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🚨 BREAKING: “Light has no mass… so why does gravity bend it?” This is where physics gets weird. In school, you’re told: Gravity pulls on mass But light? Mass = 0 So why does it bend? Because gravity isn’t a force. It’s geometry. Mass bends spacetime. Light doesn’t resist... show more

TheNewPhysics

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206,909 views • 1 month ago •via X (Twitter)

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Black Hole Singularity; It is the theoretical center of a black hole, predicted by general relativity as a point of infinite density, zero volume, and infinite spacetime curvature. It is where matter is crushed, laws of physics break down, and gravity is absolute, representing a "point of no return" within the event horizon.

Black Hole Singularity; It is the theoretical center of a black hole, predicted by general relativity as a point of infinite density, zero volume, and infinite spacetime curvature. It is where matter is crushed, laws of physics break down, and gravity is absolute, representing a "point of no return" within the event horizon.

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🚨 SCIENTISTS MAY HAVE FOUND A REAL “LOOPHOLE” FOR WARP DRIVES. And for the first time, the math may not completely break physics. For decades, warp drives were considered impossible because they seemed to require massive amounts of “exotic negative energy” that doesn’t exist in usable quantities. But new theoretical models suggest there may be ways to reshape spacetime using far less exotic energy or in some versions, almost none at all. Why this matters: • A warp drive doesn’t actually move the ship faster than light • It compresses spacetime in front of the craft and expands it behind • The ship stays inside a stable bubble while the universe itself moves around it • Einstein’s speed limit remains intact the ship never locally exceeds c The deeper implication is mind-bending: If spacetime can be engineered like this, distance itself becomes programmable. Interstellar travel would stop being an impossible energy problem… and turn into a geometry problem. The universe may not be blocking faster-than-light travel. We may simply be too primitive to shape spacetime correctly yet. What happens when humanity learns to engineer gravity itself? Follow for more frontier physics and reality-bending breakthroughs.

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Who needs a broomstick when you’ve got skis? 💅💚 Nika Kriznar is defying gravity... And when you’re this iconic, you’re not just in it for the jump, you’re in it For Good. #WickedForGood

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🚨 Live footage of the Andromeda Galaxy — but technically, you’re watching 2.5 million-year-old light. What we see today is the galaxy as it looked long before humans existed. ✨

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Practical physics in the shed today: how many spanners does it take before gravity takes over? Answer: slightly more than expected.

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THE MILKY WAY IS ABOUT 100,000 LIGHT-YEARS WIDE. That means light — traveling at 299,792 kilometers per second — would need 100,000 years to cross our galaxy from one side to the other. It contains an estimated 100–400 billion stars, including our Sun, orbiting a supermassive black hole about 4 million times the mass of the Sun. When you see the Milky Way arching across a dark sky, you are looking edge-on through billions of distant suns. You’re inside that structure.

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🚨 THIS HAS NEVER HAPPENED BEFORE 🚨 🚨NOBODY UNDERSTANDS WHAT THEY JUST TRIGGERED. 🚨 🚨 People always talk about Iranian oil in terms of barrels, but rarely about what’s actually inside them. That’s the key difference—and the reason Western refineries have quietly relied on back-channel networks through places like Dubai for years to keep getting it, even under sanctions. Crude oil isn’t all the same. It’s a mix of hydrocarbons with different molecular weights, and that mix determines how easily it can be turned into the fuels refineries actually sell—like gasoline, diesel, jet fuel, and heating oil. The main measure here is API gravity. Higher API means lighter crude that’s easier and cheaper to refine, and it produces more of those high-value fuels. Lower API means heavier crude that takes more energy, more processing, and more expensive equipment, while producing more low-value leftovers. Iranian Light crude sits right in a sweet spot, with an API gravity around 33–36 and moderate sulfur levels. It’s light enough to produce a lot of gasoline and middle distillates without high costs, but not so light that it limits what refineries can make. In industry terms, it’s close to an ideal blend. Now look at the alternatives. Venezuela’s Merey crude is much heavier, with very low API gravity and high sulfur. Refining it profitably requires specialized, expensive equipment like cokers and hydrocrackers. Some refineries are built for that—but it’s not interchangeable with Iranian crude. It’s a completely different type of input. On the other end, US West Texas Intermediate is very light and low in sulfur. Sounds perfect in theory, but in practice it’s almost too light. Many refineries—especially in Europe and Asia—are designed for medium-grade crude, so they can’t just switch to WTI. They often have to blend it with heavier oils to make it work. That’s where Iranian crude stands out. It fits right into the middle of the system. It doesn’t need the heavy-duty processing of Venezuelan oil or the blending adjustments required for ultra-light US shale. That balance is why it’s consistently in demand and often priced at a premium. It also explains why countries like India kept buying it despite sanctions, and why those complex trading networks through Dubai existed in the first place. The Strait of Hormuz isn’t just a route for oil—it’s a route for this specific kind of oil that global refineries are optimized to process. If that flow gets disrupted, it’s not just about losing supply. It’s about losing the type of crude the system runs most efficiently on, forcing refineries to adapt with less suitable alternatives. That’s what’s really baked into oil prices like $82—not just how much oil is available, but what kind it is.

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July the 4th is over but we aren’t done. About to light it up 🧨

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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

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

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Baby Capybara was enjoying it too much, he forgot about gravity 😊

Baby Capybara was enjoying it too much, he forgot about gravity 😊

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🐯: there’s so many uses for this…(light stick) then marz giggling about it😭

🐯: there’s so many uses for this…(light stick) then marz giggling about it😭

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non aesthetic things This is a gravity dam It withstands the horizontal force of water using its own weight, gravity holds it down, stopping the water in the reservoir pushing it over This one is in China and is the Xiaolangdi Dam, here the reservoir is releasing water

non aesthetic things This is a gravity dam It withstands the horizontal force of water using its own weight, gravity holds it down, stopping the water in the reservoir pushing it over This one is in China and is the Xiaolangdi Dam, here the reservoir is releasing water

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This tradition in Kosovo where a rural village has only one mosque, children wait outside for the mosque's light to turn on so they can race home and tell their families it is time for iftar.

This tradition in Kosovo where a rural village has only one mosque, children wait outside for the mosque's light to turn on so they can race home and tell their families it is time for iftar.

•

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This teacher made physics fun by showing how light travels straight and appears only when it hits a surface.

This teacher made physics fun by showing how light travels straight and appears only when it hits a surface.

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