While in Puerto Rico slavery was 2 % of the population and blacks were less than 11 %, Cuba was 30 % black and slaves wee the backbone of the plantation economy.

While the scientific community was once divided between supporters of the Big Bang and those of alternative cosmological models, most scientists became convinced that some version of the Big Bang scenario best fit observations after the discovery of the cosmic microwave background radiation in 1964, and especially when its spectrum ( i. e., the amount of radiation measured at each wavelength ) was found to match that of thermal radiation from a black body.

While the mass of a black hole can take any positive value, the charge and angular momentum are constrained by the mass.

While short strings have zero entropy, he could identify long highly excited string states with ordinary black holes.

While white, and more recently black, saltwater pearls are by far the most popular, other color tints can be found on pearls from the oceans.

While the nature of these objects was controversial until as recently as the early 1980s, there is now a scientific consensus that a quasar is a compact region in the center of a massive galaxy surrounding its central supermassive black hole.

While living, his writings and activism attempted to empower black people, and he was famous for his slogan " black is beautiful ", which he described as meaning: " man, you are okay as you are, begin to look upon yourself as a human being ".

While George Romero denies he hired Duane Jones simply because he was black, reviewer Mark Deming notes that " the grim fate of Duane Jones, the sole heroic figure and only African-American, had added resonance with the assassinations of Martin Luther King, Jr. and Malcolm X fresh in the minds of most Americans ".

While seeming absurd at first glance, considering that grass is neither white nor black, it is supposed to be effective against the zebra's main predator, the lion, which is color blind.

" While his opponents called his powerful network of supporters the " Tuskegee Machine ," Washington maintained control because of his ability to gain support of numerous groups including influential whites and the black business, educational and religious communities nationwide.

While this is intuitively false and is also false according to Carnap's theory of induction, observing non-ravens ( according to that same theory ) causes us to reduce our estimate of the total number of ravens, and thereby reduces the estimated number of possible counterexamples to the rule that all ravens are black.

While wild cats, dogs, feral pigs, black rats, Polynesian rats and mice are present, the island has no known populations of possums, mustelids ( weasels, stoats or ferrets ), hedgehogs, brown rats or deer, thus being a relative haven for native bird and plant populations.

While interest in Black Boy ebbed during the 1950s, a resurgence of interest in critics, Black Boy remains a vital work of historical, sociological, and literary significance whose seminal portrayal of one black man's search for self-actualization in a racist society made possible the works of such successive writers as James Baldwin and Ralph Ellison.

While commander of Fort Davis, he started a controversial court-martial of second lieutenant Henry Flipper, the first black cadet to graduate from West Point.

While on antibiotics for this problem in October 1974, Crawford's drinking caused her to black out, slip and strike her face.

While the image of a ninja clad in black garb ( shinobi shōzoku ) is prevalent in popular media, there is no written evidence for such a costume.

While no deed of emancipation has been found for Aron Dupuy, in 1860 he and Charlotte were living together as free black residents in Fayette County, Kentucky.

While individual trees generally have a lifespan between 100 and 200 years, California black oak can live up to 500 years of age.

While in a non-rotating black hole the singularity occurs at a single point in the model coordinates, called a " point singularity ".

While this specie's relative, the Brown ( Norway ) Rat prefers to nest near the ground of a building the black rat will prefer the upper floors and roof.

While the formal economy sank, the black market economy in Guyana thrived.

While Einstein's theory of general relativity shows that light waves can be bent near the surface of an extremely massive object, such as the sun or a black hole, current technology cannot manipulate the astronomical amounts of matter needed to do this.

While they taught her to treat blacks and members of other racial groups as equals, they cannot accept their daughter's actions for they did not expect her to introduce to them a black man as their future son-in-law.

While bands such as Suidakra ply their trade with the more extreme subgenres of black or death metal, other groups like Mägo de Oz prefer a more traditional or power metal sound.

While white is the coolest summer shade, there are lots of pastel hues along with tintable fabrics that will blend with any wardrobe color.

While often cited as an Indian legend, the white doe seems to have its roots in English folklore.

While no gross abnormalities were found during postmortem examination, histopathological damage to the white matter of spinal cord and brain was seen.

Hendrix borrowed a Fender Telecaster from Noel Redding to record " Hey Joe " and " Purple Haze ", used a white Gibson SG Custom for his performances on The Dick Cavett Show in the summer of 1969, and the Isle of Wight film shows him playing his second Gibson Flying V. While Jimi had previously owned a Flying V that he had painted with a psychedelic design, the Flying V used at the Isle of Wight was a unique custom left-handed guitar with gold plated hardware, a bound fingerboard and " split-diamond " fret markers that were not found on other 1960s-era Flying Vs.

While some Bible scholars suggest the size and habits of the great white shark correspond better to the representations given of Jonah's being swallowed, normally an adult human is too large to be swallowed whole.

While criticized as backward by British officials and white settlers, African farming proved resilient, and Kikuyu farmers engaged in widespread resistance to the colonial state's agrarian reforms.

While salmon are usually hunted by an individual or a small group of individuals, herring are often caught using carousel feeding ; the killer whales force the herring into a tight ball by releasing bursts of bubbles or flashing their white undersides.

While displays lit with white LEDs usually have a poorer color gamut than CCFL lit displays, panels lit with RGB LEDs have very wide color gamuts.

While she is playing outside one day, Mei sees two white, rabbit-like ears in the grass.

While hydrogen fusion can occur in a stable manner on the surface of the white dwarf for a narrow range of accretion rates, for most binary system parameters the hydrogen burning is thermally unstable and rapidly converts a large amount of the hydrogen into other heavier elements in a runaway reaction, liberating an enormous amount of energy, blowing the remaining gases away from the white dwarf's surface and producing an extremely bright outburst of light.

While most clusters become dispersed before a large proportion of their members have reached the white dwarf stage, the number of white dwarfs in open clusters is still generally much lower than would be expected, given the age of the cluster and the expected initial mass distribution of the stars.

While the U. S. Supreme Court majority in 1896 Plessy explicitly upheld only " separate but equal " facilities ( specifically, transportation facilities ), Justice John Marshall Harlan in his dissent protested that the decision was an expression of white supremacy ; he predicted that segregation would " stimulate aggressions … upon the admitted rights of colored citizens ," " arouse race hate " and " perpetuate a feeling of distrust between races.

While it originally focused on damages done by the Ku Klux Klan and other white supremacist groups, throughout the years the SPLC has become involved in other civil rights causes, among them, cases concerned with institutional racial segregation and discrimination, the mistreatment of aliens, and the separation of church and state.

While pronking, the Springbok repeatedly leaps into the air in a particular stiff-legged posture, with its back bowed and the white fan lifted.

While the British colonialists considered his regime to be a future threat, allegations that white traders wished his death are problematic given that Shaka had granted concessions to whites prior to his death, including the right to settle at Port Natal ( now Durban ).

While it is a popular belief that it is illegal to pick the common Trillium grandiflorum ( white trillium ) in Ontario, in reality they are only protected in provincial parks and land owned by conservation authorities.

While fewer than 1 % of British men could vote, a majority of white American men were eligible.

While cotton fibers occur naturally in colors of white, brown, pink and green, fears of contaminating the genetics of white cotton have led many cotton-growing locations to ban growing of colored cotton varieties which remain a specialty product.

While gravitropic response of Arabidopsis root organs is their predominant tropic response, specimens treated with mutagens and selected for the absence of gravitropic action showed negative phototropic response to blue or white light, and positive response to red light, indicating the roots also show positive phototropism.

While the white cane is commonly accepted as a " symbol of blindness ", different countries still have different rules concerning what constitutes a " cane for the blind ".