3.085 - AMICOR (25) Vinte e Cinco Anos de AMICOR, comemoramos dia 17/05/2022
#Dra. Valderês A. Robinson Achutti (*13/06/1931+15/06/2021)
Visitando templos em Bangkok, Tailândia, em 1990.
(clicar em Apresentação de Slides)
#Academia SR Medicina
#Ilsa Ludvig - Centenária (29/05/2022) #
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Physicists Rewrite the Fundamental Law That Leads to DisorderBy PHILIP BALL The second law of thermodynamics is among the most sacred in all of science, but it has always rested on 19th century arguments about probability. New arguments trace its true source to the flows of quantum information.
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| Life’s First Peptides May Have Grown on RNA StrandsBy YASEMIN SAPLAKOGLU For the past few decades, researchers have favored an “RNA world” theory of life’s origins, but a recent study breathes fire into the possibility of a more expansive “RNA-peptide world.”
Read the blog Related: Origin-of-Life Study Points to Chemical Chimeras, Not RNA by Jordana Cepelewicz (2019) |
| Crisis in Particle Physics Forces a Rethink of What Is NaturalPodcast hosted by SUSAN VALOT; Story by NATALIE WOLCHOVER For three decades, researchers hunted in vain for new elementary particles that would have explained why nature looks the way it does. As physicists confront that failure, they’re reexamining a longstanding assumption: that big stuff consists of smaller stuff.
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| The Secret Math Behind Mind-Reading Magic TricksBy PRADEEP MUTALIK Four puzzle solutions reveal different ways to divine someone’s hidden number with impossibly little information.
Read the puzzle solution Related: Think of a Number. How Do Math Magicians Know What It Is? by Pradeep Mutalik |
| The Big Reveal of the Milky Way's Supermassive Black HoleVideo by EMILY BUDER More than three years after the release of the first image of a black hole, scientists from the Event Horizon Telescope (EHT) shared an image of the supermassive specimen at the center of our own Milky Way galaxy. In this video, EHT's scientists explain the science behind the big discovery.
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Good Habits There is more to determining whether a planet is habitable than its proximity to its sun. For PBS Space Time Matt O’Dowd and Moiya McTier describe the “galactic habitable zone”: a range of distances from the galactic center with the right stellar densities and metallicities for life to thrive. Galactic-scale features also play a role in the propagation of life. In 2019 Rebecca Boyle wrote for Quanta about a simulation that showed that galaxy dynamics would aid potential alien civilizations in intragalactic travel.
Constant Evaluation 100 years ago, Alexander Friedmann changed cosmology when he considered how the evolution of the universe would have changed if Einstein’s “cosmological constant” had different values, writes Tom Siegfried for Science News. Today we’re reasonably certain the cosmological constant is positive, but we don’t know its exact value. In a 2021 Quanta article, Charlie Wood wrote about how related issues might be solved if we give up the sacred cosmological principle: that the universe is homogeneous and isotropic. |
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| | #Plato: The Academy Plato’s enormous impact on later philosophy, education, and culture can be traced to three interrelated aspects of his philosophical life: his written philosophical dialogues, the teaching and writings of his student Aristotle, and the educational organization he began, “the Academy.” Plato’s Academy took its name from the place where its members congregated, the Akadēmeia, an area outside of the Athens city walls that originally held a sacred grove and later contained a religious precinct and a public gymnasium./.../ |
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