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Dec 30, 2023

Scientists Propose New Explanation for “Impossible” Gamma-Ray Burst

Posted by in categories: cosmology, evolution, physics

In 2022, scientists from Northwestern University presented novel observational data indicating that long gamma-ray bursts (GRBs) might originate from the collision of a neutron star with another dense celestial body, such as another neutron star or a black hole — a finding that was previously believed to be impossible.

Now, another Northwestern team offers a potential explanation for what generated the unprecedented and incredibly luminous burst of light.

Continue reading “Scientists Propose New Explanation for ‘Impossible’ Gamma-Ray Burst” »

Dec 30, 2023

Brainwave Riders: How Ultrasound Microbubbles Could Change Medicine

Posted by in categories: biotech/medical, neuroscience

ETH Zurich researchers have shown for the first time that microvehicles can be steered through blood vessels in the brains of mice using ultrasound. They hope that this will eventually lead to treatments capable of delivering drugs with pinpoint precision.

Dec 30, 2023

Quantum Leap in Graphite: Attoscience Lights the Way to Superconductivity

Posted by in categories: futurism, materials

Advancements in attosecond soft-X-ray spectroscopy by ICFO researchers have transformed material analysis, particularly in studying light-matter interactions and many-body dynamics, with promising implications for future technological applications.

X-ray absorption spectroscopy is an element-selective and electronic-state sensitive technique that is one of the most widely used analytical techniques to study the composition of materials or substances. Until recently, the method required arduous wavelength scanning and did not provide ultrafast temporal resolution to study electronic dynamics.

Over the last decade, the Attoscience and Ultrafast Optics group at ICFO le, d by ICREA Prof. at ICFO Jens Biegert h, has developed attosecond soft-X-ray absorption spectroscopy into a new analytical tool without the need for scanning and with attosecond temporal resolution.[1,2].

Dec 30, 2023

What Will Humans Look Like in 1 Million Years?

Posted by in categories: evolution, futurism

Go to https://sponsr.is/cs_whatif and use code WHATIFSHOW to save 25% off today. Thanks to Curiosity Stream for sponsoring today’s video.

One thousand years into the future, humans might look like this.

Continue reading “What Will Humans Look Like in 1 Million Years?” »

Dec 30, 2023

A guide to the solar system’s planets in 2024

Posted by in category: space

In 2024, we’ll have much to look at in our wonderful solar system.

Dec 30, 2023

Synapses without tension fail to fire in an in vitro network of hippocampal neurons

Posted by in categories: chemistry, robotics/AI

Neurons in the brain communicate with each other at their synapses. It has long been understood that this communication occurs through biochemical processes. Here, we reveal that mechanical tension in neurons is essential for communication. Using in vitro rat hippocampal neurons, we find that 1) neurons become tout/tensed after forming synapses resulting in a contractile neural network, and 2) without this contractility, neurons fail to fire. To measure time evolution of network contractility in 3D (not 2D) extracellular matrix, we developed an ultrasensitive force sensor with 1 nN resolution. We employed Multi-Electrode Array and iGluSnFR, a glutamate sensor, to quantify neuronal firing at the network and at the single synapse scale, respectively. When neuron contractility is relaxed, both techniques show significantly reduced firing. Firing resumes when contractility is restored.

Dec 30, 2023

Welcome to the Cyborg Era: Brain Implants Transformed Lives This Year

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

This year gave rise to an incredible mix of brain implants that can record, decode, and alter brain activity.

It sounds like déjà vu—brain-machine interfaces also lived rent free in my head in last year’s roundup, but for good reason. Neuroscientists are building increasingly sophisticated and flexible electronic chips that seamlessly integrate machine intelligence with our brains and spinal cords at record-breaking speed. What was previously science fiction—for example, helping paralyzed people regain their ability to walk, swim, and kayak—is now reality.

This year, brain implants further transformed people’s lives. The not-so-secret sauce? AI.

Dec 30, 2023

Google to Replace 30,000 Jobs with Artificial Intelligence? | Vantage with Palki Sharma

Posted by in categories: employment, robotics/AI

Google is reportedly planning to cut 30,000 jobs by integrating artificial intelligence into daily operations. 2023 has witnessed mass layoffs triggered by the emergence of AI replacements. Palki Sharma explains how you can save your job from an AI takeover. — Google | Mass Layoffs | Artificial Intelligence | Job Opportunities | Firstpost | World News | Vantage | Palki Sharma #google #layoffs #jobmarket #ai #artificialintelligence #technology #firstpost #vantageonfirstpost #palkisharma #worldnews Vantage is a ground-breaking news, opinions, and current affairs show from Firstpost. Catering to a global audience, Vantage covers the biggest news stories from a 360-degree perspective, giving viewers a chance to assess the impact of world events through a uniquely Indian lens. The show is anchored by Palki Sharma, Managing Editor, Firstpost. By breaking stereotypes, Vantage aims to challenge conventional wisdom and present an alternative view on global affairs, defying the norm and opening the door to new perspectives. The show goes beyond the headlines to uncover the hidden stories – making Vantage a destination for thought-provoking ideas. Vantage airs Monday to Friday at 9 PM IST on Firstpost across all leading platforms. Subscribe to Firstpost channel and press the bell icon to get notified when we go live. / @firstpost Follow Firstpost on Instagram: / firstpost Follow Firstpost on Facebook: / firstpostin Follow Firstpost on Twitter: / firstpost Follow Firstpost on WhatsApp: https://www.whatsapp.com/channel/0029

Dec 30, 2023

ChatGPT will lie, cheat and use insider trading when under pressure to make money, research shows

Posted by in categories: economics, finance, robotics/AI

Scientists trained GPT-4 to be an AI trader for a fictional financial institution — and it performed insider trading when put under pressure to do well.

Dec 30, 2023

A dense quark liquid is distinct from a dense nucleon liquid

Posted by in category: particle physics

Atomic nuclei are made of nucleons (like protons and neutrons), which themselves are made of quarks. When crushed at high densities, nuclei dissolve into a liquid of nucleons and, at even higher densities, the nucleons themselves dissolve into a quark liquid.

In a new study, published in the journal Physical Review B, researchers addressed the question of whether the liquids of nucleons and quarks are fundamentally different.

Their suggest that these liquids are different. Both types of liquids produce vortices when they rotate, but in liquids, the vortices carry a “color-magnetic field,” similar to an ordinary magnetic field. There is no such effect in nucleon liquids. Thus, these sharply distinguish quark liquids from nuclear liquids.