Sunday, September 26, 2021

3.050 - AMICOR (24)

 AMICOR 3.050 

#Dra. Valderês A. R. Achutti (*13/06/1931+15/06/2021)

Em Wasington, março 1996 - Encobrindo o obelisco...

#From: Pocket collections

 Every Planet in the Solar System

A guided tour of our planetary neighborhood, from mysterious Mercury to the dwarf planet Pluto and the search for the elusive Planet Nine. 
Pocket Collections

Mercury is shrinking. Venus may once have been as fit for life as Earth. It rains diamonds on Neptune.
Get to know the planets beyond ”My Very Excellent Mom Just Served Us Noodles” with one
fascinating thing to read about each of the eight, or, depending on who you ask, nine worlds in our
Solar System. Yes, we’re throwing Pluto a bone.

#From:  Science News

 10 scientific surprises of Science News’ first 100 years

Antimatter, dark energy, plate tectonics and the role of DNA were unexpected discoveries

black and white photograph of Edwin Hubble looking into a telescope























n 1929, Edwin Hubble (shown here at Mount Wilson Observatory) showed that more distant galaxies were
flying away from us faster than nearby galaxies, which suggested an expanding universe.

PICTORIAL PRESS LTD/ALAMY STOCK PHOTO

From the day Archimedes cut his bath short to shout “Eureka,” science has been a
constant source of surprises. 
Even after the abundant accumulation of knowledge in the intervening two millennia,
science still retains the capacity to astonish, and the century since
 Science News began
reporting has produced its share of shocking discoveries. Some such surprises happened
suddenly (if not necessarily with eureka moments); in other cases, revolutionary shifts in
understanding took a while to seep slowly into general scientific awareness.
In either case, Science News was sooner or later on the job during the last 100 years,
identifying and reporting the never-ending series of surprises, too numerous to mention
here, except for my Top 10./;../

#From: Live Science

Scientists pinpoint age of molten 'Einstein ring'
(ESA/Hubble & NASA/S. Jha/Acknowledgement: L. Shatz)

















New science from a stunning 2020 Hubble image illuminates the back story behind a shining l
oop of light. 
The circle, also called an Einstein ring after the famous physicist who predicted its existence,
came about due to a galactic-scale illusion. The galaxy this so-called "molten ring" curls
around is called as GAL-CLUS-022058s and it is located in the Southern Hemisphere
constellation of Fornax, the Furnace.

As scientists affiliated with the Hubble Space Telescope wrote in a statement, the big ring is
actually a light smear created by a lensing effect that occurs when a foreground object with
strong gravity magnifies the light of a more distant galaxy behind it. New research suggests
that we are seeing the galaxy in the ring as it was about 9 billion years ago, when the universe
was only about one-third its present age of 13.8 billion years.

 Full Story: LiveScience (9/26) 

#From: Quanta Magazine

My Bookmarks

QUANTUM COMPUTING | ALL TOPICS

 

Major Quantum Computing Strategy Suffers Serious Setbacks

By PHILIP BALL

So-called topological quantum computing would avoid many of the problems that stand in the way of full-scale quantum computers. But high-profile missteps have led some experts to question whether the field is fooling itself.

Read the article

PARTICLE PHYSICS

 

‘Impossible’ Particle Discovery Adds Key Piece to the Strong Force Puzzle

By CHARLIE WOOD

The unexpected discovery of the double-charm tetraquark has given physicists
a new tool with which to hone their understanding of the strongest of
nature’s fundamental forces.


Read the blog

Related: 
What Goes On in a Proton? Quark Math
Still Conflicts With Experiments.

by Charlie Wood (2020)

Q&A

 

Anil Seth Finds Consciousness in Life’s Push Against Entropy

Interview by DAN FALK;
Video by EMILY BUDER

In a new book, the neuroscientist describes the principles, philosophy
and experimentation that have brought scientists closer to understanding the phenomenon of consciousness.


Read the interview | Watch the video

Related: 
Neuroscience Readies for a
Showdown Over Consciousness Ideas 

by Philip Ball (2019)

TOPOLOGY

 

In Topology, When Are Two Shapes the Same?

By KEVIN HARTNETT

As topologists seek to classify shapes, the effort hinges on how to define a manifold and what it means for two of them to be equivalent.

Read the blog

Related: 
New Math Book Rescues
Landmark Topology Proof

by Kevin Hartnett

QUANTA SCIENCE PODCAST

 

How Many Numbers Exist? Infinity Proof Moves Math Closer to an Answer.

Podcast Hosted by SUSAN VALOT;
Story by NATALIE WOLCHOVER

The number of real numbers was long thought to be unknowable. But mathematicians now feel they may be closing in on an answer.

Hear the podcast | Read the article

Around the Web

Water You Know
DeepMind has unveiled its next project, a program that usually bests simulations at near-term rain forecasting, Will Douglas Heaven reports for MIT Tech Review. Deep learning algorithms find hidden patterns. Similar programs have seen eight times further into the future of chaotic systems than rival methods, Natalie Wolchover reported for Quanta in 2018.


One More Sun Than Tatooine
Researchers have found what may be the first planet known to orbit three stars. The giant reveals its presence by clearing a gap in a dusty disk surrounding the stellar triplet, Jonathan O’Callaghan reports for The New York Times. Textbook theories are now being put to the test thanks largely to ALMA, an array of radio telescopes capable of catching planets in the act of formation from dusty stellar disks, Josh Sokol reported for Quanta in 2018.


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