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🚨 MIT JUST DISCOVERED HOW INJECTING CO₂ ACTUALLY REWIRES CEMENT CHEMISTRY FROM THE INSIDE. For years, companies have been injecting carbon dioxide into concrete to store emissions and speed up strength gain. But no one fully understood why it worked until now. Using real-time Raman spectroscopy, MIT researchers captured...

62,589 views • 3 months ago •via X (Twitter)

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Apparently, I saw this video online and I decided to share. What this worker is applying is called bitumen, or what many of us know as bituminous coating. Most people think a wall is a solid, impenetrable block, but in reality, it is more like a sponge. Concrete and blocks have microscopic pores that pull water from the earth through a process we call capillary action. This thick black substance is the shield that stops that water from climbing up into the house. It is not about making the wall look good because this part will be buried under the dirt forever. It is about creating a skin that water cannot breathe through. When do you need to do this? The need for this arises because the soil is a very aggressive environment. Water is not your only enemy.. The ground also contains salts and sulfates that want to eat away at the cement. If this moisture finds its way to the steel bars inside the columns, those bars will start to rust. And when steel rusts, it expands, and that expansion is what cracks the concrete from the inside out. This coating is the only thing standing between your foundation and that kind of slow destruction. Thats is why if you see wet patches at the bottom of your walls inside your house, it usually means someone skipped this step or did it poorly during construction. You can apply this anytime you are building parts of a structure that will stay in contact with the ground. It is common in areas where the water table is high or where the soil stays damp for most of the year. This is a one-shot opportunity. Once you backfill the soil, you can never go back to fix it without a lot of expense and a lot of digging. It is about having the foresight to protect the heart of the building while it is still exposed. Please don’t ignore this if you need to. If you ignore it now to save a bit of money, you will be funding the future decay of your own home. I hope this helps.

A.Y.O

75,399 views • 5 months ago

Copepods, could stop climate change 5 gigatons of these 1mm-sized zooplankton called COPEPODS live in all the world’s Oceans. This is equivalent to 17 million 747 jets, and if you laid the jets end to end, they would go around the planet 31 times. The copepods migrate from around 200m below the ocean surface every night to feed on plants (phytoplankton) at the surface. It is the greatest mass migration of animals on the planet, and it happens twice a day. The vertical motion of the copepods moves just about as much water as the moon and the tides. The copepods eat 30 times more carbon than humanity generates from burning fossil fuels, and about 6%, or 3 gigatons, of their dead bodies and poop end up in the world’s largest carbon bank, the Abyss. The Abyss contains 500m to 1000’s of meters thick layer of organic carbon / mineral sludge with an area greater area than dry land on the planet. Yet humanity has wiped out more than 50% of marine plankton productivity over the last 70 years due to chemical and particle pollution. We have also wiped out 50% of Arctic krill, which are just as important. and we are now even contemplating dredging the ocean floor! We would not have had climate change if we had not poisoned and destroyed most of the world’s oceans. By 2045, the destruction will be complete unless we act now to stop the inevitable annihilation of nature and life on Earth. Let’s put things into perspective, in comparison to protecting nature, carbon mitigation, windmills and electric cars are almost a joke. Copepods churn the oceans; Bioclimatic climate change: this report provides what we consider to be the most accurate mechanism for climate disruption, and it’s not(only) carbon dioxide; via Howard Dryden

Thomas Reis

23,651 views • 10 months ago

40 hours of human work. That’s what this humanoid could save every month! A construction company is already testing a Unitree G1 on a real job site, using the robot for site inspections, 360° imaging, data collection and progress monitoring. The robot starts at around $13,500, while the company says its deployment can save roughly 40 hours of work every month. That adds up to around 480 hours a year from a machine that costs a fraction of traditional industrial equipment. The interesting part is that this isn't about replacing an entire construction worker. It's about removing hundreds of repetitive hours from the workflow, including walking inspection routes, documenting progress and collecting information across the site. Humans can then spend their time on decisions and tasks that actually require them. This is where humanoid robots become economically interesting. Construction sites are already designed around human movement, so a robot with two arms, two legs and a human-sized body can potentially work in the same spaces without rebuilding the entire environment. Every additional task it learns turns those same hardware costs into more productive hours. And the economics get even more interesting as prices fall and production scales. A robot that saves 480 hours per year doesn't need to be perfect or replace a full-time employee to justify its existence. It just needs to reliably take over the boring, repetitive work that companies are already paying humans to do. 480 hours saved. Thousands of dollars in hardware. One construction site. This is how humanoids will enter the workforce, not by replacing everyone overnight, but by quietly taking over the hours nobody wants to spend.

Future Memo

18,925 views • 13 days ago

Topic: Science and the Fullness of Life. Quote 1: Rejecting science is easy. Understanding it is hard. Yet only this path leads to fullness of life. Author: Zafar Mirzo. Rejecting science is easy. It requires no effort, no study, and no discomfort. You can simply dismiss it and stay within familiar beliefs. Understanding science, however, is hard work. It demands time, intellectual honesty, and the willingness to change your mind when evidence shows you were wrong. Yet the author insists this harder path is the only one that leads to a full life. Science is not just a collection of facts. It is the most reliable way we have to understand reality, our origins, our world, our possibilities. Embracing it opens the door to wonder, clearer thinking, and better decisions. It frees us from illusion and gives us the tools to solve real problems. A life lived in deliberate ignorance stays small. A life guided by scientific understanding expands. The choice, though difficult, is clear. Quote 2: Science is hard to understand, yet without it there is no fullness of life. Author: Zafar Mirzo. Science is hard to understand. It takes real effort, patience, and the courage to question old beliefs. Many prefer to avoid that struggle. Yet the author is clear: without science, there is no fullness of life. Rejecting it or staying ignorant leaves a person trapped in a smaller, less accurate picture of reality. Understanding it, however difficult, brings clarity, wonder, and the ability to engage with the world as it truly is. A life shaped by scientific knowledge is richer. It sharpens thinking, solves real problems, and deepens appreciation for existence. The path is demanding, but the alternative is a diminished existence, one cut off from truth and possibility. Science may be hard, but it is the only road to a complete and meaningful life.

Zafar Mirzo | Quotes

2,787,481 views • 2 months ago

Dear Pioneers 🌏 We are living in a decisive moment! Pi Network has the potential to become a true revolution in the global financial landscape, but for that to happen, we must act wisely and united. We are millions of Pioneers around the world, driven by the same purpose: to create a decentralized, accessible, and fair financial system for all. The real value of Pi is not determined by the traditional market but by our confidence and engagement. The GCV of $314,159 represents much more than just a number – it symbolizes our conviction about Pi's potential. Our Strength Lies in the Community For Pi to reach its true value, we need to act strategically and with commitment. No great project can sustain itself without the support of its participants. If we want to see Pi shine, we must: ✅ Avoid having our Pi traded on exchanges prematurely, creating scarcity and strengthening its value ✅ Not accept selling it for prices lower than it truly deserves ✅ Acquire and withdraw Pi from exchanges, consolidating its strength in the market ✅ Use it in real transactions, promoting its growth as a global digital currency ✅ Spread awareness and encourage its daily use, expanding its acceptance Each Pioneer plays a crucial role in this process. The more we use and value Pi within the ecosystem, the more it will establish itself as an asset of great global impact. The Future Is in Our Hands We can allow speculators to dictate the value of Pi, or we can take control of our own destiny and ensure that it reaches its true potential. The decision is ours! If we act together, with strategy and determination, nothing can stop us from making Pi Network a milestone in cryptocurrency history. The time is now, and each of us is a fundamental part of this revolution. Let's strengthen Pi together and make the GCV of $314,159 an undeniable reality! Sérgio Cruz, Portugal GCV Ambassador 🇵🇹

Doris Yin 东方紫莲🪷

25,065 views • 1 year ago

Brainrotting teens watching short form memes so much to the point that parts of the fragments of other memes become even more short form and get colluded in other memes to the point that it really doesnt make sense. However. Brain loves pattern recognition of these patterns and nonsensical randomly shown fragments of memes, because it is not long form reward, nor short form reward — but instantaneous; it is the only form of pleasure it can feel So brain tries to look for these patterns unconsciously, it sees patterns and similar resemblance in random things and adds a symbolical emotional labeling of truth to it. So everything becomes a piece of information and data. It gets stored in their subconscious brain and fires up everytime there is a resemblance. Extremely dangerous if weaponised but no one sees the patterns yet. However because of these pattern behaviours teens are split into two categories, the brainrots which God knows how it will end with them — consumers and slaves that later on might have no free will and be driven by pure chemical instinct. And those who see for truth in patterns. The latter is able to overcome modern day censoring and freedom of speech mechanisms, and possibly overcome the evil trying to control the world with pure silliness and having fun. (67 is part of a random pattern that someone said during a match score, and it became viral, nothing more but a collective participation to which youth finds identity by being and acting in it; “performing”) Its beauty lies not in the act but in those individuals that look beyond the chemical instincts of the lower mind. Example of the video below. It shows many fragmental elements of history, symbolism, that is collaged into art. Which by being seen individually or collectively it shows the expression on how man uses its own soul for these kind of co-creations he choses to participate in creation. Symbolism that can leave a person ask for its meaning and search for it, only by questioning himself not by a direct answer (short or long form). Of course which extreme beauty there is also extreme ugliness which are out there which I wont show here Lets see how it really turns out to be honest, West has no protection toward the subjective, the feminine, the subconscious. To which the inner sins of man try to exploit.

Rage ❉

332,451 views • 9 months ago

$OnlyMarms Update for the end of Day 2 🦫 The receipts just keep stacking up. Since yesterday... 📺 The token has now been mentioned LIVE on television for the second time, this time on NBC. ( 🎙️ The story has now reached radio, with its first major interview airing on Radio-Canada. ( 🌐 The M.A.D. Lab has created an official OnlyMarms page on its website, documenting the community initiative and bringing everything together in one place. ( 📰 And more media outlets continue picking up the story by the hour - from major newspapers to university publications and international outlets. Take a step back for a second. $OnlyMarms sends a message and sets a statement: Meme coins can do good, and Meme coins can have real-world impact. It is the first time in a while, that we see positive media reports on a meme coin. This isn't a a simple meme that we have invented, it is actually a real world problem that we got to turn into a Crypto narrative to help the M.A.D Lab with fundraising, and awareness. The Pump.fun community, together against a real-world problem. A wildlife research lab founded in 1962 lost critical government funding after more than 60 years of continuous research. The community built around that mission. Now, every TV appearance, every radio interview, every news article, and every official update from the lab brings more attention - not just to the token, but to the research itself and the main issue: get the Lab their funding back. This is what makes OnlyMarms different. The narrative doesn't depend on price action, this is bigger than that. It evolves every time the world learns about the story. For the first time in a while, we have a narrative that I think can send a message and set a statement: Meme coins can do good, and Meme coins can have real-world impact. It is the first time in a while, that we see positive media reports on a meme coin. 🦫 Official M.A.D. Lab OnlyMarms page: 🌍 Community Website: Community Chat for raids and bagworking: Official Linktree: CA: HBrfYZgeLKdSvBBGnGkvAK4563pq8oBGpgNFAaespump Also we set up an official account where more marmot content will be posted: OnlyMarms

Miggl

106,610 views • 1 month ago

JUST IN: Reimagine Robotics has just emerged from stealth! 🥷🏻 Its approach to robot training is one of the most human-centric I've seen. The founder is Jonathan Scholz, the person who built and led Google DeepMind's Applied Robotics team in London for seven years. This is not a first-time founder taking a swing at robotics. He has spent a decade at the frontier of the field. The philosophy is powerful. He calls it "monkey-see, monkey-do." 🐒 A worker shows the robot what to do. Watches it attempt the task. Corrects it on the spot. The robot learns. No specialist programmers. No months of integration. And it's already working in the real world: → A made-to-order plastics business trained robots to tend 3D printers overnight, removing print beds, operating latches, pressing controls → A hard drive disassembly facility built a three-robot cell combining robots and people to recover critical materials → Time to prototype and test a new robot behaviour reduced from one day to 10 MINUTES That last number is the one that changes everything. When testing a new behaviour takes 10 minutes instead of a day, the entire pace of deployment transforms. Scholz's framing of the human-robot relationship is worth reading carefully: "A robot that learns on the job depends on people. The worker identifies the bottleneck, shows the robot how to help, and corrects it until it is useful." It's August, and we keep getting robotics bangers week in week. ~~ ♻️ Join the weekly robotics newsletter, and never miss any news →

Lukas Ziegler

23,389 views • 1 month ago

A very good morning. Welcome to The Council Benji This marks the third Skull in a little run. The first went to a fund I've never met. The second: through Eli Scheinman to a new collector/foundation who has been quietly entering the space in a very significant way across a number of collections whom I’ve never spoken to. Their new entrance enabled a wedding and start of a new married life for Conviction. In my very first conversation with him, we spoke about curses and commitments to the people we love. Since meeting got to talk through each step on that path, from letting go, what is imbued in the ring and ceremony of it all, a proposal, and on the way to the most important of the steps in pursuit of a blessed life. It is easy to get a little cynical on the over-leveraged exit stories that spring up from time to time, so it is a treat to watch one go towards a celebration that’s been building up in his life since the Skull was first acquired. And now: this. The third Skull and the first I can really write about as a shared story across both source and destination. An exit and an entrance. The exit: The Skulls of Luci were awarded as gifts 4 years ago. But before I'd minted Birth of Luci or painted the other 49, the first person in this space I showed the sketch of The Blueprint Skull to was actually Casey💎, when he was working at SuperRare . Casey was the very first person who onboarded me to NFTs, helping me navigate the early days of whatever it meant to even mint something. I explained the idea of gifting one to each person who bid in my first auctions. Though most of the Skulls went to the bidders, Casey's didn't. He didn't ask for one. I didn't tell him I'd give him one. But he helped me take my first steps here, and it's hard to imagine any of this making sense, or unfolding the way it has, without him. Since then, we've broken bread across continents, seen quite a lot of chortling margarita consumption, watched the rise and fall of a lot around us, weathered inter-Council dramas. He brought Laura El into The Monument Game, played as a Player, wore a Mask. Most of the vibe that started all of this, the wild west of it, feels faded in the broader space at times. But every Skull has a story and a person who helped us get here. Casey will always be the one who was there before any metric muddled the reason to care. The entrance: Last fall, Benji came over for a studio visit. We walked through Luci, the works, structure, and dream, as anyone who visits does. But we mostly talked about being a father and having a father. We discussed the very idea of "collection" stripped of accumulation, value, or signal, located more in the act or ceremony of it. What it was to grow up with a curious father who studied the edges of each thing he saw to know the next layer beneath why anyone might look or ignore it. That to pass this on is to pass on questioning, more than it is to pass on any kind of answer. The process of collecting can be perceived as an individual act of hoarding. For some it is maybe. But at its best, it's a way to bind through shared questioning, to bond in cooperation and competition with friends and family, it is the swapped story and meme of it all, and each object gathered along the way carries some shared memory that can, often does, and with intent: should; drift out of the object entirely. All in the psalm, always has been. The studio visit came and went. Soon after, a package arrived in the mail with two of the softest stuffed animals added to my daughter's own collection, now among her favorites. The Skull is a bonus to that, in the scheme of shared memory. For Rachel and I, while we are heads down making a body of work that unsettles us and excites us but demands unknown time to accomplish, it means a great deal to have this kind of support from long term people in the quiet process of making work we want to leave behind ourselves. Enormously grateful to Casey for the many years of support and friendship, to Benny for being a true patron, and to Benji for entering the arena for what I'm working on next. Welcome.

Sam Spratt

20,786 views • 5 months ago

**Congratulations to Chinese Pioneers Purchasing Cars via Full Pi Payments at GCV** BYD Auto Service Co., Ltd., located in the Yuhua District of Changsha City, Hunan Province, is supporting Pi payments at a GCV rate of $314159 for the exchange of hundreds of cars. Each car was traded for 0.2 Pi, allowing around 40 Chinese Pioneers to drive home today. Congratulations to them! 💪💪💪✌️✌️✌️ Yong Chuang Capital has invested 40 million RMB in these hundreds of cars. The financial backing comes from Gaoling Group, Sequoia Capital, Hongyuan Construction, Poly Group, and Hunan Pi Chain Co., Ltd. I have verified this information with Mr. Li Shao from the Hunan Pi Network Merchants Association. The price of 0.2 Pi covers all related fees. While this amount is slightly above the fair market value (FMV), it is justified because the Pioneers did not need to pay Pi upfront; they simply signed contracts committing to pay after Pi migrated. The capital's willingness to accept full Pi payments at this time, before the official mainnet launch (OM), is driven by the potential for significant profits. The belief that the value of Pi is fixed at $314,159, as noted in the GitHub code, contributes to this perception of minimal risk. This can be called the time value. As long as pioneers have been notified this extra charge, it is a Fair barter for both sides. Although the price is higher than FMV, it addresses the immediate high demand for cars among Pioneers. Time is a critical factor, and Pioneers are willing to pay a premium to acquire their cars as soon as possible. A special thanks to BYD Auto Service Co., Ltd. for their prompt support of the GCV Ecosystem. We also appreciate the backing from the financial supporters of the Pi Network at the GCV rate of $314,159! With just one day remaining until the mainnet launch (OM), I anticipate that more significant commodity merchants will join the Pi Network soon. The Know Your Business (KYB) process for merchants has opened today, which will help address the challenge of merchants not having wallets to receive Pi. This is a priority channel for merchants to complete their KYB and obtain a wallet to connect to the Pi Network Blockchain. Doris Yin 🪷🪷🪷

Doris Yin 东方紫莲🪷

109,955 views • 1 year ago

:Scientists Capture the Birth of Water, Atom by AtomFor the first time ever, researchers have directly observed hydrogen and oxygen atoms combining in real time to form tiny nanoscale bubbles of water—essentially witnessing one of chemistry’s most fundamental reactions at the molecular early 2024, a team from Northwestern University unveiled a groundbreaking imaging technique that traps gas molecules inside tiny, honeycomb-shaped nanoreactors sealed by ultra-thin glassy membranes. This innovation allows scientists to observe chemical processes in real time using high-vacuum transmission electron microscopes, something previously impossible for gaseous reactions.The team, led by Professor Vinayak Dravid and including first author Yukun Liu, turned their attention to a century-old puzzle: how palladium—a rare metallic element—acts as a powerful catalyst to rapidly combine hydrogen and oxygen into water As Yukun Liu explained: “It’s a known phenomenon, but it was never fully understood. You really need both direct visualization of the reaction and atomic-level structural analysis to figure out exactly what’s happening.”What they saw was astonishing.Using their nanoreactor platform, the researchers watched hydrogen atoms diffuse into a palladium nanocube, causing its crystal lattice to expand slightly. Then, when oxygen was introduced, the gases reacted at the surface. Suddenly, tiny water bubbles began to nucleate and grow right before their eyes on the palladium surface.“We think it might be the smallest bubble ever formed that has been directly viewed,” said Liu. “It’s not what we were expecting. Luckily, we were recording it—so we could prove to others that we weren’t crazy.” The bubbles were confirmed to be water using electron energy-loss spectroscopy and heating experiments. Remarkably, the reaction occurs efficiently at room temperature, and palladium itself is recyclable—it doesn’t get consumed in the process. The order in which the gases are introduced also plays a key role in the speed of water formation.This direct, atomic-scale observation not only solves a long-standing mystery in catalysis but could also inspire new technologies: from more efficient ways to generate clean water in remote or arid environments to improved hydrogen fuel cells and even systems for producing water in space.What once seemed like “water from thin air” is now literally visible—captured in stunning detail at the nanoscale. This breakthrough highlights how advanced imaging tools are unlocking secrets of matter that have remained hidden for generations.The study was published in the Proceedings of the National Academy of Sciences (PNAS) in 2024.

Black Hole

31,895 views • 5 months ago

Jet Fuel is a fascinating story. We don’t measure it in litres, we measure it in weight, because fuel expands/contracts with temperature while weight stays constant. Jet fuel’s specific gravity is ~0.8, so 1 litre ≈ 0.8 kg (lighter than water). It’s also worth noting that jet fuel is essentially a highly refined kerosene, far less volatile than gasoline, which makes it safer to handle in large quantities. On a long-haul, fuel can be close to half the aircraft’s total weight at departure. On the A350-1000, that can be ~129 tonnes. At most major international airports, this much fuel doesn’t turn up in a tanker. It’s stored in a depot and delivered through a network of underground hydrant pipes to each stand. The “tanker” you see is really a pump truck connecting the hydrant to the aircraft and metering the exact uplift. When I moved from the A340-600 to the A350-1000, one of the things that struck me most was just how much simpler and smarter the fuel system became and how much less fuel we required for the same journeys. On the A340-600, we needed a rear trim tank in the tail to keep the aircraft in balance during cruise. It worked beautifully, but it added complexity. The A350 doesn’t need that, instead, it uses tiny fractions of flap in cruise, together with the latest wing aerodynamics, to keep perfectly in trim. London → New York comparison (typical figures): - A340-600: ~80–90 tonnes of trip fuel - A350-1000: ~50–60 tonnes of trip fuel That’s roughly 30–40% less fuel, saving ~25–30 tonnes on a single flight, which also means about 80–95 tonnes less CO₂ (rule of thumb: 1 tonne of jet fuel ≈ 3.16 tonnes CO₂) 📸 by ig/captainchris

aircraftmaintenancengineer

509,430 views • 1 year ago

Elon Musk gave the entire entertainment industry its expiration date, and he is the one building the thing that kills it. Musk: “My guess is that we see the first compelling half hour, pure AI show next year.” Next year. A complete show generated entirely by AI. No writers. No actors. No cameras. No sets. No crew. No studio. Just a prompt and enough compute to render a reality that never physically existed. And shows are the easy part. Musk: “I say probably we’re maybe three years away from AI does the whole video game.” A show plays the same way every time. A game has to generate a living world that reacts to every decision in real time across every single frame. That is a fundamentally harder class of problem. And Musk put three years on it. Right now a single AAA title takes seven years and half a billion dollars across thousands of engineers and artists just to ship it. Musk is describing a world where one person types a paragraph and gets something comparable. The entire value proposition of a multi-billion dollar industry lives inside that gap. And it closes in thirty-six months. But the prediction is not the story. The person making it is. This is not an analyst speculating from the sidelines. This is the man building the largest AI compute clusters on the planet. The man who built xAI from zero in under two years. The man stacking hundreds of thousands of GPUs into facilities designed to do exactly what he is describing. When Musk says three years, he is not guessing about what someone else might eventually ship. He is reading you a delivery date off his own roadmap. Every media company on Earth is valued on a single assumption. That quality content is expensive and difficult to produce at scale. That one assumption is the structural foundation underneath every studio, every network, and every publisher in existence. Musk is dismantling it with raw compute. The studios still parading thousand-person production teams are not demonstrating strength. They are advertising the exact cost structure that one person with a prompt and a GPU allocation is about to make irrelevant. And it does not stop at entertainment. If AI can generate an interactive world that responds to human input in real time, it can generate anything. Advertising. Architecture. Training simulations. Product design. Every industry built on humans manually constructing visual experiences frame by frame is sitting on the same countdown Musk just read out loud. Now zoom out. Because this is not just an industry story. For the entire history of human civilization, the distance between imagining a world and actually creating one required thousands of people, millions of hours, and billions of dollars. That distance built Hollywood. That distance built the gaming industry. That distance made content scarce and studios powerful. Musk is collapsing that distance to zero. When the gap between imagining something and it existing disappears, every business model built on the difficulty of creation disappears with it. That is not disruption. That is a full inversion of how human beings create. Musk did not make a casual prediction on that podcast. He told you what he is building. He told you the timeline. And he told you which industries do not survive it. The entertainment industry is still debating whether this future is real. Musk is not part of that debate. He is building. And he just told you the delivery date.

Dustin

22,458 views • 2 months ago

When a spacecraft leaves Earth, it doesn’t just fire its engines and head straight to its destination. In many missions, especially those going beyond low Earth orbit, there’s a more subtle and elegant strategy at play, one that uses gravity itself as part of the navigation system. This is often called a gravity assist, or a slingshot maneuver. But in the case of missions like #Artemis II, what’s being used is a closely related idea known as a free-return trajectory. At first glance, it might sound simple: the spacecraft goes to the Moon, loops around it, and comes back. But the physics behind it is anything but simple. Instead of relying on continuous propulsion, the spacecraft follows a carefully calculated path through the gravitational field of the Earth–Moon system. It is launched with just the right speed and direction so that, as it approaches the Moon, the Moon’s gravity bends its trajectory. The spacecraft is effectively flung around the Moon, redirected onto a path that naturally brings it back toward Earth. No major engine burn is needed for the return. Small trajectory corrections may still be required, but gravity does the heavy lifting. That’s the key. This kind of trajectory is not just efficient, it’s also safe. If something goes wrong with the spacecraft’s engines or onboard systems, gravity itself ensures the return. It’s an inherent backup plan, built into the trajectory from the very beginning. The same fundamental idea appears in gravity assists used across the Solar System. When a spacecraft flies past a planet, it can gain or lose speed by exchanging momentum with that planet. From the spacecraft’s point of view, it’s as if it has been accelerated without using fuel. In reality, it has borrowed a tiny amount of orbital energy from the planet itself. That’s how missions like Voyager reached the outer planets, and how probes continue to explore regions far beyond what their onboard fuel alone would allow. But there’s an important distinction. An interplanetary gravity assist is typically used to change speed and direction, often increasing the spacecraft’s energy. A free-return trajectory, like the one used in Artemis II, is designed for something more specific: a path that naturally loops back to Earth without requiring additional propulsion. It’s less about gaining energy, and more about shaping a trajectory that guarantees a return. To understand why this works, it helps to stop thinking in straight lines. In space, motion follows curves defined by gravity. The spacecraft is constantly falling, first toward Earth, then toward the Moon, and then back toward Earth again. What looks like a loop is really a continuous free fall through a changing gravitational landscape. This way of navigating space reveals something deeper. We tend to think of engines as the drivers of motion, but once a spacecraft is on its way, gravity does most of the work. The art of spaceflight is not just about thrust. It’s about knowing when not to use it. #GoodLuck #Artemis NASA Artemis

Erika 

235,124 views • 5 months ago

Hello Hugh Thomas , let’s do it one by one, sample by sample, stone by stone. Whenever an artificial stone recipe of mine reaches a certain stage that’s the results are comparable to the natural version I’ll send a cast sample to you (with its mold) to analyze. The first one could be this perfectly chiseled fake limestone cube. As you can see you can’t fit a razor blade between the stone and the cheap silicone mold from Temu. This proves my micro chiseling skills. The recipe is public, you don’t even need my cube, you could create your own - but you won’t. So I’ll send this cute cube to you. The “secret” recipe is: I started from wood ash lye, also called potash, or K2CO3, by slowly dripping water through hard wood ash. Hard wood ash from your fireplace, yeah. Then I added slaked lime, and the chemical reaction produced fine, molecular level CaCO3 particles, fine limestone floating in the liquid. FYI: the secret chemical reaction is, and was in the ancient times as well: K2CO3 + Ca(OH)2 = CaCO3 + 2KOH Yummy! Next step: I let the limestone particles settle, and poured the KOH, potassium hydroxide solution above (that also formed in the liquid, see above) into the kitchen sink as it is a very good drain cleaner indeed. I added water and poured it into the sink several times, trying to clean the slurry from the KOH. So yes, the cube is from almost pure limestone, CaCO3 - with some residual KOH contamination. The KOH contamination can be reduced infinitely, I just stopped after 4 rounds. (Pro tip: put the slurry into a filter bag and put the bag into a mountain creek for an hour.) The next step is filtering and pressing the remaining liquid from the slurry. Because it’s a wet mess at this point. Pressure is a key factor to success! At least one thing is accurate from the universal canon: no pressure-no stone. How do I know? By trying and failing a few (dozen) times. So I poured the white limestone slurry into a sock 🧦 and pressed and squeezed it by hand - and that was JUST enough pressure for the magic to happen 😮 It looks like nature/god is on our side, everything is working as it was designed this way. Then I put the almost dry limestone paste into this Temu mold. Fun fact: it still contains a lot of water which will eventually be pressed out as the crystallization progresses, so we’ll need to get rid of that water through a hole, a nub. But there is no hole 🕳️ on this Temu mold so I poured the excess liquid from the top a few times. Hardening time=drying time=crystallization time : 1 week. The important lesson I learned from this experience is as follows: I tried to understand why this sludge turned into hard stone, because, as we were told, IT IS IMPOSSIBLE, and my understanding is this: wood ash lye does two different magics in parallel for this to happen: 1. It magically contains the right kind of contamination to facilitate calcite crystal formation and 2. The incredibly high pH (remember, 2 molecules of KOH are produced from 1 molecule of K2CO3!) in the liquid boost the calcite formation even more. ———- My only request from you and your colleagues concerning this analysis is full, 100000% transparency. And be honest. I know something you clearly don’t: you have lost this battle already. We need the data fast, not in 4 years or something. Transparency means sharing whatever you find here on X, without scientific drama and pullbacks. We don’t need a 947 pages scientific paper. We need the results, the data only. BTW: I already know what you will find: a “special type of natural limestone” with some minimal potassium contamination🤣🤣🤣 Now feel free to DM me, let this scientific analysis happen! And thank you for your offer!

Marcell Fóti 🪨

39,910 views • 2 months ago

Today I had my first demo drive in a Tesla. It was also my first time ever sitting in one. This was the first car I’ve ever sat in the driver’s seat of where I didn’t touch the steering wheel for over 20 miles. Before I even got to the car, the people who had demoed it before me were an older married couple who were absolutely euphoric. They thought it was so cool that the car could drive itself. The Tesla employee told me this happens all the time. People come back from demo drives and tell the next test driver that they’re about to have an amazing experience. Little did I know, I’d end up carrying on the torch to the next couple demoing it after me. There was a ton of construction where I demoed the car, and FSD handled the entire drive extremely well. And yes, it can go through a drive-thru and stop at each window. The only thing I had to do was tap the pedal because it wouldn’t leave on its own, but it was still wild seeing the AI stop perfectly at the second window and wait. There are a million things I could write about why a Tesla feels like a better car and how much more it offers compared to a regular car. But for now, I’ll stick to FSD. There were only two moments that made me a little uneasy. The first was pretty minor. The car slightly hesitated going up a driveway, but quickly made up its mind. The second was more noticeable. I didn’t realize the car was nagging me. Once I touched the steering wheel, nothing happened, so I pulled it right a little harder, then let go. After that, the car turned left and crossed a double yellow on a backroad. (and yes I know you can sue the volume knob) I’m not totally sure if it was trying to pull over or what it was doing. I wanted to see how it would handle the situation, but there were cars coming, so I took over and corrected it. One of the coolest moments was when I thought FSD was glitching because it came to a complete stop in the middle of a busy road. Then I looked around and realized why. On the right side, there was a bicyclist waiting at a yellow crosswalk. The cars behind me didn’t honk, and the Tesla stopping actually incentivized another car in the right lane to stop and let him pass. The car is almost too nice to pedestrians, because 99.999% of humans would’ve blown through that, especially with no flashing light. For 99.9% of the drive, the car navigated confidently and smoothly. It was a real “feel the AGI” moment. Please do not let the media, the general public, or anyone else convince you that this technology is just some kind of auto assist or glorified cruise control. This is undoubtedly getting extremely close to feeling superhuman. You still have to pay attention to the road, but after experiencing it myself, I’d be shocked if HW4 Teslas aren’t unsupervised within the next couple years. The car was extremely smooth. There was no harsh braking, and it even avoided something in the road that I didn’t see. Driving with FSD made me realize I probably wasn’t driving as well as I could be. Hopefully, eventually, everyone’s car can be as mindful as a Tesla. I’ve never seen a brand so far removed from the public’s sentiment. I’m so happy I ordered one.

Chris

18,859 views • 2 months ago