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Inside Pratt & Whitney PT6A-67B engine, two turbine systems spin in opposite directions at tens of thousands of rpm, yet they aren't mechanically connected at all. The gas generator spool reaches roughly 37,500 rpm. Its hot gas drives an independent power turbine at nearly 30,000 rpm, producing up to... 1,200 shp. Then there is the gearbox. A compact two stage reduction system has to take that 30,000 rpm input and drop it all the way down to just 1,700 rpm at the propeller, while transmitting roughly 5,000 Nm of torque reliably, flight after flight under all kinds of loads and conditions. All of this happens inside an engines that weighs only about 235 kgs, with interstage turbine temperatures reaching roughly 800°C during takeoff. That combination of extreme speeds, temperatures and mechanical simplicity helped make the PT6 one of the most successful turboprop engines ever built. More than 64,000+ engines have been built and they have accumulated more than 500 million flight hours so far. Whether it is a jet engine or almost any other machine, the really successful designs tend to have one thing in common, the materials, mechanics and overall design work together so well that something incredibly complex ends up looking almost simple. Source, Military Vaultshow more

Ammanichanda

9,769 subscribers

25,903 views • 1 month ago •via X (Twitter)

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12 Comments

Cassidy Waters1 month ago

Indistinguishable from art.

Ticketing Service1 month ago

This is an interesting bit

The Greatest Degeneration1 month ago

More quiet than turboshafts. It is also more resistant to icing / ice ingestion. Much easier to spin up at start (less mass) without a coupled prop shaft. the KA B100 was produced with TPE 331's (labor strike) and it was never as successful as the PT6 despite being more powerful and fuel efficient. The PT6 was more maintainable and tolerant of less than perfect engine management.

spreadoutgoddamit1 month ago

King Air 350's rock.

Outlaw Mike1 month ago

And yet every brain cell of mine screams: this thing can’t work/is badly engineered: *compressor aft, turbines fore: so compressor doesn’t benefit from forward motion plane to thrust air in *power turbines are driven by exhaust gas that has already given away energy to compressor

Jason Lee Thompson1 month ago

It's like two torque converters from automatic transmissions put together...

Rolf Schröder1 month ago

Wouw

Vexl1 month ago

fascinating engineering challenge

‘Jus Sayin1 month ago

That air flow ducting kills me every time.

Frank Brown1 month ago

amazing technology

KAISEN ★ ★1 month ago

@grok En qué se usa esa turbina y cuánta es la vida útil de los motores de los aviones f22 y f16 y qué pieza se remplaza más en ellos, cómo son los rodamientos que soporten esas temperaturas sin lubricación?

tvarad1 month ago

The hot section is in front of the engine so easy to remove or be worked on because it needs to be serviced more often than the air intake/compressor section, I believe.

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A Pratt & Whitney F100 turbofan is one of the most successful fighter jet engines ever built. First run was in 1972, it still powers the F-15 and F-16 more than 50 years later. Over 7,200 engines have been built, collectively logging 32+ million flight hours. At full afterburner, it produces up to 129 kN or 29,000 lb of thrust while burning roughly 800-900 litres of jet fuel every minute. The afterburner, it's a second combustion stage that ignites fuel in the exhaust stream to generate maximum combat thrust. This test cell isn't checking if the engine starts. It's measuring vibration, temperatures, pressures, fuel flow, and thrust while a machine producing 29,000 pounds of force is bolted to the ground. What here looks like a routine engine test is actually one of the most demanding demonstrations of precision engineering in aerospace, Each brand new F100 engine is worth roughly $5-8 million, reflecting five decades of continuous refinement in fighter propulsion. 🎥kaydenh0dge

Ammanichanda

127,116 views • 3 months ago

This is the most powerful commercial jet engine currently flying on an operational airliner. The GE90-115B was built by GE Aerospace specifically for the Boeing 777-300ER. It weighs around 8.3 tonnes, has a 3.25 metre wide fan and produces up to 512 kN (115,000 lbf) of thrust from a single engine. To understand the sheer scale of that output, it produces roughly 2.7 times the thrust of the F135 jet engine powering the F-35, the most powerful fighter engine currently in service. The enormous fan at the front uses just 22 carbon fibre composite blades with titanium leading edges. At maximum thrust, it pulls in roughly 1.4 tonnes of air every second, with nearly 90% bypassing the core rather than passing through the combustor. At around 150 knots during takeoff, its 512 kn of thrust corresponds to roughly 39.5 MW of propulsive power, or in automotive terms around 53,000 hp from one engine. And it burns roughly 4-5 kg of jet fuel every second at maximum power conditions. Two of these engines are enough to power a fully loaded 777-300ER weighing more than 350 tonnes. Even if one engine fails after the critical point during takeoff, the aircraft is certified to continue the takeoff and climb on the remaining one GE90 engine. Each engine costs around $35-40 million. More than 2,500, GE90s engines have been built, and the GE90 family has accumulated nearly 130 million flight hours. And this is precisely why companies like GE Aerospace remain so difficult to displace in jet engines. There is never one breakthrough. GE spent roughly $2+ billion developing the GE90, chasing small gains across hundreds of systems, efficiency, materials, reliability and component life.

This is the most powerful commercial jet engine currently flying on an operational airliner. The GE90-115B was built by GE Aerospace specifically for the Boeing 777-300ER. It weighs around 8.3 tonnes, has a 3.25 metre wide fan and produces up to 512 kN (115,000 lbf) of thrust from a single engine. To understand the sheer scale of that output, it produces roughly 2.7 times the thrust of the F135 jet engine powering the F-35, the most powerful fighter engine currently in service. The enormous fan at the front uses just 22 carbon fibre composite blades with titanium leading edges. At maximum thrust, it pulls in roughly 1.4 tonnes of air every second, with nearly 90% bypassing the core rather than passing through the combustor. At around 150 knots during takeoff, its 512 kn of thrust corresponds to roughly 39.5 MW of propulsive power, or in automotive terms around 53,000 hp from one engine. And it burns roughly 4-5 kg of jet fuel every second at maximum power conditions. Two of these engines are enough to power a fully loaded 777-300ER weighing more than 350 tonnes. Even if one engine fails after the critical point during takeoff, the aircraft is certified to continue the takeoff and climb on the remaining one GE90 engine. Each engine costs around $35-40 million. More than 2,500, GE90s engines have been built, and the GE90 family has accumulated nearly 130 million flight hours. And this is precisely why companies like GE Aerospace remain so difficult to displace in jet engines. There is never one breakthrough. GE spent roughly $2+ billion developing the GE90, chasing small gains across hundreds of systems, efficiency, materials, reliability and component life.

Ammanichanda

53,005 views • 1 month ago

This turbine blade is part of a $250+ million machine that can power an entire city Inside this Mitsubishi Power M501JAC 60 Hz gas turbine is one of the most advanced thermal machines ever built. This single turbine can produce around 440 MW in simple-cycle operation and 600+ MW in combined-cycle mode, enough electricity to power roughly 400,000+ homes continuously 24/7. To achieve this, the turbine compresses incoming air at pressure ratios around 20:1, mixes it with natural gas, and creates a combustion environment exceeding 1,500°C. That extreme temperature is what enables these machines to reach over 60% thermal efficiency. The first-stage turbine blades operate in conditions hotter than the melting point of their own materials. They are built from nickel-based single-crystal superalloys containing elements such as rhenium, tungsten, cobalt and chromium, then protected with ceramic thermal barrier coatings and cooled internally through microscopic channels. At 3,600 RPM, every blade is individually measured, numbered, balanced and tracked. A tiny manufacturing variation in one blade can create destructive vibrations in a machine costing hundreds of millions of dollars and shred the hot section entirely. At full power, this turbine consumes roughly 1,500+ cubic metres of natural gas every minute, around 25 cubic metres every second, while producing enough electricity for hundreds of thousands of homes. The hottest components are not replaced every few days. They are engineered for tens of thousands of operating hours, with major hot-section inspections typically after 20,000-30,000 equivalent operating hours depending on operating conditions. A Gas turbine engine based on technology that has existed for decades has become one of the bottlenecks of the AI revolution. Large gas turbines require years of manufacturing capacity, specialised factories, advanced metallurgy and decades of operational knowledge. Normal lead times are already around 5-6 years for some large units. With AI data centres demanding unprecedented amounts of electricity, ordering some of these machines today can mean waiting until the early 2031s for delivery. The future of AI is not limited only by GPUs and Semi-Conductor Chips. It is also limited by our ability to manufacture giant turbines with blades operating at the edge of material science. Video by 1989alibek

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Ammanichanda

158,621 views • 2 months ago

A modern wind turbine looks deceptively simple from the outside. The largest onshore turbines now use blades stretching beyond 80 metres, sweeping more than 20,000 m² of air. Yet the entire structure rotates at only around 10-20 RPM. Actually, inside the nacelle is a precision gearbox that transforms this slow, high-torque rotation into the 1,000-1,800 RPM required by the generator. This gearbox is one of the most demanding mechanical systems in renewable energy. It continuously transmits megawatts of power, while surviving changing wind loads, vibration and billions of fatigue cycles over a 20-25 year lifespan. Inside are planetary gear stages, precision-ground alloy steel gears, advanced bearings, lubrication systems and cooling circuits. Some of the largest geared turbines contain close to 1000+ liters of specialised synthetic oil to manage lubrication and heat during continuous operation. A single large onshore turbine can cost around $4-5 million, with complete projects costing significantly more after foundations, roads, electrical systems and installation. The goal is for the machine to recover its capital cost within roughly 5-10 years, then continue producing electricity for decades. This is why reliability is the biggest challenge. Gearboxes, bearings, generators and electrical systems remain critical failure points, pushing engineers toward better materials, sensors and predictive maintenance. The scale of this industry is enormous. China has become the world’s largest wind turbine manufacturing and exporting hub, with several Chinese companies among the largest turbine suppliers globally. Building a wind turbine is not just about capturing wind in an efficient manner, It is about creating a machine that can convert wind energy into electricity for millions of hours with minimal human intervention and sustain millions of load cycles.

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Ammanichanda

64,661 views • 2 months ago

$Have a look at one of the greatest examples of industrial engineering art ever created. This is the rotor assembly of the Ansaldo Energia GT36, one of the most advanced heavy-duty gas turbines ever developed. What looks like a collection of polished metal blades is actually the result of 3.7 million hours of engineering, combining decades of research in aerodynamics, combustion, metallurgy, cooling systems and precision manufacturing. A gas turbine works by compressing enormous volumes of air, mixing it with fuel, burning it at extreme temperatures, and extracting energy from the expanding gases through multiple turbine stages. That is why no two blade rows look the same. Across this rotor assembly, the colours, shapes and surface finishes constantly change because each section is solving a different problem. Some blades are designed to move and control massive airflow volumes, while others must survive the most extreme environment inside the machine. The most advanced turbine blades contain microscopic internal cooling channels. The cooling does not come from room-temperature air. Compressed air extracted from the compressor section already heated to 650 degrees Celsius, is redirected through passages inside the blade. It then exits through thousands of tiny holes, creating a thin protective cooling film in real time 24/7 over the surface of the blades while the surrounding combustion gases exceed 1,500°C all while rotating at 3000 RPM. A blade is not surviving because the metal alone can withstand the heat. It survives because engineers created a controlled thermal environment around it. The blades rely on advanced nickel-based superalloys containing elements such as rhenium, tungsten, cobalt and chromium, protected by metallic bond coats and ceramic thermal barrier coatings such as yttria-stabilised zirconia. These coatings are one of the most closely guarded proprietary technologies in turbine manufacturing. Every blade requires precision casting, advanced machining, laser drilling and microscopic inspection. A manufacturing defect measured in fractions of a millimetre can affect a rotor weighing around 150 tonnes and spinning at 3,000 RPM. The complete GT36 turbine system weighs around 520 tonnes and, in its most efficient combined-cycle configuration, can produce approximately 800 MW of electricity at around 64% efficiency enough to supply roughly 500,000+ homes. A complete power plant built around a machine like this can cost around $500-600 million, but the true value is not the steel and turbine machinery. It is the industrial capability and know how required to build a machine designed to operate for 30+ years and more than 100,000 equivalent operating hours, while repeatedly surviving one of the harshest environments humans have ever engineered. This is what the peak of industrial engineering looks like before it starts moving, this is what powers the world. Engineering is Art Video by AnsaldoEnergia$

Have a look at one of the greatest examples of industrial engineering art ever created. This is the rotor assembly of the Ansaldo Energia GT36, one of the most advanced heavy-duty gas turbines ever developed. What looks like a collection of polished metal blades is actually the result of 3.7 million hours of engineering, combining decades of research in aerodynamics, combustion, metallurgy, cooling systems and precision manufacturing. A gas turbine works by compressing enormous volumes of air, mixing it with fuel, burning it at extreme temperatures, and extracting energy from the expanding gases through multiple turbine stages. That is why no two blade rows look the same. Across this rotor assembly, the colours, shapes and surface finishes constantly change because each section is solving a different problem. Some blades are designed to move and control massive airflow volumes, while others must survive the most extreme environment inside the machine. The most advanced turbine blades contain microscopic internal cooling channels. The cooling does not come from room-temperature air. Compressed air extracted from the compressor section already heated to 650 degrees Celsius, is redirected through passages inside the blade. It then exits through thousands of tiny holes, creating a thin protective cooling film in real time 24/7 over the surface of the blades while the surrounding combustion gases exceed 1,500°C all while rotating at 3000 RPM. A blade is not surviving because the metal alone can withstand the heat. It survives because engineers created a controlled thermal environment around it. The blades rely on advanced nickel-based superalloys containing elements such as rhenium, tungsten, cobalt and chromium, protected by metallic bond coats and ceramic thermal barrier coatings such as yttria-stabilised zirconia. These coatings are one of the most closely guarded proprietary technologies in turbine manufacturing. Every blade requires precision casting, advanced machining, laser drilling and microscopic inspection. A manufacturing defect measured in fractions of a millimetre can affect a rotor weighing around 150 tonnes and spinning at 3,000 RPM. The complete GT36 turbine system weighs around 520 tonnes and, in its most efficient combined-cycle configuration, can produce approximately 800 MW of electricity at around 64% efficiency enough to supply roughly 500,000+ homes. A complete power plant built around a machine like this can cost around $500-600 million, but the true value is not the steel and turbine machinery. It is the industrial capability and know how required to build a machine designed to operate for 30+ years and more than 100,000 equivalent operating hours, while repeatedly surviving one of the harshest environments humans have ever engineered. This is what the peak of industrial engineering looks like before it starts moving, this is what powers the world. Engineering is Art Video by AnsaldoEnergia

Ammanichanda

101,294 views • 2 months ago

🚨 JAY LENO JUST PULLED UP IN A CAR THAT RUNS ON PERFUME OR TEQUILA — AND IT SOUNDS LIKE A GIANT VACUUM Jay Leno just rolled up in one of the strangest cars ever built: the 1963 Chrysler Turbine Car, with bodies hand-built by Ghia in Italy. Instead of a normal piston engine, it uses a jet-style turbine. And when it starts up, it doesn’t rumble like a V8. It sounds like a giant vacuum cleaner spooling up. Then Leno shows the part that catches everyone off guard first. He puts a bottle of water on the engine while it’s running… and it barely ripples. Almost no vibration at all while the turbine spins. Then he explains why this car is so bizarre. The engine is designed to run on almost anything that burns: • Diesel • Kerosene • Jet fuel • Heating oil • Cooking oil Leno says when Chrysler took the car to Mexico, they ran it on tequila. When they brought it to France, they filled the tank with Chanel No.5 perfume. Only 9 of these Chrysler Turbine Cars are believed to still exist today. If your car could run on almost anything that burns... what would you try putting in the tank first?

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HustleBitch

868,355 views • 7 months ago

🚨People watching this think it looks fake… It isn’t. That is a real F-22 Raptor performing an unrestricted climb. This maneuver is something only a handful of aircraft on Earth can do. When the pilot rotates and goes straight up like that, the aircraft is converting pure engine thrust into vertical climb. The reason it can do it comes down to the engines. The F-22 is powered by two Pratt & Whitney F119-PW-100 turbofan engines. Each engine produces about 35,000 pounds of thrust with afterburner. Combined thrust: About 70,000 pounds. Now compare that to the aircraft’s weight. Typical combat weight: ≈ 64,000 pounds That means the Raptor has a thrust-to-weight ratio greater than 1:1. In simple terms… The engines produce more thrust than the aircraft weighs. That allows the jet to accelerate vertically. And it gets even crazier. The engines use two-dimensional thrust-vectoring nozzles, allowing the exhaust to tilt up and down to maintain control even when airflow over the wings is minimal. Top speed ≈ Mach 2.25 (about 1,700 mph) Supercruise ≈ Mach 1.5 without afterburners Service ceiling ≈ 65,000 feet Only about 183 operational F-22s were ever built. Which means when you see a Raptor do this climb… You’re watching one of the most advanced air-dominance fighters ever created. #SilentMajoritySpeaks #AStoneGroove

🚨People watching this think it looks fake… It isn’t. That is a real F-22 Raptor performing an unrestricted climb. This maneuver is something only a handful of aircraft on Earth can do. When the pilot rotates and goes straight up like that, the aircraft is converting pure engine thrust into vertical climb. The reason it can do it comes down to the engines. The F-22 is powered by two Pratt & Whitney F119-PW-100 turbofan engines. Each engine produces about 35,000 pounds of thrust with afterburner. Combined thrust: About 70,000 pounds. Now compare that to the aircraft’s weight. Typical combat weight: ≈ 64,000 pounds That means the Raptor has a thrust-to-weight ratio greater than 1:1. In simple terms… The engines produce more thrust than the aircraft weighs. That allows the jet to accelerate vertically. And it gets even crazier. The engines use two-dimensional thrust-vectoring nozzles, allowing the exhaust to tilt up and down to maintain control even when airflow over the wings is minimal. Top speed ≈ Mach 2.25 (about 1,700 mph) Supercruise ≈ Mach 1.5 without afterburners Service ceiling ≈ 65,000 feet Only about 183 operational F-22s were ever built. Which means when you see a Raptor do this climb… You’re watching one of the most advanced air-dominance fighters ever created. #SilentMajoritySpeaks #AStoneGroove

A Gene Robinson

1,277,729 views • 7 months ago

#WATCH | Air India Plane Crash | Noida, UP: Former Pilot Ehsan Khalid says, "... The Flight Data Recorder, Cockpit Voice Recorder and the ACARS data will tell exactly what may have happened. The visuals show that the aircraft went down while flying. Which means there was no mid-air explosion... The visuals show that the aircraft faced a loss of power... The loss of power can be due to engine malfunction, but it is very unlikely that both engines would lose power simultaneously... It is a very big engine, and it is rare that both engines lose power due to a bird hit in a one-minute duration... The pilot gave a mayday call. This means that the failure was seen in the cockpit... They went airborne while combating that failure... I don't understand why the landing gear was still down... The landing gear is raised as soon as the flight takes off... Since the landing gear was down, it is possible that a loss of engine was detected beforehand... There are many variables, and any speculation would be unjust... The biggest question is why the landing gear was not up. The flight was at a height of 600 feet... Whether it was one problem or multiple problems, no one can say anything yet..."

#WATCH | Air India Plane Crash | Noida, UP: Former Pilot Ehsan Khalid says, "... The Flight Data Recorder, Cockpit Voice Recorder and the ACARS data will tell exactly what may have happened. The visuals show that the aircraft went down while flying. Which means there was no mid-air explosion... The visuals show that the aircraft faced a loss of power... The loss of power can be due to engine malfunction, but it is very unlikely that both engines would lose power simultaneously... It is a very big engine, and it is rare that both engines lose power due to a bird hit in a one-minute duration... The pilot gave a mayday call. This means that the failure was seen in the cockpit... They went airborne while combating that failure... I don't understand why the landing gear was still down... The landing gear is raised as soon as the flight takes off... Since the landing gear was down, it is possible that a loss of engine was detected beforehand... There are many variables, and any speculation would be unjust... The biggest question is why the landing gear was not up. The flight was at a height of 600 feet... Whether it was one problem or multiple problems, no one can say anything yet..."

ANI

529,279 views • 1 year ago

🇺🇸 The 3 fastest firing weapons ever built. The numbers don't feel real. No. 3: The GAU-8 Avenger. Strapped to the nose of the A-10 Warthog. 3,900 RPM of 30mm armor-piercing shells. Its recoil is greater than the thrust of one of the plane's own engines. Built to shred tanks. Terrifyingly good at it. No. 2: The M134 Minigun. Six barrels. 6,000 RPM. Mounted on helicopters, vehicles and anywhere that needs serious firepower instantly. The sound alone is enough to end the conversation. No. 1: Metal Storm. No moving parts. Electronic ignition. 1 million RPM (!!!). 180 rounds fired in 0.01 seconds. It holds the world record, but has never once been used in combat. The company went bankrupt in 2012. China is now building their own version. War was scary enough with rifles, hell even swords. As military tech advances into sci-fi territory, it’s just not even a fair fight. Source: War Spectator YT

🇺🇸 The 3 fastest firing weapons ever built. The numbers don't feel real. No. 3: The GAU-8 Avenger. Strapped to the nose of the A-10 Warthog. 3,900 RPM of 30mm armor-piercing shells. Its recoil is greater than the thrust of one of the plane's own engines. Built to shred tanks. Terrifyingly good at it. No. 2: The M134 Minigun. Six barrels. 6,000 RPM. Mounted on helicopters, vehicles and anywhere that needs serious firepower instantly. The sound alone is enough to end the conversation. No. 1: Metal Storm. No moving parts. Electronic ignition. 1 million RPM (!!!). 180 rounds fired in 0.01 seconds. It holds the world record, but has never once been used in combat. The company went bankrupt in 2012. China is now building their own version. War was scary enough with rifles, hell even swords. As military tech advances into sci-fi territory, it’s just not even a fair fight. Source: War Spectator YT

Mario Nawfal

70,602 views • 6 months ago

AOC: I think there's two things that are happening at once: One, there absolutely is an unprecedented abuse of power, destruction of norms, erosion of our government and our democracy in order to prop up an authoritarian style of governance However, they are weaker than they look, and it is important that we remember that because what they rely on is the impression of power, the perception of inevitability in us giving up in advance Donald Trump is at record levels of unpopularity in his tenure. The Republican house is at record levels of unpopularity. They are underwater across the board and they know it. And that is causing them to double down in public. But it is backfiring. That is why whether it's a shutdown, whether it's all of this, they want us to blink first and we have too much to save.

AOC: I think there's two things that are happening at once: One, there absolutely is an unprecedented abuse of power, destruction of norms, erosion of our government and our democracy in order to prop up an authoritarian style of governance However, they are weaker than they look, and it is important that we remember that because what they rely on is the impression of power, the perception of inevitability in us giving up in advance Donald Trump is at record levels of unpopularity in his tenure. The Republican house is at record levels of unpopularity. They are underwater across the board and they know it. And that is causing them to double down in public. But it is backfiring. That is why whether it's a shutdown, whether it's all of this, they want us to blink first and we have too much to save.

Acyn

1,384,344 views • 1 year ago

If you've ever wondered what an #F1 car crossed with a fighter jet would look like, let us introduce you to the #Lotus Pratt & Whitney 56B. Powered by a gas-turbine engine which is capable of revving to 45,000rpm, this car always leaves a lasting impact on those standing course-side at #FOS and while it may not be the most successful grand prix car ever built, its innovative design still played a part in shaping the World Championship we love today. What has been your favourite part of our F1 75 celebrations so far?

If you've ever wondered what an #F1 car crossed with a fighter jet would look like, let us introduce you to the #Lotus Pratt & Whitney 56B. Powered by a gas-turbine engine which is capable of revving to 45,000rpm, this car always leaves a lasting impact on those standing course-side at #FOS and while it may not be the most successful grand prix car ever built, its innovative design still played a part in shaping the World Championship we love today. What has been your favourite part of our F1 75 celebrations so far?

Goodwood Revival

14,732 views • 1 year ago

Zack Polanski, "The problem is chaining yourself to an economic system that is so fundamentally broken" "You don't get marks or points for just being good, a gold star for doing the basics, or even just under the necessary" "We are at this urgent moment in our history where the only thing that is acceptable is what is required" "What is required is to reduce our emissions, to invest in climate adaptation, to protect nature in one of the most nature depleted countries in the world" "And to make sure we're reinvigorating communities with the truth and putting them in charge" "What is the biggest tool we have?" "It is our shared humanity" "Tackling the cost of living crisis is the same solution as tackling the climate crisis" "It's so vital at this budget that we're cutting bills and taxing billionaires" "There's an implication that all of this is transactional, and the only thing people care about is the money in their pockets" "If you're struggling, that probably is the only thing you care about" "But for so many people, they care about the future of this planet. About clean air. Green spaces" "That when people go to work they have a shared sense of purpose, that it is meaningful and that they are contributing something to society" "We are in a crisis. Climate. Equality. Air pollution. Identity. All of these problems are all interlinked" "And it all comes down to our communities and our humanity"

Zack Polanski, "The problem is chaining yourself to an economic system that is so fundamentally broken" "You don't get marks or points for just being good, a gold star for doing the basics, or even just under the necessary" "We are at this urgent moment in our history where the only thing that is acceptable is what is required" "What is required is to reduce our emissions, to invest in climate adaptation, to protect nature in one of the most nature depleted countries in the world" "And to make sure we're reinvigorating communities with the truth and putting them in charge" "What is the biggest tool we have?" "It is our shared humanity" "Tackling the cost of living crisis is the same solution as tackling the climate crisis" "It's so vital at this budget that we're cutting bills and taxing billionaires" "There's an implication that all of this is transactional, and the only thing people care about is the money in their pockets" "If you're struggling, that probably is the only thing you care about" "But for so many people, they care about the future of this planet. About clean air. Green spaces" "That when people go to work they have a shared sense of purpose, that it is meaningful and that they are contributing something to society" "We are in a crisis. Climate. Equality. Air pollution. Identity. All of these problems are all interlinked" "And it all comes down to our communities and our humanity"

Farrukh

205,153 views • 11 months ago

I can tell almost instantly when I meet a young man or woman, whether he or she is a deep thinker. They may not be at the top of their class, but that doesn’t necessarily make them less intelligent than the kid who scored 1500 on his SAT or the guy with an IQ of 134. They may be more intelligent. Much more intelligent, but the methods we have for quantifying that intelligence do not adequately capture the breadth and depth of brilliant minds that exist in the world. So they go unrecognized while the kids who excel on answer-based examinations get the best grades, attend the best schools, earn the best degrees, and, more often than not, go on to have mediocre lives. Why? There is one thing that the most brilliant and accomplished people I have ever met all share in common, and it isn’t pedigree or IQ. It’s curiosity. And not just any curiosity—it’s the inexhaustible kind. It’s the kind that will never be satisfied. In my experience, this is the sort of curiosity that breeds humility and most often coincides with a questions-based mindset. And it’s this type of mindset, not the answers-based mindset our educational system selects for, that is the actual prerequisite for brilliance. I’ve seen this kind of brilliance in physical therapists, plumbers, and pretty much any profession you can imagine that we don’t typically associate with brilliance. But we do associate it with excellence. And that’s because to become excellent at something, you have to become your own teacher. This means going from learning how to give the right answers to learning how to ask the right questions. And that requires curiosity and an almost psychotic commitment to excellence. So, while the person in this video is correct that less intelligent people than he are far more successful than he has been, the more interesting and less remarked upon insight is that people like him are not as brilliant as the system tells us they are.

I can tell almost instantly when I meet a young man or woman, whether he or she is a deep thinker. They may not be at the top of their class, but that doesn’t necessarily make them less intelligent than the kid who scored 1500 on his SAT or the guy with an IQ of 134. They may be more intelligent. Much more intelligent, but the methods we have for quantifying that intelligence do not adequately capture the breadth and depth of brilliant minds that exist in the world. So they go unrecognized while the kids who excel on answer-based examinations get the best grades, attend the best schools, earn the best degrees, and, more often than not, go on to have mediocre lives. Why? There is one thing that the most brilliant and accomplished people I have ever met all share in common, and it isn’t pedigree or IQ. It’s curiosity. And not just any curiosity—it’s the inexhaustible kind. It’s the kind that will never be satisfied. In my experience, this is the sort of curiosity that breeds humility and most often coincides with a questions-based mindset. And it’s this type of mindset, not the answers-based mindset our educational system selects for, that is the actual prerequisite for brilliance. I’ve seen this kind of brilliance in physical therapists, plumbers, and pretty much any profession you can imagine that we don’t typically associate with brilliance. But we do associate it with excellence. And that’s because to become excellent at something, you have to become your own teacher. This means going from learning how to give the right answers to learning how to ask the right questions. And that requires curiosity and an almost psychotic commitment to excellence. So, while the person in this video is correct that less intelligent people than he are far more successful than he has been, the more interesting and less remarked upon insight is that people like him are not as brilliant as the system tells us they are.

Demetri Kofinas

76,390 views • 8 months ago

Elon Musk explains the “series of miracles” xAI had to achieve to bring one gigawatt of power online for its supercomputer cluster in Memphis The xAI team coordinated dozens of gas turbines, faced permit challenges in Tennessee, and ultimately moved the power generation just across the border into Mississippi. From there, they had to run high-voltage transmission lines and build an entire power plant on the Mississippi side and it was very difficult to build that But the deeper point is even more important Most people calculate AI power needs by looking only at the GPUs. That is a serious mistake. A real data center also requires substantial power for networking, CPUs, storage, and most critically cooling In Memphis, where summer temperatures are extreme, peak cooling demand can add roughly 40% more power. On top of that, operators must maintain extra capacity so generators can be taken offline for servicing without shutting down the entire system. This redundancy typically adds another 20 to 25 percent When all of these factors are included, Elon stated that approximately 110,000 GB300 GPUs require roughly 330 megawatts of actual power generation This is why building and powering frontier AI data centers is far more difficult and far more capital intensive than it appears from the outside

Elon Musk explains the “series of miracles” xAI had to achieve to bring one gigawatt of power online for its supercomputer cluster in Memphis The xAI team coordinated dozens of gas turbines, faced permit challenges in Tennessee, and ultimately moved the power generation just across the border into Mississippi. From there, they had to run high-voltage transmission lines and build an entire power plant on the Mississippi side and it was very difficult to build that But the deeper point is even more important Most people calculate AI power needs by looking only at the GPUs. That is a serious mistake. A real data center also requires substantial power for networking, CPUs, storage, and most critically cooling In Memphis, where summer temperatures are extreme, peak cooling demand can add roughly 40% more power. On top of that, operators must maintain extra capacity so generators can be taken offline for servicing without shutting down the entire system. This redundancy typically adds another 20 to 25 percent When all of these factors are included, Elon stated that approximately 110,000 GB300 GPUs require roughly 330 megawatts of actual power generation This is why building and powering frontier AI data centers is far more difficult and far more capital intensive than it appears from the outside

X Freeze

140,636 views • 5 months ago

David Ulevitch on how AI is transforming energy, defense, and logistics: "If you start at the most fundamental level, energy—we have an insatiable thirst for energy in this country, and AI compute is driving a huge amount of it." "AI compute will then power lots of things. It's not just going to power ChatGPT, but it's going to power autonomy systems, all kinds of other language models, and all other kinds of use cases." "If you look at defense, computer vision is transforming the battlefield." "Then you see AI transforming logistics... flight operations and planning using AI, so you can have the most efficient flight planning, save the most amount of fuel, and make sure that the least amount of flights get canceled." David Ulevitch 🇺🇸 on sourcery

David Ulevitch on how AI is transforming energy, defense, and logistics: "If you start at the most fundamental level, energy—we have an insatiable thirst for energy in this country, and AI compute is driving a huge amount of it." "AI compute will then power lots of things. It's not just going to power ChatGPT, but it's going to power autonomy systems, all kinds of other language models, and all other kinds of use cases." "If you look at defense, computer vision is transforming the battlefield." "Then you see AI transforming logistics... flight operations and planning using AI, so you can have the most efficient flight planning, save the most amount of fuel, and make sure that the least amount of flights get canceled." David Ulevitch 🇺🇸 on sourcery

a16z

17,567 views • 8 months ago

One of the most underrated marvels of World War II was the torpedo guidance gyro. A high precision torpedo gyro could spin at 20,000+ RPM, maintain directional stability underwater for miles, survive violent launch loads, and keep a weapon on course using purely mechanical control systems built to tolerances measured in thousandths of an inch. The Mark 14 torpedo that carried these systems cost over $10,000+ per unit in the 1940s. Designed on drafting tables and manufactured with engine lathes, jig borers, and manual milling machines, all without CAD, simulation software, or CNC machining. Without them, the US submarine campaign that crippled Japan's merchant fleet would not have been possible. World War II wasn't just won by ships and aircraft. It was also won by thousands of invisible engineering masterpieces. Video Source:- Inert Ordnance

One of the most underrated marvels of World War II was the torpedo guidance gyro. A high precision torpedo gyro could spin at 20,000+ RPM, maintain directional stability underwater for miles, survive violent launch loads, and keep a weapon on course using purely mechanical control systems built to tolerances measured in thousandths of an inch. The Mark 14 torpedo that carried these systems cost over $10,000+ per unit in the 1940s. Designed on drafting tables and manufactured with engine lathes, jig borers, and manual milling machines, all without CAD, simulation software, or CNC machining. Without them, the US submarine campaign that crippled Japan's merchant fleet would not have been possible. World War II wasn't just won by ships and aircraft. It was also won by thousands of invisible engineering masterpieces. Video Source:- Inert Ordnance

Ammanichanda

90,456 views • 3 months ago

The notion that all new cars suck sort of gets debunked the second the Lexus LFA gets mentioned. One of the only supercars where Lexus did not compensate by making it a hybrid or a twin turbo six cylinder. What Toyota did instead was build an absolute masterpiece, from an engine that is extremely impressive considering it is a V10 that weighs like a V6 and is as compact as a V8, to an exterior package that is truly beautiful for a supercar without going over the top. Seeing this car for the first time at ModaMiami was amazing because of how much it stood apart next to all the fancy Koenigsegg, Czinger 21C, and Bugatti builds, not because it was wilder but because the styling and the lines are truly understated in a beautiful way. The Lexus LFA is powered by a 4.8 liter naturally aspirated V10 developed with Yamaha, producing 552 horsepower and revving to 9,000 rpm so quickly it required a digital tachometer. It accelerates from 0 to 60 mph in around 3.7 seconds, reaches a top speed of 202 mph, and the Nürburgring Package set a 7 minute 14 second lap at the Nordschleife. Only 500 were built, featuring a carbon fiber body and one of the most legendary engine sounds ever put in a production car.

The notion that all new cars suck sort of gets debunked the second the Lexus LFA gets mentioned. One of the only supercars where Lexus did not compensate by making it a hybrid or a twin turbo six cylinder. What Toyota did instead was build an absolute masterpiece, from an engine that is extremely impressive considering it is a V10 that weighs like a V6 and is as compact as a V8, to an exterior package that is truly beautiful for a supercar without going over the top. Seeing this car for the first time at ModaMiami was amazing because of how much it stood apart next to all the fancy Koenigsegg, Czinger 21C, and Bugatti builds, not because it was wilder but because the styling and the lines are truly understated in a beautiful way. The Lexus LFA is powered by a 4.8 liter naturally aspirated V10 developed with Yamaha, producing 552 horsepower and revving to 9,000 rpm so quickly it required a digital tachometer. It accelerates from 0 to 60 mph in around 3.7 seconds, reaches a top speed of 202 mph, and the Nürburgring Package set a 7 minute 14 second lap at the Nordschleife. Only 500 were built, featuring a carbon fiber body and one of the most legendary engine sounds ever put in a production car.

PATINA RESEARCH

59,551 views • 7 months ago