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Archive for the ‘space’ category: Page 234

Feb 21, 2023

David Hilbert — The Foundations of Geometry

Posted by in categories: mathematics, space

David Hilbert was a great leader and spokesperson for the discipline of mathematics in the early 20th Century. But he was an extremely important and respected mathematician in his own right.

Like so many great German mathematicians before him, Hilbert was another product of the University of Göttingen, at that time the mathematical centre of the world, and he spent most of his working life there. His formative years, though, were spent at the University of Königsberg, where he developed an intense and fruitful scientific exchange with fellow mathematicians Hermann Minkowski and Adolf Hurwitz.

Sociable, democratic and well-loved both as a student and as a teacher, and often seen as bucking the trend of the formal and elitist system of German mathematics, Hilbert’s mathematical genius nevertheless spoke for itself. He has many mathematical terms named after him, including Hilbert space (an infinite dimensional Euclidean space), Hilbert curves, the Hilbert classification and the Hilbert inequality, as well as several theorems, and he gradually established himself as the most famous mathematician of his time.

Feb 21, 2023

Space travel influences the way the brain works

Posted by in categories: biological, space

Scientists of the University of Antwerp and University of Liège (Belgium) have found how the human brain changes and adapts to weightlessness after being in space for six months. Some of the changes turned out to be lasting—even after eight months back on Earth. Raphaël Liégeois, soon to be the third Belgian in space, acknowledges the importance of the research “to prepare the new generation of astronauts for longer missions.”

A child who learns not to drop a glass on the floor, or a predicting the course of an incoming ball to hit it accurately are examples of how the incorporates the physical laws of gravity to optimally function on Earth. Astronauts who go to space reside in a weightless environment, where the brain’s rules about gravity are no longer applicable.

A new study on in cosmonauts has revealed how the brain’s organization is changed after a six-month mission to the International Space Station (ISS), demonstrating the adaptation that is required to live in weightlessness. The findings are published in the journal Communications Biology.

Feb 20, 2023

Chinese asteroid-detection system enters new phase of construction

Posted by in category: space

The “China Compound Eye” radar array aims to track and characterize potentially threatening deep-space objects.

Feb 20, 2023

Researchers propose new mechanism for early chemical evolution

Posted by in categories: chemistry, evolution, space

Scientists from The Ohio State University have a new theory about how the building blocks of life—the many proteins, carbohydrates, lipids and nucleic acids that compose every organism on Earth—may have evolved to favor a certain kind of molecular structure.

It has to do with a concept called chirality. A geometric property inherent to certain , chirality can dictate a molecule’s shape, chemical reactivity, and how it interacts with other matter. Chirality is also sometimes referred to as handedness, as it can be best described as the dichotomy between our hands: Though they are not identical, the right and the left hand are mirror images of each other, and can’t be superimposed, or exactly overlaid on one another.

In the journal ACS Earth and Space Chemistry, researchers now propose a new model of how the molecules of life may have developed their “handedness.”

Feb 20, 2023

The Most Realistic Humanoid Robots In The World: How Will Artificial Intelligence Affect Our Future?

Posted by in categories: business, mathematics, robotics/AI, space

https://youtube.com/watch?v=4LevUzfdBtw

In this video, I’ll discuss some of the most advanced humanoid robots currently in development and reveal if the future really is bright for Robotics.

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Feb 20, 2023

Hidden lights on the sun could help crack solar atmosphere mystery

Posted by in categories: energy, space

NASA’s NuSTAR telescope has spotted patches of high-energy X-rays radiation across the sun’s surface that could explain why the star’s atmosphere is mysteriously hot.

Feb 20, 2023

Detecting asteroids near the sun with NEOMIR

Posted by in category: space

Spotting asteroids near the sun

Astronomers have gotten good at detecting even small asteroids that might be headed toward Earth. But an unknown number of asteroids have paths that might carry them toward us from the sun’s direction. And it’s tough – or impossible – to spot those asteroids coming toward us. ESA’s planned NEOMIR mission will orbit between Earth and the sun at the first Lagrange point (L1). It’ll act as an early warning system for asteroids – 65 feet (20 meters) and larger – that instruments on Earth’s surface cannot see.

NEOMIR stands for Near-Earth Object Mission in the Infrared.

Feb 20, 2023

The Dream of Space Mining Remains Illusory at Present

Posted by in category: space

AstroForge plans to mine asteroids, not for gold, but for platinum and other high-value metals. Will it succeed where others haven’t?

Feb 19, 2023

Scientists reveal ‘invisible’ galaxy from the early universe, using space-time trick predicted by Einstein

Posted by in category: space

Using the ALMA telescope in Chile and Einstein’s theory of relativity, scientists observed a young galaxy in the early universe that is invisible in nearly every wavelength.

Feb 19, 2023

Moon landings: Astronomers to track and catalog lunar debris in a ‘world first’

Posted by in categories: government, space

Scientists and government agencies have been worried about the space junk surrounding Earth for decades. But humanity’s starry ambitions are farther reaching than the space just around Earth.

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