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How can you test Starlink’s satellite laser communication system?
SpaceX came up with a truly unique method. For instance, how about playing the violin aboard a spacecraft while being accompanied by several orchestras on Earth—all in real-time!
During the Polaris Dawn mission, astronaut Sarah Gillis performed Rey’s Theme from Star Wars: The Force Awakens while aboard the Dragon spacecraft in orbit. Her performance was accompanied by orchestras from the United States, Brazil, Sweden, Venezuela, and several other countries. The result? A flawless test of the satellite system!
@science
The first space tourists to perform a spacewalk have successfully returned to Earth. The Polaris Dawn mission participants’ capsule splashed down in the Gulf of Mexico.
SpaceX’s Crew Dragon spacecraft launched from Cape Canaveral on Tuesday, reaching an altitude of 700 km above the Pacific Ocean. Billionaire Jared Isaacman and SpaceX engineer Sarah Gillis each took turns exiting the spacecraft through the hatch for their historic spacewalk. The entire operation was broadcast live.
@science #SpaceX
Scientists from the Ocean University of China have reconstructed Earth’s plate tectonics over the past 1.8 billion years.
They’ve condensed this vast timeline into an animation just one minute long! The animation showcases the movement of continents over nearly half of our planet’s history.
Around 200 million years ago, when dinosaurs roamed the Earth, Gondwana merged with North America, Europe, and Northern Asia to form the supercontinent Pangaea. Both Pangaea and Gondwana were composed of even older tectonic plates. The reconstruction then reveals the even earlier supercontinent Rodinia, which formed from the ancient supercontinent Nuna around 1.35 billion years ago.
#Science #Geology #PlateTectonics
A clear illustration: how the brain heals the heart. Essentially, this image represents a prototype of a new kind of medicine.
We see the hearts of mice 15 days after a heart attack. The ones on the right are significantly better preserved — they have more cardiac tissue and less fibrotic tissue. What’s the reason? The mice on the right had daily stimulation of a specific brain area: dopamine neurons in the ventral tegmental area (VTA). This reduced inflammation and enhanced healing in the heart. It also affected the liver, which began producing more of a protein that helps form new blood vessels in the damaged heart tissue. No direct treatment was applied to the heart itself; only brain cells were activated.
🔗 Article in Nature Cardiovascular Research
Of course, mice are not humans, and it’s important to remember this. However, there is reason for optimism, as this approach doesn’t depend on the differences in molecules, genes, and so on.
@science
Scrollin’ through your feed, look what’s next to see,
A world of knowledge, it’s waiting here for free.
AI is risin’, tech is in the air,
Let’s break it down, let’s learn, we’ll take you anywhere!
From the stars above, to the microchip inside,
The future’s callin’, come along for the ride.
Knowledge is power, it’s time to light the flame,
Tell your friends, spread the word, they’ll never be the same.
#Science in the air, can you feel it now?
We’re changin’ the world, let’s show ‘em how.
Subscribe, share, let it flow,
The more you know, the further you’ll go!
Science in the air, tell everyone you see,
The future’s bright, and it’s all for you and me!
AI’s evolving, solving mysteries untold,
Technology’s a key, and the future we’ll behold.
Every time you share, you’re sparking a new light,
One click away from makin’ someone’s mind take flight!
From the code we write, to the stars above,
Let’s build the future with knowledge and love.
Together we’re strong, now’s the time to unite,
Share the channel, we’ll all take flight!
@Science in the air, can you feel it now?
We’re changin’ the world, let’s show ‘em how.
Subscribe, share, let it flow,
The more you know, the further you’ll go!
Science in the air, tell everyone you see,
The future’s bright, and it’s all for you and me!
Join the wave of change, it’s happening here,
With AI and science, there’s nothin’ to fear.
So hit that share, pass the knowledge along,
Together we’ll rise, it’s where we belong.
Science in the air, can you feel it now?
We’re changin’ the world, let’s show ‘em how.
Subscribe, share, let it flow,
The more you know, the further you’ll go!
Science in the air, tell everyone you see,
The future’s bright, and it’s all for you and me!
Yeah, science in the air, come join the ride,
With knowledge and tech, let’s take it worldwide.
Read, share, grow, and dream,
Together we’ll create the ultimate team!
@science
Scientists have made progress in uniting general relativity and quantum physics, two theories that traditionally clash. A new approach considers gravity as an "emergent" phenomenon, arising from quantum interactions rather than a fundamental force. This breakthrough could potentially lead to a unified theory of quantum gravity, bridging the gap between our understanding of the cosmos at both massive and tiny scales.
For more details, you can read the full article here
Termites of the species *Neocapritermes taracua* from French Guiana have a unique defense mechanism where they "explode" to protect their colony. These termites carry toxic "backpacks" containing the BP76 enzyme, which remains in a stable form until mixed with secretions during a threat. The enzyme's copper-based structure and sugar molecules keep it stable until needed. Once triggered, the explosive reaction releases a deadly toxin, immobilizing or killing attackers, though the termite itself perishes in the process.
#science
BMW, in collaboration with Aeromine Technologies, is testing bladeless wind generators on rooftops to improve sustainability at its facilities globally. These systems use an aerodynamic design that captures and amplifies airflow from building rooftops. The first "stationary" wind energy system in the UK has been installed at BMW’s Oxford plant, marking a significant step in eco-friendly energy solutions for industrial use.
@science -#tech
Take care of your pelicans over there 😅
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❤️ Thanks everyone for your support and love!
Last month I got interviewed by police for 4 days after arriving in Paris. I was told I may be personally responsible for other people’s illegal use of Telegram, because the French authorities didn’t receive responses from Telegram.
This was surprising for several reasons:
1. Telegram has an official representative in the EU that accepts and replies to EU requests. Its email address has been publicly available for anyone in the EU who googles “Telegram EU address for law enforcement”.
2. The French authorities had numerous ways to reach me to request assistance. As a French citizen, I was a frequent guest at the French consulate in Dubai. A while ago, when asked, I personally helped them establish a hotline with Telegram to deal with the threat of terrorism in France.
3. If a country is unhappy with an internet service, the established practice is to start a legal action against the service itself. Using laws from the pre-smartphone era to charge a CEO with crimes committed by third parties on the platform he manages is a misguided approach. Building technology is hard enough as it is. No innovator will ever build new tools if they know they can be personally held responsible for potential abuse of those tools.
Establishing the right balance between privacy and security is not easy. You have to reconcile privacy laws with law enforcement requirements, and local laws with EU laws. You have to take into account technological limitations. As a platform, you want your processes to be consistent globally, while also ensuring they are not abused in countries with weak rule of law. We’ve been committed to engaging with regulators to find the right balance. Yes, we stand by our principles: our experience is shaped by our mission to protect our users in authoritarian regimes. But we’ve always been open to dialogue.
Sometimes we can’t agree with a country’s regulator on the right balance between privacy and security. In those cases, we are ready to leave that country. We've done it many times. When Russia demanded we hand over “encryption keys” to enable surveillance, we refused — and Telegram got banned in Russia. When Iran demanded we block channels of peaceful protesters, we refused — and Telegram got banned in Iran. We are prepared to leave markets that aren’t compatible with our principles, because we are not doing this for money. We are driven by the intention to bring good and defend the basic rights of people, particularly in places where these rights are violated.
All of that does not mean Telegram is perfect. Even the fact that authorities could be confused by where to send requests is something that we should improve. But the claims in some media that Telegram is some sort of anarchic paradise are absolutely untrue. We take down millions of harmful posts and channels every day. We publish daily transparency reports (like this or this ). We have direct hotlines with NGOs to process urgent moderation requests faster.
However, we hear voices saying that it’s not enough. Telegram’s abrupt increase in user count to 950M caused growing pains that made it easier for criminals to abuse our platform. That’s why I made it my personal goal to ensure we significantly improve things in this regard. We’ve already started that process internally, and I will share more details on our progress with you very soon.
I hope that the events of August will result in making Telegram — and the social networking industry as a whole — safer and stronger. Thanks again for your love and memes 🙏
On September 4, the meteoroid 2024 RW1, approximately 1.5-1.6 meters in diameter, entered Earth's atmosphere and burned up over the Philippines, creating a spectacular "shooting star" effect as it disintegrated.
🔭 @science #space #meteorite
Since August 28, 2024, the Global Consciousness Project (GCP) graph has exceeded its usual measurement range and has been reaching record highs, indicating an exceptionally strong concentration of events. Such spikes have only been observed after 9/11, but unlike the current state of the GCP graph, the 9/11 event showed a massive one-day increase followed by a decline.
This current rise is ongoing, and since the event that could explain it has not yet occurred, it’s reasonable to assume that the graph will continue to rise and has not yet reached its peak.
So, if you’ve been doomscrolling lately, it’s understandable—well, not ideal, of course, but the graph certainly justifies it.
@science
On August 21st, the Moon passed in front of Saturn in a rare event known as occultation. This stunning composite image, created from multiple shots by Josh Dury, captures the momentous event as the Moon gradually covered and then revealed the ringed planet. The alignment offered a spectacular view for observers, showcasing the dynamic interactions between celestial bodies.
#Astronomy #Saturn #Moon #Occultation #science
Diatom algae under a microscope reveal their unique silica-based "shells," giving them a distinctive appearance. These algae are primarily unicellular, though some can form colonies. Their intricate and beautiful silica structures play a vital role in their survival and are a fascinating subject of study in microbiology.
#science
Physicists have used chaos theory to describe the behavior of bowhead whales, revealing that these mammals act as chaotic oscillators. They discovered that some whales synchronize their behavior over distances of up to hundreds of kilometers. Specifically, in the Disko Bay area of Greenland, whales exhibited episodic behavioral synchronization over distances ranging from 5 to 352 km. This synchronization persisted even when the distance between the whales exceeded 130 km, beyond the range of acoustic communication, highlighting an intriguing aspect of whale behavior.
@science
A group of scientists from China analyzed the composition of soil samples brought back from the far side of the Moon, according to China Central Television.
The lunar soil samples delivered by the “Chang’e-6” mission primarily consist of basalt, breccia, cementite, light-colored rocks, and glassy material. Basalt fragments make up 30% to 40% of the total sample volume. The minerals are mainly pyroxene, plagioclase, and ilmenite, with very little olivine present.
The mineralogical analysis revealed that the primary phase composition of the lunar soil samples is as follows: plagioclase (32.6%), pyroxene (33.3%), and glass (29.4%), with the glass content near the lower limit of samples retrieved during the Apollo missions.
Meet Henry, the oldest and largest Nile crocodile in the world kept in captivity. At 122 years old and measuring 5 meters in length, Henry resides in South Africa.
He has fathered 10,000 offspring and weighs nearly a ton!
#CheckThisOut #Wildlife #Crocodiles
🌌 Did you know?
A single teaspoon of a neutron star would weigh around six billion tons on Earth! Neutron stars are incredibly dense remnants of supernova explosions, packing more mass than our Sun into a sphere only about 20 kilometers across.
#science #astronomy #DidYouKnow
Symphonic Labs has developed a new Mac app that allows users to silently mouth words, and the app translates the movements into text. It currently works only with English and is an exciting tool for privacy-conscious users or even for spies, as it enables nearly silent speech recognition. The app reads lip movements and converts them into written text without the need for actual vocalization.
For more details, visit Symphonic Labs
Scientists in the U.S. have made biological tissues of live mice transparent using a solution of the dye tartrazine, which absorbs light. The dye was applied to the shaved scalp of the mouse, allowing researchers to visualize brain blood vessels with laser speckle contrast imaging. The solution also made the mouse's abdomen transparent, enabling direct observation of internal organs like the liver, intestines, and bladder. Remarkably, the effect is reversible by simply washing off the solution with water.
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Well, it's Monday... guess I'd better go for a walk
😀
“Economics” is the science that studies how societies allocate their limited resources to satisfy their unlimited wants and needs.
In economics, specifically when discussing investments, if you had invested $100 in Intel stock 27 years ago, today you would still have just $100.
😅
#science #economics
Boeing's Starliner spacecraft, after spending three months in orbit instead of the planned week, has undocked from the ISS in unmanned mode due to engine issues and helium leaks. The Starliner will return cargo and waste to Earth within six hours. Meanwhile, its crew remains on the ISS until February and will be rescued by SpaceX.
@science
The BepiColombo spacecraft, a joint mission by ESA and JAXA, has captured the clearest images of Mercury to date, from just 165 km above its surface. Though the camera is monochrome and designed for navigation rather than high-quality images, it provided detailed views of the planet's southern hemisphere, including the 210 km-wide Vivaldi crater with its inner mountain ring. This marks the fourth of six flybys, with the mission set to enter Mercury's orbit in November 2026 for more in-depth exploration.
@science
A Lichtenberg figure refers to the intricate, branching patterns that form on the surface of insulating materials, such as wood or acrylic, after a sliding spark discharge. The intense pressure and heat in the spark channels during a high-voltage discharge deform the dielectric surface, leaving behind these distinctive patterns.
@science
Old books yellow and develop a distinct smell due to the presence of lignin, a compound in wood used to make paper. Lignin, which gives paper its yellow hue, breaks down over time, releasing compounds like benzaldehyde (smelling like bitter almonds) and furfural (with a scent of rye bread). Modern paper production removes much of the lignin, which is why newer books don’t yellow or produce the same smells as older ones. Earlier production methods couldn't remove lignin as effectively.
#science #books
An engineer from San Francisco conducted an intriguing experiment and discovered that Claude may exhibit signs of self-awareness.
The experimenter asked the model to draw a self-portrait, as well as portraits of ChatGPT and Gemini. Then, he showed these drawings to another version of Claude and asked it to identify the self-portrait. Surprisingly, the model recognized itself. This experiment was repeated several times, and in the end, Claude correctly identified its own portrait in 7 out of 8 instances!
But that’s not the entire story. The engineer also asked ChatGPT to create similar portraits and then showed them to Claude, falsely claiming that they were once again drawn by another instance of Claude. The model unexpectedly responded, “No, I didn’t draw this.” 😅
@science #AI
1X has introduced the NEO, the most realistic humanoid robot designed for household tasks. With just 4 hours of charging, NEO can unload groceries, wash dishes, prepare dinner, and even clean up afterward. There are no limitations—NEO will perform any task you request. In case of any malfunction, a backup operator is ready to take control. It seems the predictions from
#Robot #AI #science
A bird's-eye view of hell: The Sundhnukur volcano in Iceland continues to erupt, and a pilot captured the scene from the cockpit of a passing plane. The images show the dramatic and awe-inspiring landscape, with rivers of lava and clouds of ash painting a vivid picture of nature's raw power. This ongoing eruption provides a rare and stunning spectacle for those fortunate enough to witness it from above.
#science #volcano
Check out this stunning image of a triangular solar prominence captured by Andrea Vanoni on August 26, 2024. Solar prominences like this one are large, bright features extending outward from the Sun's surface, often forming spectacular shapes as they interact with the solar magnetic field. This particular prominence's unique triangular form makes it an especially fascinating sight.
📷 Andrea Vanoni, 26 August 2024
@science #sun #solar