#knowledgebit — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #knowledgebit, aggregated by home.social.
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#KnowledgeBit: The Nancy Grace Roman Space Telescope is a future NASA infrared space telescope in development and scheduled to launch in September 2026.
It is named after former NASA Chief of Astronomy Nancy Grace Roman.
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#KnowledgeBit: Sometimes mistaken for #Aurora, #STEVE ("Strong Thermal Emission Velocity Enhancement") is an atmospheric optical phenomenon that appears as a purple and green light ribbon in the sky, named in late 2016 by aurora watchers from Alberta, Canada.
The #Phenomenon is not rare, but had not been investigated and described scientifically prior to that time.
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#KnowledgeBit: "#Climateflation" is a term that describes the increasing impact of climate change on inflation.
Essentially, it refers to the rising prices of goods and services due to climate-related disruptions.
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#KnowledgeBit: #Geospace is the region of near-Earth space, extending from the upper atmosphere to the boundary where Earth's magnetic field meets solar wind, roughly 1.5 million km away.
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#KnowledgeBit: A #Leap #Second is a one-second adjustment that is occasionally applied to Coordinated Universal Time (UTC), to accommodate the difference between:
- Precise time (International Atomic Time (TAI), as measured by atomic clocks), and
- Imprecise observed solar time (UT1), which varies due to irregularities and long-term slowdown in the Earth's rotation. -
#KnowledgeBit: #Mount #Roraima is the highest of the Pakaraima chain of tepuis (table-top mountain) or plateaux in South America.
It is composed of Proterozoic age sandstone formed about 1.7 to 2 billion years ago, and hence amongst the #Oldest rocks on Earth.
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#KnowledgeBit: The #Library of #Alexandria in #Egypt was the most significant center of scholarship in the ancient world.
Founded in the 3rd century BCE under the Ptolemaic dynasty, it aimed to house "all the knowledge of the world".
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#KnowledgeBit: #Technosignatures are measurable scientific evidence of past or present technology created by extraterrestrial intelligence, acting as potential indicators of advanced alien civilizations.
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#KnowledgeBit: #ClimateChange and #Heatwaves are increasing Incidents of Wet-bulb Temperatures.
The theoretical limit to human survival for more than a few hours in the shade, even with unlimited water, is a wet-bulb temperature of 35°C (95°F) - theoretically equivalent to a heat index of 70°C (160°F), though the heat index does not go that high.
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#KnowledgeBit: #Asteroid #Bennu, a carbon-rich, near-Earth asteroid, is a fascinating object of study, known for its potential hazard to Earth and its role in understanding the early solar system and the origins of life.
https://knowledgezone.co.in/trends/browser?topic=Asteroid-Bennu
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#KnowledgeBit: #Belphegor's prime is the palindromic prime number 1000000000000066600000000000001, named after the demon Belphegor, due to its superstitious significance containing "666" (the Number of the Beast) and being surrounded by thirteen zeroes on either side.
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#KnowledgeBit: The #Grandfather #Paradox states that if one were to travel back in time and kill their grandfather before their parent's conception, they would cease to exist, thus preventing their own time travel.
It highlights the logical inconsistencies that arise from the possibility of altering the past, creating a paradox where the action both occurs and cannot occur.
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#KnowledgeBit: The #Grandfather #Paradox states that if one were to travel back in time and kill their grandfather before their parent's conception, they would cease to exist, thus preventing their own time travel.
It highlights the logical inconsistencies that arise from the possibility of altering the past, creating a paradox where the action both occurs and cannot occur.
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#KnowledgeBit: The #Grandfather #Paradox states that if one were to travel back in time and kill their grandfather before their parent's conception, they would cease to exist, thus preventing their own time travel.
It highlights the logical inconsistencies that arise from the possibility of altering the past, creating a paradox where the action both occurs and cannot occur.
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#KnowledgeBit: The #Grandfather #Paradox states that if one were to travel back in time and kill their grandfather before their parent's conception, they would cease to exist, thus preventing their own time travel.
It highlights the logical inconsistencies that arise from the possibility of altering the past, creating a paradox where the action both occurs and cannot occur.
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#KnowledgeBit: The #Grandfather #Paradox states that if one were to travel back in time and kill their grandfather before their parent's conception, they would cease to exist, thus preventing their own time travel.
It highlights the logical inconsistencies that arise from the possibility of altering the past, creating a paradox where the action both occurs and cannot occur.
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#KnowledgeBit: #Pioneer 10 (originally designated Pioneer F) is an American space probe, launched in 1972 and weighing 260 kilograms (570 pounds), that completed the first mission to the planet Jupiter.
Between July 15, 1972, and February 15, 1973, it became the first spacecraft to traverse the #AsteroidBelt.
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#KnowledgeBit: #Arctic #BlueCorridors are migration #Superhighways that allow whales, seals, walrus and other marine animals to move between locations to find the conditions they need for feeding, giving birth and mating.
It is in risk due to increased commercial activities and protecting it is very important
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#KnowledgeBit: #Orogeny, or mountain building, is the result of collision between two landmasses.
This may occur via collision of continental crust (continent-continent collision) or when oceanic and continental crust collide (ocean-continent collision).
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#KnowledgeBit: #Orogeny, or mountain building, is the result of collision between two landmasses.
This may occur via collision of continental crust (continent-continent collision) or when oceanic and continental crust collide (ocean-continent collision).
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#KnowledgeBit: #Orogeny, or mountain building, is the result of collision between two landmasses.
This may occur via collision of continental crust (continent-continent collision) or when oceanic and continental crust collide (ocean-continent collision).
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#KnowledgeBit: #Orogeny, or mountain building, is the result of collision between two landmasses.
This may occur via collision of continental crust (continent-continent collision) or when oceanic and continental crust collide (ocean-continent collision).
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#KnowledgeBit: #Orogeny, or mountain building, is the result of collision between two landmasses.
This may occur via collision of continental crust (continent-continent collision) or when oceanic and continental crust collide (ocean-continent collision).
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#KnowledgeBit: Russian chemist Dmitri #Mendeleev was the first to arrange elements in the structure we know as the periodic table. Mendeleev was a lover of card games and used a solitaire sorting strategy of columns and rows to help arrange the elements.
Periodic Table of the Elements: Origins of the Elements.
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#KnowledgeBit: The #Carrington Event was the most powerful solar storm ever recorded, occurring in September 1859.
It was named after the British astronomer Richard Carrington, who witnessed and documented the solar flare that triggered the event.
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#KnowledgeBit: #Maraya Concert Hall in AlUla, #SaudiArabia is the world's largest #Mirrored building, according to Guinness World Records. The building is covered in 9,740 mirrored panels.
The name Maraya comes from the Arabic word for "mirror" or "reflection".
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#KnowledgeBit: #Kepler-452b is an #Exoplanet sometimes quoted to be an #Earth2.0 or Earth's Cousin based on its characteristics. It is the first potentially rocky super-Earth planet discovered orbiting within the habitable zone of a star very similar to the Sun.
Of the 1,030 confirmed planets from Kepler, a dozen are less than twice the size of Earth and reside in the habitable zone of their host stars.
https://knowledgezone.co.in/resources/gk/history/5b547c0d24c1440007e6ff00
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#KnowledgeBit: A #Pulsar (from pulsating radio source) is a highly magnetized rotating #NeutronStar that emits beams of electromagnetic radiation out of its magnetic poles. Pulsars aren't really stars or at least they aren't "living" stars.
Pulsars form when a star more massive than the sun runs out of fuel in its core and collapses in on itself.
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#KnowledgeBit: #ITER,International Thermonuclear Experimental Reactor, is the world's largest #Fusion #Experiment. Thirty-five nations are collaborating to build and operate the ITER Tokamak, the most complex machine ever.
ITER Tokamak will be the largest and most powerful #Fusion device in the world.
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#KnowledgeBit: The #Penrose #Stairs are a two-dimensional optical illusion that depicts a staircase that forms a continuous loop. The stairs make four 90-degree turns as they ascend or descend.
When viewed from a specific angle, it gives the illusion that the stairs are continuously ascending or descending. However, the structure is physically impossible to exist in three-dimensional space.
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#KnowledgeBit: A #Supercluster is a large group of smaller galaxy clusters or galaxy groups; they are among the largest known structures in the universe.
The #MilkyWay is part of the Local Group galaxy group (which contains more than 54 galaxies), which in turn is part of the Virgo Supercluster, which is part of the #Laniakea Supercluster.
The number of superclusters in the observable universe is estimated to be 10 million.
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#KnowledgeBit: The #Zebrafish, a popular #Aquarium fish, is an important and widely used vertebrate #Model #Organism in scientific research, for example in drug development, in particular pre-clinical development.
It is also notable for its regenerative abilities, and has been modified by researchers to produce many #Transgenic (genetically modified organisms) strains.
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#KnowledgeBit : The #Fermi #Paradox, named after Italian-American physicist Enrico Fermi, is the apparent contradiction between the lack of evidence for extraterrestrial civilizations and various high estimates for their probability (such as some optimistic estimates for the Drake equation).
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#KnowledgeBit: A #Pulsar (from pulsating radio source) is a highly magnetized rotating #Neutron #Star that emits beams of electromagnetic radiation out of its magnetic poles.
The periods of pulsars make them very useful tools for astronomers. In 1983, certain types of pulsars were detected that at that time exceeded the accuracy of atomic clocks in keeping time.
The first #PulsarClock in the world was installed in St Catherine's Church, Poland, in 2011.
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#KnowledgeBit: The #PeacockThrone was a famous and one of the most expensive jewelled #Thrones - that was the seat of the #Mughal emperors in India.
Several historical diamonds decorated the throne - including the 186-carat Koh-i-Noor #Diamond.By some account, it cost two times more than the #TajMahal.
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#KnowledgeBit: The #PeacockThrone was a famous and one of the most expensive jewelled #Thrones - that was the seat of the #Mughal emperors in India.
Several historical diamonds decorated the throne - including the 186-carat Koh-i-Noor #Diamond.By some account, it cost two times more than the #TajMahal.
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#KnowledgeBit: The #PeacockThrone was a famous and one of the most expensive jewelled #Thrones - that was the seat of the #Mughal emperors in India.
Several historical diamonds decorated the throne - including the 186-carat Koh-i-Noor #Diamond.By some account, it cost two times more than the #TajMahal.
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#KnowledgeBit: The #PeacockThrone was a famous and one of the most expensive jewelled #Thrones - that was the seat of the #Mughal emperors in India.
Several historical diamonds decorated the throne - including the 186-carat Koh-i-Noor #Diamond.By some account, it cost two times more than the #TajMahal.
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#KnowledgeBit: The #PeacockThrone was a famous and one of the most expensive jewelled #Thrones - that was the seat of the #Mughal emperors in India.
Several historical diamonds decorated the throne - including the 186-carat Koh-i-Noor #Diamond.By some account, it cost two times more than the #TajMahal.
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#KnowledgeBit: Often called the Asian #Unicorn, little is known about the enigmatic #Saola in the two decades since its discovery. None exist in captivity and this rarely-seen mammal is already critically #Endangered.
It was described in 1993 following a discovery of remains in Vũ Quang Nature Reserve, Vietnam.
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#KnowledgeBit: A #Nunatak (from Inuit nunataq) is the summit or ridge of a mountain that protrudes from an ice field or glacier that otherwise covers most of the mountain or ridge. They often form natural pyramidal peaks.
Isolated nunataks are also called #Glacial #Islands, and smaller nunataks rounded by glacial action may be referred to as rognons.
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#KnowledgeBit: A #Carbon #Offset is a reduction or removal of emissions of carbon dioxide or other greenhouse gases made in order to compensate for emissions made elsewhere.
Some common examples of projects include reforestation, building renewable energy, carbon-storing agricultural practices, and waste and landfill management.
https://knowledgezone.co.in/trends/explorer?topic=Carbon-Offset
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#KnowledgeBit: #LIGO, Laser Interferometer Gravitational-Wave Observatory, is the world's largest gravitational wave observatory.
LIGO is designed to detect gravitational waves released when two neutron stars or black holes spiral into each other or when a stellar core collapses and causes a Type II supernova.
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#KnowledgeBit: Lise Meitner, called the "German #MarieCurie" by Albert Einstein, was a brilliant Austrian-Swedish physicist who made significant contributions to the field of nuclear physics.
She is most famous for her work on #Nuclear #Fission, a discovery for which her colleague Otto Hahn received the Nobel Prize in Chemistry in 1944.
https://knowledgezone.co.in/posts/Lise-Meitner--German-Marie-Curie-67f681e2ed9bc0c45547d9ad
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#KnowledgeBit: #Karyogram is a diagram or #Photograph of the #Chromosomes of a cell, arranged in homologous pairs and in a numbered sequence. The way chromosomes are organized in the image makes them easy to visualize.
It is also called #Idiogram.
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#KnowledgeBit: The #Oort Cloud is a vast, spherical shell of icy bodies that surrounds our solar system. It's located at the very edge of our solar system, roughly 1,000 to 10,000 times the distance between Earth and the Sun.
Many comets that visit our inner solar system are thought to originate from the Oort Cloud.
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#KnowledgeBit: #Inventors are individuals who introduce new ideas, methods, or products. They are the driving force behind progress and development. #Inventions are the tangible results of their creativity and ingenuity.
Here are some influential innovators and their inventions.
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#KnowledgeBit: #Carcinisation is a form of convergent evolution where crustaceans evolve a crab-like body plan from non-crab ancestors, a process coined by L. A. Borradaile as "Nature's many attempts to evolve a crab".
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#KnowledgeBit: Leonhard #Euler is widely considered to be the most prolific mathematician; his 866 publications as well as his correspondences are being collected in the Opera Omnia Leonhard Euler which, when completed, will consist of 81 quarto volumes.
Carl Friedrich Gauss said that studying his work is still the best way to learn mathematics. Much of Euler's work was produced in the last 20 years of his life, when he was blind.
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#KnowledgeBit: In November 1572, Danish astronomer Tycho Brahe was among those who noticed a new bright object in the constellation #Cassiopeia who thought it to be a new Star.
Astronomers now know that Tycho's new star was not new at all. Rather it signaled the death of a star in a supernova. It is now named after Tycho as "The Tycho Supernova".