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Porsche Just Invented a 6-Stroke Engine?! How does Porsche's 6-stroke engine work? It adds an extra compression and stroke sequence to squeeze maximum efficiency out of every drop of fuel. Check out the internal planetary gear movement in motion! Brilliant engineering or too many moving parts?

Mechanical Knowledge

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Elon Musk: Raptor 3 is alien technology. “Raptor 3 is a massive increase in payload capability, in engine efficiency, and in reliability. This is really a revolutionary engine. Raptor 3 is really kind of an alien technology rocket engine. Even industry experts, when we showed a picture of the Raptor 3, said, that engine is not complete. Then we said, here's the engine, not complete, firing at a level of efficiency that has never been achieved before. That is one clean engine. In order to make the engine like that, we had to simplify so many parts of the design, incorporate secondary fluid circuits and electronics in the structure of the engine itself so everything is contained and protected. It is a marvel of engineering, frankly.” From: SpaceX Update, May 27, 2025

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Elon Musk on Raptor 3 Engine: "Raptor 3 is designed to require no basic heat shield, saving a lot of mass on the bottom and actually improving reliability, so that if there is, for example, a small fuel leak from the Raptor engine, it will simply leak into the existing flaming plasma and not really matter, whereas a fuel leak when the engines are contained in a box is a very scary thing indeed. It will be a massive increase in payload capability, in engine efficiency and in reliability. So this is really a revolutionary engine. Raptor 3 is really, I'd say, kind of alien technology, rocket engine. So in order to make the engine like that, we had to simplify so many parts of the design, incorporate secondary fluid circuits and electronics in the structure of the engine itself, so everything is contained and protected. It is a marvel of engineering."

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It would have made much more sense if Eloise were a lesbian. But Francesca, with such an important story and stroke of fate that many women can relate to? In the past, women were cast out or unalived because of infertility to this day many who struggle. I can’t understand.

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As the CFM LEAP engine shuts down, you can hear the distinctive “whoosh” sound followed by a gush of air. That is the Reverse Bleed System (RBS) at work. During normal operation, a significant amount of fuel remains unpurged in the system after engine shutdown. This residual fuel, located near or within the hot section, vaporizes due to high temperatures and deposits carbon (coke) on the fuel nozzles. Over time, nozzle coking leads to several operational and maintenance issues, including loss of thrust, reduced engine efficiency due to incomplete combustion, accelerated deterioration of hot-section components (combustor and High-Pressure Turbine), engine start failures, potential engine stalls, and increased unscheduled engine removals. The Reverse Bleed System (RBS) prevents fuel nozzle coking by automatically introducing cool air from the core compartment into the engine core flowpath after shutdown. This effectively lowers the fuel nozzle temperature below the coking threshold. RBS can operate for a maximum of 1 hour, and its effectiveness depends on ambient conditions (especially ambient temperature) and the total duration it runs. The last flight of the day contributes the most to fuel nozzle coke accumulation because of the extended dwell time at the gate. By actively managing post-shutdown thermal conditions, RBS significantly reduces coking-related problems, improves engine reliability, and lowers long-term maintenance costs. Now, also coming soon to the CFM56

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Libero battles in Serie A were likened to queens in chess. Scirea played on an intelligence level not seen before or since. Every pass intentional, every movement designed to bait the opposition 6. Here's Scirea getting Baresi out of position twice out wide resulting in goals.

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HustleBitch

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I've kept a pretty low (online) profile of what I'm building, but word's getting out. My company Astro Mechanica has invented a new kind of jet engine. Unlike any existing engine, it's efficient at every speed. Because it's efficient at every speed, we can use it in a new way: as the first stage of an orbital launch vehicle. The resulting platform will get payloads to orbit dramatically cheaper than all-rocket systems - among many possible applications. The key insight is to use electric motors to drive a compressor. That way we can make it spin at any speed, allowing it to "adapt" to it's airspeed and combustion cycle. One of the coolest parts: the video below is of a demonstrator my team and I built last year. We already have a new engine with 10x the thrust that will be complete next month.

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On October 9th, we spoke with Gian Paolo Vernocchi, CEO and Creative Director of DESTINYbit on how Unreal Engine 5 helped to deliver an innovative tactical RPG in NITRO GEN OMEGA. The game presents a “spaghetti anime” art style and blends turn-based gameplay with the feeling of directing an episode of an anime. Check it out:

On October 9th, we spoke with Gian Paolo Vernocchi, CEO and Creative Director of DESTINYbit on how Unreal Engine 5 helped to deliver an innovative tactical RPG in NITRO GEN OMEGA. The game presents a “spaghetti anime” art style and blends turn-based gameplay with the feeling of directing an episode of an anime. Check it out:

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Meisha Retsuden: Greatest 70s (PS1) has a feature where you can adjust timing, ignition, and Air/Fuel Ratio. You could get a bit of extra performance by somehow adjusting it so the “engine” dial goes to green, or screw up your car messing up with the settings. The car needs to be re-tuned if you attach new parts, too

Meisha Retsuden: Greatest 70s (PS1) has a feature where you can adjust timing, ignition, and Air/Fuel Ratio. You could get a bit of extra performance by somehow adjusting it so the “engine” dial goes to green, or screw up your car messing up with the settings. The car needs to be re-tuned if you attach new parts, too

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