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Jan 6, 2023

James Webb reveals Milky Way-like galaxies existed much earlier than previously thought

Posted by in category: space

New James Webb observations reveal massive Milky Way-like structures that scientists didn’t expect to find in the early universe.

The James Webb Space Telescope continues to alter our understanding of the universe.

The $10 billion space observatory has observed Milky Way-like galaxies much further back in time than previously thought possible, a press statement reveals.

Jan 6, 2023

WhatsApp adds proxy support to tackle internet shutdowns

Posted by in category: internet

We’re launching proxy server support for WhatsApp users all over the world, says the tech giant.

WhatsApp users can now connect using proxy servers to stay online even if the internet is blocked or otherwise interfered with by clampdowns, the Meta has revealed.

We’re launching proxy support for WhatsApp users all over the world.

Continue reading “WhatsApp adds proxy support to tackle internet shutdowns” »

Jan 6, 2023

Mastercard launches web3-focused artist incubator with Polygon

Posted by in categories: blockchains, cryptocurrencies, economics, finance, internet, media & arts

Mastercard, one of the biggest financial payments providers in the world, is launching a web3-focused incubator to help artists connect with fans through a new medium, the company shared at CES 2023 on Friday.

“The core of this program is providing emerging artists with the web3 tools and skills they need to excel and advance their music careers in this digital economy,” Raja Rajamannar, chief marketing and communications officer at Mastercard, said to TechCrunch. “By providing access to experts and innovators in the space, the artists will be guided on how to incorporate web3 into their work throughout the entire program and then beyond.”

Mastercard partnered with Polygon, a scaling blockchain built on top of Ethereum, which has been making huge strides in the Web 2.0 ecosystem lately. In the past year, Polygon partnered with a number of other big brands like Starbucks for its Odyssey digital collectible rewards program and Disney for its accelerator program, while also having major clothing brands like Prada and Adidas launch NFT projects through its blockchain.

Jan 6, 2023

Closed timelike curve

Posted by in categories: cosmology, information science, mathematics, particle physics

In mathematical physics, a closed timelike curve (CTC) is a world line in a Lorentzian manifold, of a material particle in spacetime, that is “closed”, returning to its starting point. This possibility was first discovered by Willem Jacob van Stockum in 1937[1] and later confirmed by Kurt Gödel in 1949,[2] who discovered a solution to the equations of general relativity (GR) allowing CTCs known as the Gödel metric; and since then other GR solutions containing CTCs have been found, such as the Tipler cylinder and traversable wormholes.

Jan 6, 2023

How to Think About Relativity

Posted by in category: neuroscience

We’re going to be a little different. Our route into special relativity might be thought of as top-down, taking the idea of a unified space-time seriously from the get-go and seeing what that implies. We’ll have to stretch our brains a bit, but the result will be a much deeper understanding of the relativistic perspective on our universe.

The development of relativity is usually attributed to Albert Einstein, but he provided the capstone for a theoretical edifice that had been under construction since James Clerk Maxwell unified electricity and magnetism into a single theory of electromagnetism in the 1860s. Maxwell’s theory explained what light is — an oscillating wave in electromagnetic fields — and seemed to attach a special significance to the speed at which light travels. The idea of a field existing all by itself wasn’t completely intuitive to scientists at the time, and it was natural to wonder what was actually “waving” in a light wave.

Jan 6, 2023

What’s next for quantum computing

Posted by in categories: computing, quantum physics

This story is a part of MIT Technology Review’s What’s Next series, where we look across industries, trends, and technologies to give you a first look at the future

In 2023, progress in quantum computing will be defined less by big hardware announcements than by researchers consolidating years of hard work, getting chips to talk to one another, and shifting away from trying to make do with noise as the field gets ever more international in scope.

Jan 6, 2023

Ask Ethan: Is the Universe’s expansion accelerating or not?

Posted by in category: cosmology

Yes, dark energy is real. Yes, distant galaxies recede faster and faster as time goes on. But nthe expansion rate isn’t accelerating at all.

Jan 6, 2023

Geometry of brain, dimensions of mind: Researchers identify new ways to characterize states of consciousness

Posted by in categories: biotech/medical, chemistry, health, neuroscience

What it means to be conscious is more than just a philosophical question. Researchers continue to investigate how conscious experience arises from the electrochemical activity of the human brain. The answer has important implications for the way brain health is understood—from coma, wherein a person is alive but unable to move or respond to his or her environment, to surgical anesthesia, to the altered thought processes of schizophrenia.

Recent research suggests that there’s no one location in the brain that causes consciousness, pointing to a network phenomenon. However, tracing the various linkages between regions in the brain networks that give rise to awareness and wakefulness has been elusive.

A new approach using functional MRI, an imaging technique that allows you to see and measure brain activity through changes in blood flow over time, provides new insight into how we describe and study conscious states.

Jan 6, 2023

The Brain’s Ability to Perceive Space Expands Like the Universe

Posted by in category: space

Summary: Time spent in a novel environment causes neural representations to grow in a surprising way.

Source: Salk Institute.

Young children sometimes believe that the moon is following them, or that they can reach out and touch it. It appears to be much closer than is proportional to its true distance. As we move about our daily lives, we tend to think that we navigate space in a linear way.

Jan 6, 2023

The top five telomere myths

Posted by in categories: biological, life extension

Let me assure you that my intent in this article is not to refute any empirical data or established theories about telomeres. Instead, I will explain why I believe that the historical course of scientific discoveries and an outdated paradigm about the biological cause of aging have led to the use of inaccurate language in describing the roles and functions of telomeres.