The Pleiades
physics professors are really going through it- every day, I think about my quantum physics professor who once went on a rant about how there's too many types of mustard these days followed by the words "well, at least quantum physics is less complicated than the mustard aisle" followed by one of the most cursed derivations I have ever seen
Hey, so--we cooled your boyfriend down to a hundredth of a kelvin above absolute zero. Yeah, it was so cold that all of the chemical reactions in his body ceased. Sorry. We, uh, yeah, we used him as a dielectric material in a tiny qubit. And then we quantum-entangled him with another qubit, just to see if we could. Sorry. Yeah, anyway, we thawed him out after two weeks and apparently he's doing fine now. Didn't really teach us anything about how quantum processes work in biological systems, but it sure was, uh, cool. If you'll pardon the pun.
Our Sun is a maelstrom of light and heat, a constant battlefield for plasma and magnetic fields. This recent prominence, captured by Andrea Vanoni and others, bore a striking triangular shape. (Image credit: A. Vanoni; via APOD) Read the full article
Total Solar Eclipse l April 2024 l U.S. & Canada
Cr. Deran Hall l Rami Ammoun(236) l GabeWasylko l REUTERS l KendallRust l Joshua Intini l Alfredo Juárez l KuzcoKhanda
Engineer Karen Leadlay in a General Dynamics computer lab, 1964.
Photographs of the Saturn V rocket by Dave Wilson, 2014
Get dazzled by the true spectrum of solar beauty. From fiery reds to cool blues, explore the vibrant hues of the Sun in a mesmerizing color order. The images used to make this gradient come from our Solar Dynamics Observatory. Taken in a variety of wavelengths, they give scientists a wealth of data about the Sun. Don't miss the total solar eclipse crossing North America on April 8, 2024. (It's the last one for 20 years!) Set a reminder to watch with us.
Milky Way Over Easter Island
Flaps perform essential jobs. From pumping hearts to revving engines, flaps help fluid flow in one direction. Without them, keeping liquids going in the right direction is challenging to do. Researchers from the University of Washington have discovered a new way to help liquid flow in only one direction -- but without flaps. In a paper published Sept. 24 in the Proceedings of the National Academy of Sciences, they report that a flexible pipe -- with an interior helical structure inspired by shark intestines -- can keep fluid flowing in one direction without the flaps that engines and anatomy rely upon. Human intestines are essentially a hollow tube. But for sharks and rays, their intestines feature a network of spirals surrounding an interior passageway. In a 2021 publication, a different team proposed that this unique structure promoted one-way flow of fluids -- also known as flow asymmetry -- through the digestive tracts of sharks and rays without flaps or other aids to prevent backup. That claim caught the attention of UW postdoctoral researcher Ido Levin, lead author on the new paper.
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