Scientists Regrow Retinal Cells in The Lab Using Nanotechnology
The degeneration is the consequence of damaged retinal pigment cells. Our bodies are unable to grow and replace these cells once they start dying, so scientists have been exploring alternative methods to replace them and the membrane within which they sit.
"In the past, scientists would grow cells on a flat surface, which is not biologically relevant."
"Using these new techniques the cell line has been shown to thrive in the 3D environment provided by the scaffolds."
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The degeneration is the consequence of damaged retinal pigment cells. Our bodies are unable to grow and replace these cells once they start dying, so scientists have been exploring alternative methods to replace them and the membrane within which they sit.
"In the past, scientists would grow cells on a flat surface, which is not biologically relevant."
"Using these new techniques the cell line has been shown to thrive in the 3D environment provided by the scaffolds."
Article
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ScienceAlert
Scientists Regrow Retinal Cells in The Lab Using Nanotechnology
One day, this could help millions.
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US Lab Achieves Fusion Ignition in Repeat of Breakthrough Experiment
For a second time since its landmark fusion event in 2022, the US National Ignition Facility (NIF) has squeezed enough energy out of a diamond capsule packed with hydrogen to keep the fusion reaction running. [aka net positive fusion]
Though still far short of producing a reliable, self-sustaining source of power for the community, the repeat achievement is bound to provide vital information on how to improve the technology.
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For a second time since its landmark fusion event in 2022, the US National Ignition Facility (NIF) has squeezed enough energy out of a diamond capsule packed with hydrogen to keep the fusion reaction running. [aka net positive fusion]
Though still far short of producing a reliable, self-sustaining source of power for the community, the repeat achievement is bound to provide vital information on how to improve the technology.
Article
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ScienceAlert
US Lab Achieves Fusion Ignition in Repeat of Breakthrough Experiment
Lightning strikes twice.
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Professor Says He's Invented A Real-life "Freeze Ray"
The problem with being in space or an extremely thin atmosphere is that there's "very little air that can cool," Hopkins explained. Bringing a bunch of coolant isn't a great solution, either, "because that’s going to increase the weight, and you lose efficiency."
A prototype device, as detailed in a new paper his team published in the journal ACS Nano, takes advantage of an unusual physical property of plasma, which is commonly referred to as the "fourth state of matter."
In previous experiments, Hopkins and his colleagues found that a purple jet of plasma cooled a gold-plated surface before heating it up — a puzzling yet replicable result...
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The problem with being in space or an extremely thin atmosphere is that there's "very little air that can cool," Hopkins explained. Bringing a bunch of coolant isn't a great solution, either, "because that’s going to increase the weight, and you lose efficiency."
A prototype device, as detailed in a new paper his team published in the journal ACS Nano, takes advantage of an unusual physical property of plasma, which is commonly referred to as the "fourth state of matter."
In previous experiments, Hopkins and his colleagues found that a purple jet of plasma cooled a gold-plated surface before heating it up — a puzzling yet replicable result...
Article
@EverythingScience
THE_BYTE.
Professor Says He's Invented a Real-Life "Freeze Ray"
A professor at the University of Virginia claims to have created a "freeze ray"-like device that was apparently inspired by Mr. Freeze.
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Some Meteorites Are Mysteriously Magnetic, And We Finally Know Why
One of the striking things about iron meteorites is that they are often magnetic. The magnetism isn't strong, but it holds information about their origin.
One type of meteorite, known as IVA, is known to be fragments of smaller asteroids. Small asteroids don't have strong magnetic fields, so IVA meteorites shouldn't be magnetic, but many of them are. There's a new study showing how that's possible.
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One of the striking things about iron meteorites is that they are often magnetic. The magnetism isn't strong, but it holds information about their origin.
One type of meteorite, known as IVA, is known to be fragments of smaller asteroids. Small asteroids don't have strong magnetic fields, so IVA meteorites shouldn't be magnetic, but many of them are. There's a new study showing how that's possible.
Article
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ScienceAlert
Some Meteorites Are Mysteriously Magnetic, And We Finally Know Why
We never knew how this was possible.
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It's Now Official: July Was Earth's Hottest Month Since Official Records Began
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Article
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ScienceAlert
It's Now Official: July Was Earth's Hottest Month Since Official Records Began
"The era of global boiling has arrived."
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A Solar Flare Just Knocked Out Radio Across The US, And More Are on The Way
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Article
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ScienceAlert
A Solar Flare Just Knocked Out Radio Across The US, And More Are on The Way
The Sun is getting BUSY.
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AI recreates clip of Pink Floyd song from recordings of brain activity
An artificial intelligence has created a recognisable cover of a Pink Floyd song by analysing brain activity recorded while people listened to the original. The findings further our understanding of how we perceive sound and could eventually improve devices for people with speech difficulties.
See article for audio comparison
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An artificial intelligence has created a recognisable cover of a Pink Floyd song by analysing brain activity recorded while people listened to the original. The findings further our understanding of how we perceive sound and could eventually improve devices for people with speech difficulties.
See article for audio comparison
Article
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New Scientist
AI recreates clip of Pink Floyd song from recordings of brain activity
An artificial intelligence can guess what a song sounds like based on patterns of brain activity recorded while people were listening to it
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Media is too big
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THE HUMAN FUTURE: A Case for Optimism
(720p)
Change is coming. Humanity is entering a turbulent new era, unprecedented in both Earth and Human history. To survive the coming centuries and fulfill our potential as a species, we will have to overcome the biggest challenges we have ever faced, from extreme climate change, to rogue A.I., to the inevitable death of the sun itself.
The headlines make our chances look bleak. But when you look at our history and our tenacity, it's clear that humanity is uniquely empowered to rise to the challenges we face.
If we succeed, our potential is cosmic in scale. Incredible prosperity is within our reach. Being optimistic is not only justified, it's a powerful weapon in the fight for a higher future.
00:00 Introduction
02:50 Part I: Collapse
15:30 Part II: Plateau
19:00 Part III: Transcendence
🌐 Melodysheep (4K)
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(720p)
Change is coming. Humanity is entering a turbulent new era, unprecedented in both Earth and Human history. To survive the coming centuries and fulfill our potential as a species, we will have to overcome the biggest challenges we have ever faced, from extreme climate change, to rogue A.I., to the inevitable death of the sun itself.
The headlines make our chances look bleak. But when you look at our history and our tenacity, it's clear that humanity is uniquely empowered to rise to the challenges we face.
If we succeed, our potential is cosmic in scale. Incredible prosperity is within our reach. Being optimistic is not only justified, it's a powerful weapon in the fight for a higher future.
00:00 Introduction
02:50 Part I: Collapse
15:30 Part II: Plateau
19:00 Part III: Transcendence
@EverythingScience
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Special delivery! Biggest-ever haul of asteroid dust and rock returns to Earth
A saucer-shaped capsule parachuted down gently in the Utah desert today, after a years-long journey through space. Its cargo is a precious collection of rocks and dust from the asteroid Bennu — the first time NASA has ever brought pieces of this type of celestial object back to Earth.
Over the coming days, NASA will fly the bits of Bennu to the Johnson Space Center in Houston, Texas. There, curators will carefully disassemble the container and begin analysing the chemistry and mineralogy of the pristine samples — which might hold clues to the origins of the Solar System.
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A saucer-shaped capsule parachuted down gently in the Utah desert today, after a years-long journey through space. Its cargo is a precious collection of rocks and dust from the asteroid Bennu — the first time NASA has ever brought pieces of this type of celestial object back to Earth.
Over the coming days, NASA will fly the bits of Bennu to the Johnson Space Center in Houston, Texas. There, curators will carefully disassemble the container and begin analysing the chemistry and mineralogy of the pristine samples — which might hold clues to the origins of the Solar System.
Article
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Nature
Special delivery! Biggest-ever haul of asteroid dust and rock returns to Earth
Nature - Samples collected by NASA’s OSIRIS-REx mission excite scientists with their potential to reveal secrets of the Solar System.
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This is what Earth’s continents will look like in 250 million years
Earth is currently thought to be in the middle of a supercontinent cycle as its present-day continents drift. The last supercontinent, Pangaea, broke apart about 200 million years ago. The next, dubbed Pangaea Ultima, is expected to form at the equator in about 250 million years, as the Atlantic Ocean shrinks and a merged Afro-Eurasian continent crashes into the Americas.
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Earth is currently thought to be in the middle of a supercontinent cycle as its present-day continents drift. The last supercontinent, Pangaea, broke apart about 200 million years ago. The next, dubbed Pangaea Ultima, is expected to form at the equator in about 250 million years, as the Atlantic Ocean shrinks and a merged Afro-Eurasian continent crashes into the Americas.
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Novel AI Technique Reveals Sample’s Biological or Non-Biological Origin with 90% Accuracy
The search for definitive biosignatures — unambiguous markers of past or present life — is a central goal of paleobiology and astrobiology.
A team of researchers led by the Carnegie Institution for Science has developed a robust method that combines pyrolysis gas-chromatography mass-spectrometry (GC-MS) measurements of a wide variety of terrestrial and extraterrestrial carbonaceous materials with machine-learning-based classification to achieve 90% accuracy in the differentiation between samples of abiotic origins vs. biotic specimens, including highly-degraded, ancient, biologically-derived samples.
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The search for definitive biosignatures — unambiguous markers of past or present life — is a central goal of paleobiology and astrobiology.
A team of researchers led by the Carnegie Institution for Science has developed a robust method that combines pyrolysis gas-chromatography mass-spectrometry (GC-MS) measurements of a wide variety of terrestrial and extraterrestrial carbonaceous materials with machine-learning-based classification to achieve 90% accuracy in the differentiation between samples of abiotic origins vs. biotic specimens, including highly-degraded, ancient, biologically-derived samples.
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Sci.News
Novel AI Technique Reveals Sample’s Biological or Non-Biological Origin with 90% Accuracy
The search for definitive biosignatures -- unambiguous markers of past or present life -- is a central goal of paleobiology and astrobiology.
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It's Official: For The First Time Neutrinos Have Been Detected in a Collider Experiment
Earlier this year, for the first time, scientists detected neutrinos created in a particle collider.
The researchers said this work represented the first direct observation of collider neutrinos and would help us to understand how these particles form, what their properties are, and their role in the evolution of the Universe.
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Earlier this year, for the first time, scientists detected neutrinos created in a particle collider.
The researchers said this work represented the first direct observation of collider neutrinos and would help us to understand how these particles form, what their properties are, and their role in the evolution of the Universe.
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ScienceAlert
It's Official: For The First Time Neutrinos Have Been Detected in a Collider Experiment
The papers are in!
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Researcher finds way to get audio from still images and silent videos
Kevin Fu, a professor of electrical and computer engineering and computer science has figured out a way to get audio from pictures and even muted videos. Using Side Eye, a machine learning assisted tool that Fu and his research team created, Fu can determine the gender of someone speaking in the room where a photo was taken—and even the exact words they spoke.
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Kevin Fu, a professor of electrical and computer engineering and computer science has figured out a way to get audio from pictures and even muted videos. Using Side Eye, a machine learning assisted tool that Fu and his research team created, Fu can determine the gender of someone speaking in the room where a photo was taken—and even the exact words they spoke.
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Tech Xplore
Researcher finds way to get audio from still images and silent videos
With video calls becoming more common in the age of remote and hybrid workplaces, "mute yourself" and "I think you're muted" have become part of our everyday vocabularies. But it turns out muting yourself ...
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CERN Physicists Observe Influence of Gravity on Antimatter
“Einstein’s theory of general relativity says antimatter should behave exactly the same as matter,” said Dr. Jonathan Wurtele, a plasma physicist.
“Many indirect measurements indicate that gravity interacts with antimatter as expected, but until the result today, nobody had actually performed a direct observation that could rule out, for example, antihydrogen moving upwards as opposed to downwards in a gravitational field.”
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“Einstein’s theory of general relativity says antimatter should behave exactly the same as matter,” said Dr. Jonathan Wurtele, a plasma physicist.
“Many indirect measurements indicate that gravity interacts with antimatter as expected, but until the result today, nobody had actually performed a direct observation that could rule out, for example, antihydrogen moving upwards as opposed to downwards in a gravitational field.”
Article
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Sci.News
CERN Physicists Observe Influence of Gravity on Antimatter
Physicists from the ALPHA Collaboration at CERN’s Antimatter Factory have demonstrated the existence of gravity between antimatter and Earth, reaffirming Albert Einstein’s general theory of relativity.
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We May Have Just Found Evidence of a Cosmic String: a 'Crease' in The Universe
A strange pair of galaxies several billion light-years away could be evidence of a hypothetical 'crease' in the Universe's fabric known as a cosmic string.
According to an analysis of the properties of the pair, the two galaxies may not be distinct objects, but a duplicate image caused by a trick of the light. And the reason the light is duplicated could be because of a scar in the space between us and the galaxy, creating a gravitational lens.
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A strange pair of galaxies several billion light-years away could be evidence of a hypothetical 'crease' in the Universe's fabric known as a cosmic string.
According to an analysis of the properties of the pair, the two galaxies may not be distinct objects, but a duplicate image caused by a trick of the light. And the reason the light is duplicated could be because of a scar in the space between us and the galaxy, creating a gravitational lens.
Article
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ScienceAlert
We May Have Just Found Evidence of a Cosmic String: a 'Crease' in The Universe
Wait, what?
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In July the ESA Euclid mission to to create the most extensive 3D map of the Universe yet, was launched.
In November Euclid showed off its full capabilities with its first full-colour images of the cosmos.
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In November Euclid showed off its full capabilities with its first full-colour images of the cosmos.
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ESA
Euclid's first images: the dazzling edge of darkness
Today, ESA’s Euclid space mission reveals its first full-colour images of the cosmos. Never before has a telescope been able to create such razor-sharp astronomical images across such a large patch of the sky, and looking so far into the distant Universe.…
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Interesting Engineering
NASA’s Juno spacecraft will dive closest to Jupiter’s volcanic moon
NASA's Juno spacecraft is set to get up close and personal with Jupiter's extreme volcanic moon on Saturday, December 30.
NASA's Juno spacecraft is set to get up close and personal with Jupiter's extreme volcanic moon on Saturday, December 30.
The orbiter will pass 930 miles (1,500 kilometers) above Io's scorching surface during this unprecedented close approach. According to NASA, this is the closest approach to Io by any probe in over two decades.
This close encounter is expected to yield a wealth of data, unlocking mysteries surrounding the moon's volcanic activity.
"By combining data from this flyby with our previous observations, the Juno science team is studying how Io's volcanoes vary,"
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Medicalxpress
Engineers develop a vibrating, ingestible capsule that might help treat obesity
When you eat a large meal, your stomach sends signals to your brain that create a feeling of fullness, which helps you realize it's time to stop eating. A stomach full of liquid can also send these messages, ...
When you eat a large meal, your stomach sends signals to your brain that create a feeling of fullness, which helps you realize it's time to stop eating. A stomach full of liquid can also send these messages, which is why dieters are often advised to drink a glass of water before eating.
MIT engineers have now come up with a new way to take advantage of that phenomenon, using an ingestible capsule that vibrates within the stomach. These vibrations activate the same stretch receptors that sense when the stomach is distended, creating an illusory sense of fullness.
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