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Aug 20, 2022

Supermassive black hole pair nearest Earth is locked in a violent cosmic dance

Posted by in category: cosmology

At the heart of merging galaxies is the closest pairing of supermassive black holes ever found that will eventually collide and create a larger black hole.

Aug 20, 2022

Computer made from liquid crystals would ripple with calculations

Posted by in categories: computing, electronics

Liquid crystals consist of rod-shaped molecules that slosh around like a fluid, and in those that are nematic the molecules are mostly parallel to each other. For devices like TV screens, the odd molecule that faces the wrong way has to be removed during the manufacturing process, but these defects are key for building a liquid crystal computer, says Kos.

In ordinary computers, information is stored as a series of bits, electronic versions of 1s and 0s. In Kos and Dunkel’s liquid crystal computer, the information would instead be translated into a series of defective orientations. A liquid crystal defect could encode a different value for every different degree of misalignment with other molecules.

Electric fields could then be used to manipulate the molecules to perform basic calculations, similar to how simple circuits called logic gates work in an ordinary computer. Calculations on the proposed computer would appear as ripples spreading through the liquid.

Aug 20, 2022

Asteroid Ryugu Reveals Ancient Grains of Stardust Older Than The Solar System

Posted by in category: space

Tiny fragments of rock brought back from an asteroid in near-Earth solar orbit are so old, they predate the Solar System.

A new analysis of samples of asteroid Ryugu has revealed the presence of mineral grains forged in the outflows or explosions of old stars before our own Sun formed.

As identified by previous research, these presolar grains reveal Ryugu is very similar to a class of meteorites known as Ivuna-type carbonaceous (CI) chondrites. However, the presence of some fragile grains indicate that parts of Ryugu may be unchanged since the asteroid formed.

Aug 20, 2022

GoogleAI launches YouTube Channel for Free Resources on AI/ML

Posted by in categories: biotech/medical, health, information science, quantum physics, robotics/AI

Google AI announced the launch of the Google Research YouTube channel today. The channel is set to focus on a wide range of subjects like AI/ML, robotics, theory and algorithms, quantum computing, health and bioscience.

Aug 20, 2022

DARPA seeks AI solutions for sourcing critical minerals

Posted by in categories: robotics/AI, security

DARPA has launched a competition to find AI solutions that can help with sourcing critical minerals.

Critical minerals are raw, non-fuel materials that are vital for manufacturing products that are essential to national security.

DARPA is teaming up with the US Geological Survey (USGS) to explore how machine learning and AI can accelerate critical mineral assessments.

Aug 20, 2022

Physicists surprised to discover the proton contains a charm quark

Posted by in category: particle physics

The textbook description of a proton says it contains three smaller particles — two up quarks and a down quark — but a new analysis has found strong evidence that it also holds a charm quark.

Aug 20, 2022

Tiny Robot Constructed Entirely From DNA

Posted by in categories: biotech/medical, nanotechnology, robotics/AI

By scientists from Inserm, CNRS, and Université de Montpellier at the Structural Biology Center in Montpellier. The nano-robot could lead to a closer study of the mechanical forces applied at microscopic levels, which are important for various biological and pathological processes.

The study was published in Nature Communications.

Cellular Mechanosensitivity

Aug 20, 2022

Google Teaches Robots to Understand You on a Human Level

Posted by in category: robotics/AI

AI language skills let you command robots in plain English and help them navigate the chaos of the real world.

Aug 20, 2022

Can we make the future a million years from now go better?

Posted by in categories: ethics, futurism

You can buy What We Owe the Future here: https://www.basicbooks.com/titles/william-macaskill/what-we-…541618626/

In his new book about longtermism, What We Owe the Future, the philosopher William MacAskill argues that concern for the long-term future should be a key moral priority of our time. There are three central claims that justify this view. 1. Future people matter. 2. There could be a lot of them. 3. We can make their lives go better. In this video, we focus on the third claim.

Continue reading “Can we make the future a million years from now go better?” »

Aug 19, 2022

Theorem of everything: The secret that links numbers and shapes

Posted by in category: mathematics

Circa 2018 face_with_colon_three


For millennia mathematicians have struggled to unify arithmetic and geometry. Now one young genius could have brought them in sight of the ultimate prize.