Black - Wikipedia
వెబ్2 రోజుల క్రితం · Black is a color that results from the absence or complete absorption of visible light. It is an achromatic color, without hue, like white and grey. It is often used symbolically or figuratively to represent darkness.
Black | Description, Etymology, & Facts | Britannica
వెబ్17, మే 2024, · Black, in physics, what is perceived with the human eye when light is absent or when all wavelengths are absorbed. Unlike the colors of the spectrum, black lacks hue, so it is considered an achromatic color. Pigments for black come from such sources as burnt vines or bones or from artificial chemical compounds.
Black hole | Definition, Formation, Types, Pictures, & Facts
వెబ్25, మే 2024, · Black hole, cosmic body of extremely intense gravity from which nothing, not even light, can escape. It can be formed by the death of a massive star wherein its core gravitationally collapses inward upon itself, compressing to a point of zero volume and infinite density called the singularity.
Black people - Wikipedia
వెబ్3 రోజుల క్రితం · Black is a racialized classification of people, usually a political and skin color-based category for specific populations with a mid- to dark brown complexion.
Black History Month | Description, History, & Facts | Britannica
వెబ్13, మే 2024, · Black History Month, monthlong commemoration of African American history and achievement that takes place each February in the United States. It was begun in 1976 as an expansion of Negro History Week, which was itself begun in 1926 by historian Carter G. Woodson.
Nasa shows what it's like inside a black hole - BBC
వెబ్10, మే 2024, · Nasa shows what it's like inside a black hole. Nasa has released footage simulating what it's like being sucked into a black hole, a region of space with such …
A Proclamation on Black Music Month, 2024 | The White House
వెబ్3 రోజుల క్రితం · 2024. During Black Music Month, we celebrate the Black artists and creatives whose work has so often been a tidal wave of change — not only by defining the American songbook and culture but also ...
What to do about mental health crisis among Black males
వెబ్24, మే 2024, · Nikki Rojas. Harvard Staff Writer. May 24, 2024 5 min read. Symposium examines thorny, multifaceted dilemma from systemic racism in policing, healthcare to stigma attached to psychotherapy in community.
A ‘Laundry List’ or a ‘Feel’: Biden and Trump’s Clashing Appeals to ...
వెబ్4 రోజుల క్రితం · Black voters are at the very foundation of the Democratic coalition, pivotal electoral building blocks in cities across the battleground states of Pennsylvania, Michigan, Wisconsin, Georgia and ...
Black hole - Wikipedia
వెబ్1 రోజు క్రితం · A black hole is a region of spacetime where gravity is so strong that nothing, including light and other electromagnetic waves, is capable of possessing enough energy to escape it. Einstein's theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole.
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