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Science (General/Chat)

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  • Astronomy Picture of the Day - M1: The Expanding Crab Nebula

    03/20/2023 2:21:10 PM PDT · by MtnClimber · 12 replies ^ | 20 Mar, 2023 | Video Credit & Copyright: Detlef Hartmann
    Explanation: Are your eyes good enough to see the Crab Nebula expand? The Crab Nebula is cataloged as M1, the first on Charles Messier's famous list of things which are not comets. In fact, the Crab is now known to be a supernova remnant, an expanding cloud of debris from the explosion of a massive star. The violent birth of the Crab was witnessed by astronomers in the year 1054. Roughly 10 light-years across today, the nebula is still expanding at a rate of over 1,000 kilometers per second. Over the past decade, its expansion has been documented in this...
  • John Hay: The Most Important Person You Have Never Heard Of

    03/20/2023 10:48:45 AM PDT · by SunkenCiv · 14 replies
    YouTube ^ | July 1, 2020 | Lance Geiger, as The History Guy
    John Hay was President Lincoln's personal secretary, a position that began nearly five decades of public service. A diplomat who served multiple Administrations from Lincoln to Roosevelt, he was a central figure in defining the U.S. foreign policy that would be the basis of the United States role on the world stage in the twentieth century.This is original content based on research by The History Guy. Images in the Public Domain are carefully selected and provide illustration. As very few images of the actual event are available in the Public Domain, images of similar objects and events are used for...
  • Scratched EV battery? Your insurer may have to junk the whole car

    03/20/2023 10:19:59 AM PDT · by McGruff · 60 replies
    REUTERS ^ | March 20, 2023 | Nick Carey , Paul Lienert and Sarah Mcfarlane
    For many electric vehicles, there is no way to repair or assess even slightly damaged battery packs after accidents, forcing insurance companies to write off cars with few miles - leading to higher premiums and undercutting gains from going electric. And now those battery packs are piling up in scrapyards in some countries, a previously unreported and expensive gap in what was supposed to be a "circular economy." "We're buying electric cars for sustainability reasons," said Matthew Avery, research director at automotive risk intelligence company Thatcham Research. "But an EV isn't very sustainable if you've got to throw the battery...
  • SPRING BEGINS – March 20

    03/20/2023 5:57:29 AM PDT · by Red Badger · 27 replies
    National Day Calendar ^ | March 20 | Staff
    (Last Updated On: March 17, 2023) Spring begins on the March or vernal equinox, which is when the amount of sunshine is approximately 12 hours long. The amount of sunlight will incrementally increase until the first day of Summer. #SpringBegins The vernal equinox marks the moment the sun crosses the celestial equator. This is the imaginary line in the sky above the Earth’s equator, from south to north. The vernal equinox happens on March 19, 20, or 21 every year in the Northern Hemisphere. In the Southern Hemisphere, this same event marks the beginning of fall. Meteorologists mark the spring...
  • A Proposal For Exposing The True Costs Of Getting Electricity From Wind And Sun

    03/20/2023 4:47:41 AM PDT · by MtnClimber · 19 replies
    Manhattan Contrarian ^ | 18 Mar, 2023 | Francis Menton
    Every place that tries increasing the percentage of electricity generation that comes from wind and sun then experiences rapidly rising consumer electricity costs. The reasons why this happens are not complicated. Even at relatively low levels of wind and solar penetration, backup fossil fuel or other generation cannot be closed, so consumers must pay for two duplicate generation systems. At higher levels of wind/solar penetration, things like overbuilding, curtailment, and hugely expensive grid-scale energy storage come into play. In my post of February 8, 2023, I asked “Could anybody possibly be stupid enough to believe the line that wind and...
  • Quaint Island Life In A Narco State – Guinea-Bissau Part 2

    03/19/2023 10:07:21 PM PDT · by SunkenCiv · 6 replies ^ | February 20, 2022 | Chrissof
    ...we continue our travels through Guinea-Bissau, a country that just weeks ago experienced a deadly coup attempt that aimed to kill the president, prime minister, cabinet, and army officials, and succeeded in killing almost a dozen people before it was stopped. The president describes the coup attempt as an attack on democracy, and the officials say that it was led by a convicted drug baron...Before European colonial times, Guinea-Bissau and the Bissagos Islands in particular... were central to trade between Africa and Europe... but today, it's the drug trade that they are essential to.The islands are famous for having huge...
  • Astronomy Picture of the Day - Equinox at the Pyramid of the Feathered Serpent

    03/19/2023 2:12:23 PM PDT · by MtnClimber · 7 replies ^ | 19 Mar, 2023 | Image Credit & Copyright: Robert Fedez
    Explanation: To see the feathered serpent descend the Mayan pyramid requires exquisite timing. You must visit El Castillo -- in Mexico's Yucatán Peninsula -- near an equinox. Then, during the late afternoon if the sky is clear, the pyramid's own shadows create triangles that merge into the famous illusion of a slithering viper. Also known as the Temple of Kukulkan, the impressive step-pyramid stands 30 meters tall and 55 meters wide at the base. Built up as a series of square terraces by the pre-Columbian civilization between the 9th and 12th century, the structure can be used as a calendar...
  • We're Getting Less Intelligent, But Not For the Reasons You Seem to Think 6 min video

    03/18/2023 2:32:12 PM PDT · by Phoenix8 · 54 replies
    YouTube ^ | 3/18/2023 | professor Dutton
    None offered—-video
  • Astronomy Picture of the Day - Wolf-Rayet 124

    03/18/2023 2:15:32 PM PDT · by MtnClimber · 9 replies ^ | 18 Mar, 2023 | Image Credit: NASA, ESA, CSA, STScI, Webb ERO Production Team
    Explanation: Driven by powerful stellar winds, expanding shrouds of gas and dust frame hot, luminous star Wolf-Rayet 124 in this sharp infrared view. The eye-catching 6-spike star pattern is characteristic of stellar images made with the 18 hexagonal mirrors of the James Webb Space Telescope. About 15,000 light-years distant toward the pointed northern constellation Sagitta, WR 124 has over 30 times the mass of the Sun. Produced in a brief and rarely spotted phase of massive star evolution in the Milky Way, this star's turbulent nebula is nearly 6 light-years across. It heralds WR 124's impending stellar death in a...
  • Yerkes Observatory: Restoring the World’s Largest Refracting Telescope

    03/17/2023 11:34:30 AM PDT · by Sequoyah101 · 29 replies
    Grainger Know How ^ | 2/8/23 | Grainger Editorial Staff
    Built by the University of Chicago in 1897 in Williams Bay, Wisconsin, Yerkes Observatory is home to the world’s largest refracting telescope and famous astronomers like George Ellery Hale, Edwin Hubble and Carl Sagan worked and studied there. newer technology emerged the Great Refractor became less relevant, and the university closed the observatory in 2018. A non-profit formed by residents in the nearby Lake Geneva area took control, and in 2020 that group, Yerkes Future Foundation, embarked on a $20 million renovation effort.... Weighing about 82 tons, the Great Refractor is the world’s largest refracting telescope. The University of...
  • Incredible Invention- This Drone Could Change Everything

    03/18/2023 10:15:05 AM PDT · by ShadowAce · 13 replies
    Youtube ^ | 18 March 2023 | Mark Rober
    These folks engineering a much better way to deliver your basically anything.VIDEO This is pretty cool.
  • Chick Who Flipped Off Fauci Tells Us How She Got The Most EPIC Photo Of All Time

    03/17/2023 7:57:42 PM PDT · by Impala64ssa · 12 replies
    You Tube ^ | 3/17/23 | Benny Johnson
    I sat down with the LEGENDARY Patriot who Trolled Fauci, Melissa Lively to hear about her encounter with the rat doctor.
  • Astronomy Picture of the Day - The Medusa Nebula

    03/17/2023 3:05:24 PM PDT · by MtnClimber · 5 replies ^ | 17 Mar, 2023 | Image Credit & Copyright: Martin Bradley Chesterfield Astronomical Society
    Explanation: Braided and serpentine filaments of glowing gas suggest this nebula's popular name, The Medusa Nebula. Also known as Abell 21, this Medusa is an old planetary nebula some 1,500 light-years away in the constellation Gemini. Like its mythological namesake, the nebula is associated with a dramatic transformation. The planetary nebula phase represents a final stage in the evolution of low mass stars like the sun as they transform themselves from red giants to hot white dwarf stars and in the process shrug off their outer layers. Ultraviolet radiation from the hot star powers the nebular glow. The Medusa's transforming...
  • New Horizons Pluto probe notches 3 new discoveries in outer solar system

    03/17/2023 10:26:06 AM PDT · by BenLurkin · 15 replies ^ | Sharmila Kuthunur
    While scientists know that Pluto, like Earth, flipped on its side sometime in its past, Pluto's orientation before the flip and the degree to which it reoriented itself has not been well understood. Scientists who use New Horizons data to study Pluto's geologic past hope to find clues that explain this event. Now, a group of researchers has attributed Pluto's flip to the formation of Sputnik Planitia, a 620-mile-wide (1,000 km) basin that makes up half of the iconic heart-shaped region on Pluto. Researchers previously knew that Sputnik, which is filled with nitrogen ice, played a profound role in realigning...
  • House-size asteroid discovered this week will fly past Earth on Friday

    03/16/2023 2:25:52 PM PDT · by BenLurkin · 33 replies
    NY Post ^ | 03/16/2023
    The near-Earth object, called 2023 EY, has been posted on NASA’s asteroid database and listed as one of the next five asteroid approaches. Scientists estimate it is about 54 feet wide. A near-Earth object is classified as any space object that can come within 30 million miles of Earth. This asteroid’s closest Earth approach is roughly 149,000 miles.
  • Vanguard 1 was launched 65 Years Ago

    03/16/2023 8:40:02 PM PDT · by Richard from IL · 24 replies
    Vanguard 1, designed by my father, was launched 65 years ago. I talked about it on The John Batchelor Show.
  • Scientists in Japan create mice from two fathers

    03/17/2023 6:45:46 AM PDT · by SeekAndFind · 30 replies
    American Thinker ^ | 03/17/2023 | Eric Utter
    Scientists in Japan have just created mice by using two biological fathers.Well, tap the keg!Apparently, the mad scientists somehow managed to create “eggs” from the cells of two male mice…and subsequently proceeded to put those eggs inside surrogate mice…which eventually resulted in offspring.According to a report in the far-left media outlet The Guardian, male skin cells were reprogrammed into a stem cell-like state to create so-called induced pluripotent stem (iPS) cells. The Y-chromosome of these cells was then deleted and replaced by an X chromosome “borrowed” from another cell to produce iPS cells with two identical X chromosomes.Katsuhiko Hayashi, who...
  • Unexpected Effect: Nanorippled Graphene Becomes a Powerful Catalyst

    03/17/2023 5:11:40 AM PDT · by Red Badger · 15 replies
    Scitech Daily ^ | MARCH 16, 2023 | By UNIVERSITY OF MANCHESTER
    Graphene Sheet Scientists have found that nanoripples in graphene make it a strong catalyst, even though it was expected to be chemically inert. Their research, published in PNAS, demonstrated that nanoscale corrugations on graphene’s surface accelerate hydrogen splitting as well as the best metallic-based catalysts, and this effect may be present in all 2D materials. *********************************************************************** A team of researchers led by Prof. Andre Geim from the National Graphene Institute (NGI) have discovered that nanoripples in graphene can make it a strong catalyst, contrary to general expectations that the carbon sheet is as chemically inert as the bulk graphite from...
  • Astronomy Picture of the Day - Millions of Stars in Omega Centauri

    03/16/2023 3:20:02 PM PDT · by MtnClimber · 13 replies ^ | 16 Mar, 2023 | Image Credit & Copyright: Neil Corke, Heaven's Mirror Observatory
    Explanation: Globular star cluster Omega Centauri, also known as NGC 5139, is 15,000 light-years away. The cluster is packed with about 10 million stars much older than the Sun within a volume about 150 light-years in diameter. It's the largest and brightest of 200 or so known globular clusters that roam the halo of our Milky Way galaxy. Though most star clusters consist of stars with the same age and composition, the enigmatic Omega Cen exhibits the presence of different stellar populations with a spread of ages and chemical abundances. In fact, Omega Cen may be the remnant core of...
  • JWST Catches Sight of a Rare Star on The Brink of Going Supernova

    03/16/2023 9:04:32 AM PDT · by Red Badger · 16 replies
    Science Alert ^ | 16 March 2023 | By MICHELLE STARR
    JWST's new image of WR 124 and its nebula. (NASA, ESA, CSA, STScI, Webb ERO Production Team) There's scintillating beauty to be found in cosmic death. In a new image from the JWST, the spectacular final throes of a star nearing the end of its life are revealed in all their intricate detail. Located in the constellation Sagittarius, the star WR 124 is what's known as a Wolf-Rayet, which are rarely seen in the Milky Way. That's because only certain stars turn into Wolf-Rayets, and even then their time in that phase is so short; in just a few hundred...