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Sierra Space's VORTEX VRM1500-H uses hypergolic propellants, which have long-term storability in space and spontaneously ignite upon mixing, thereby improving reliability and removing the complexity of a traditional ignition system. Video:

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Sierra Space

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18,635 просмотров • 3 лет назад •via X (Twitter)

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Russian scientists breakthrough in safer rocket design with model that predicts when space fuel ignites The new mathematical model calculates ignition delay time with high accuracy (within 10–15% error) for hypergolic fuels — propellants that ignite on contact without a spark or heat 🔸The model accounts for heat exchange, evaporation, vapor mixing, and chemical reactions — both in liquid and gas phases 🔸Ignition timing depends on droplet size and temperature; the model accurately predicts both 🔸Larger droplets evaporate faster, but beyond a certain size (about 3 mm), ignition delay time stops changing 🔸The technology allows real-time monitoring of temperature and mixture composition during ignition
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Russian scientists breakthrough in safer rocket design with model that predicts when space fuel ignites The new mathematical model calculates ignition delay time with high accuracy (within 10–15% error) for hypergolic fuels — propellants that ignite on contact without a spark or heat 🔸The model accounts for heat exchange, evaporation, vapor mixing, and chemical reactions — both in liquid and gas phases 🔸Ignition timing depends on droplet size and temperature; the model accurately predicts both 🔸Larger droplets evaporate faster, but beyond a certain size (about 3 mm), ignition delay time stops changing 🔸The technology allows real-time monitoring of temperature and mixture composition during ignition

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The morphing system would do a lot of heavy lifting in that regard - also the mixing and matching of eyes/eyebrows/mouths/etc. 🤝 (P.S. - In Blender I don't have a shader which can do point filtering, but yeah, just for context)
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The morphing system would do a lot of heavy lifting in that regard - also the mixing and matching of eyes/eyebrows/mouths/etc. 🤝 (P.S. - In Blender I don't have a shader which can do point filtering, but yeah, just for context)

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IGNITE has arrived, and BENQI is proud to be working with a strong and diverse network of builders that have chosen our protocol to accelerate their Web3 ambitions.🫡 Hubble Exchange 🔭 uses IGNITE to validate Hubblenet; a hyper-performant Layer 1 Blockchain that uniquely integrates a fully Decentralized Limit Order Book and Matching Engine, ideal for perpetuals trading. A strong recent addition to the #Avalanche ecosystem, we're thrilled to have Hubble Exchange under the IGNITE umbrella.🥂🔺 Interested in launching your own validator? Visit and light your own fire.🔥
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IGNITE has arrived, and BENQI is proud to be working with a strong and diverse network of builders that have chosen our protocol to accelerate their Web3 ambitions.🫡 Hubble Exchange 🔭 uses IGNITE to validate Hubblenet; a hyper-performant Layer 1 Blockchain that uniquely integrates a fully Decentralized Limit Order Book and Matching Engine, ideal for perpetuals trading. A strong recent addition to the #Avalanche ecosystem, we're thrilled to have Hubble Exchange under the IGNITE umbrella.🥂🔺 Interested in launching your own validator? Visit and light your own fire.🔥

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🚀New paper out - We present Video-MSG (Multimodal Sketch Guidance), a novel planning-based training-free guidance method for T2V models, improving control of spatial layout and object trajectories. 🔧 Key idea: • Generate a Video Sketch — a spatio-temporal plan with background, foreground, and motion in the pixel space. • Encode this structure directly into the latent space of the diffusion model during generation, which does not require fine-tuning or additional memory during inference. 🧵
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🚀New paper out - We present Video-MSG (Multimodal Sketch Guidance), a novel planning-based training-free guidance method for T2V models, improving control of spatial layout and object trajectories. 🔧 Key idea: • Generate a Video Sketch — a spatio-temporal plan with background, foreground, and motion in the pixel space. • Encode this structure directly into the latent space of the diffusion model during generation, which does not require fine-tuning or additional memory during inference. 🧵

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🔥THOUSANDS UPON THOUSANDS of renters in the streets today, united in our fight against a housing system run for private profit. We have had enough of the exploitation and we are fighting back! Rent controls now! Council homes, not luxury flats!
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🔥THOUSANDS UPON THOUSANDS of renters in the streets today, united in our fight against a housing system run for private profit. We have had enough of the exploitation and we are fighting back! Rent controls now! Council homes, not luxury flats!

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This video shows a static fire test of the Archimedes rocket engine, developed by Rocket Lab. Archimedes uses liquid methane (LCH.) as fuel and liquid oxygen (LOX) as the oxidizer, a combination known as methalox. During combustion, these cryogenic propellants produce extremely high temperatures (over 3,000°C), hotter than lava. To survive this, the engine circulates cold fuel through its walls before burning it, a technique called regenerative cooling. Multiple Archimedes engines will power Rocket Lab's upcoming Neutron rocket, which is being built to launch satellites and cargo to orbit with lower cost and higher reliability. Rocket Lab is best known for its Electron rocket and is now expanding into larger, reusable launch vehicles with Neutron.
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This video shows a static fire test of the Archimedes rocket engine, developed by Rocket Lab. Archimedes uses liquid methane (LCH.) as fuel and liquid oxygen (LOX) as the oxidizer, a combination known as methalox. During combustion, these cryogenic propellants produce extremely high temperatures (over 3,000°C), hotter than lava. To survive this, the engine circulates cold fuel through its walls before burning it, a technique called regenerative cooling. Multiple Archimedes engines will power Rocket Lab's upcoming Neutron rocket, which is being built to launch satellites and cargo to orbit with lower cost and higher reliability. Rocket Lab is best known for its Electron rocket and is now expanding into larger, reusable launch vehicles with Neutron.

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“We’re coming upon a time in the next 6-18 months where we have to declare which of our youngest players can make material contributions to our eventual contention and which will make their most meaningful contributions somewhere else.”
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“We’re coming upon a time in the next 6-18 months where we have to declare which of our youngest players can make material contributions to our eventual contention and which will make their most meaningful contributions somewhere else.”

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U.S. company Mara has presented its Spike counter-drone system, designed to defend against FPV drones. The system consists of two main components: the Spotter detection module, which uses visual and acoustic sensors to identify incoming drones, and the Seeker interceptor UAV. The Seeker reportedly has a maximum speed of up to 200 km/h (124 mph) and an operational range of approximately 1.5 km (0.9 miles). Mara estimates the complete Spike system will cost between $30,000 and $100,000, depending on the number of Seeker interceptors included. A single system can reportedly accommodate up to 48 interceptors. The company says the interceptor itself is intended to cost approximately the same as its target, or up to twice as much. A stationary version of Spike is planned for late 2026, while vehicle-mounted and portable versions using manual launch are expected in 2027. The system reportedly underwent testing in Ukraine in July 2026. #USA #Mara #Spike #CounterUAS #CounterDrone #FPV #Drones #DroneWarfare #Interceptor #MilitaryTechnology #Defense
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U.S. company Mara has presented its Spike counter-drone system, designed to defend against FPV drones. The system consists of two main components: the Spotter detection module, which uses visual and acoustic sensors to identify incoming drones, and the Seeker interceptor UAV. The Seeker reportedly has a maximum speed of up to 200 km/h (124 mph) and an operational range of approximately 1.5 km (0.9 miles). Mara estimates the complete Spike system will cost between $30,000 and $100,000, depending on the number of Seeker interceptors included. A single system can reportedly accommodate up to 48 interceptors. The company says the interceptor itself is intended to cost approximately the same as its target, or up to twice as much. A stationary version of Spike is planned for late 2026, while vehicle-mounted and portable versions using manual launch are expected in 2027. The system reportedly underwent testing in Ukraine in July 2026. #USA #Mara #Spike #CounterUAS #CounterDrone #FPV #Drones #DroneWarfare #Interceptor #MilitaryTechnology #Defense

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Watch the flawless launch sequence of SpaceX’s Starship, showcasing one of the most advanced engineering feats in modern rocketry. Notice the hot staging sequence, where the upper-stage Starship ignites its Raptor engines before separating from the Super Heavy booster. This method reduces gravity losses and improves overall flight performance, although it requires additional shielding and adds some complexity and weight to the booster. Also pay close attention to the engine startup sequence: the outer Raptor engines ignite first, followed by the center engines, ensuring a smooth, stable, and efficient ascent into space.

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Another explanation for Oumuamua's unusual shape has been proposed The asteroid Oumuamua, which flew through the Solar System in 2017, amazed scientists with its unprecedentedly elongated shape. It is 230 meters long and about 35 meters wide. Astronomers have never seen such objects before and tried to explain its origin. Oumuamua is the first known object to arrive from interstellar space. Its trajectory and speed left no doubt that it does not belong to the Solar System. The object rotated around its axis, changing its brightness, which made it possible to determine its size.

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🇷🇺 Andrey Bezrukov, advisor to the CEO of Rosneft, Igor Sechin, stated yesterday at the St. Petersburg International Economic Forum (which itself came under Ukrainian attack) that Russia will remain in a state of war for the next “two decades”. According to him, Russia must learn to live under wartime conditions, and its state system and economy must be restructured not only for development but also around defense. He also noted that two “wartime generations” will be formed in Russia and admitted that Ukrainian drone strikes, which now reach any region of the country, have become a serious problem for which Russia was unprepared. This is a very frank and long-term assessment coming from a senior figure within the Russian establishment. The admission that Russia is preparing for decades of war, along with the recognition of the serious threat posed by Ukrainian drones, reflects the growing realism (and concern) even among those close to the Kremlin’s power structures. Video is generated by grok AI

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The term Armageddon literally means a hill upon which layers of ancient civilizations lie on top of one another, spanning over 9,000 years. The hill is in Israel, and its name is Har Megiddo, hence Armageddon. The hidden message is the Geophysical Event that resets civilizations. The entire Book of Revelation is about this ulcoming event.
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The term Armageddon literally means a hill upon which layers of ancient civilizations lie on top of one another, spanning over 9,000 years. The hill is in Israel, and its name is Har Megiddo, hence Armageddon. The hidden message is the Geophysical Event that resets civilizations. The entire Book of Revelation is about this ulcoming event.

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Today is a special day for me. I’m making a long-term investment in Otherside and acquiring over 5,000 Otherdeeds, Mega Kodas and Weapon Kodas direct from Yuga Labs to continue building my collection. I have also committed to making a series of acquisitions on the open market this year. I have recently seen Yuga refocus and prioritize Othersidemeta. There is a lot riding on this project for the whole space and I will do my best to help make it a success for everyone. 🙏

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Today, our long-range sanctions once again worked to limit Russia’s oil revenues, which it uses to finance the war and the killing of Ukrainians. Ukraine’s Defense Forces struck the aggressor’s facilities more than 1,300 kilometers from the front line. The Bashneft-Novoil refinery was hit in Bashkortostan. In the Yaroslavl region, nearly 700 kilometers from our border, the Slavneft-YANOS refinery was hit. Our responses to Russian aggression in the Black Sea were also successful. In particular, two military patrol boats and shadow fleet vessels were struck. I thank all the warriors of the Defense Forces who are systematically expanding our long-range capabilities and thereby increasing the chances for diplomacy. Russia must choose peace.

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I always wanted Senne Lammens. A young promising goalkeeper who represents brilliant long term value in the transfer market. We wanted him all along, we’ve agreed a very fair fee and this is the type of business Manchester United have been starved of for far too long, and is proof that our recruitment and operations strategy is actually changing. A very nice signing. 🙌

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25% of the US adult population controls more than 50% of the wealth, all of which will be passed down to Millennials and Gen Z - Generations that not only have a much better understanding of crypto and blockchain technology but are also significantly more inclined to invest in the space.

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