spaced values are 10, 100, 1000, 10000, and 100000 (i.e., 101, 102, 103, 104, 105) and 2, 4, 8, 16, and 32 (i.e., 21, 22, 23, 24, 25). Exponential growth curves are often depicted on a logarithmic scale graph.
Before the 1921 destruction of Tulsa’s Greenwood District, Black residents had created a remarkable center of business and community life. The district included stores, professional offices, entertainment venues and homes owned by Black citizens. Understanding Greenwood means learning what was built—not only what was burned.
MORE →Brown v. Board of Education in 1954.