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Cherenkov radiation happens when electrically charged particles, such as protons or electrons, travel faster than light in a clear medium like water. A characteristic blue glow of an underwater nuclear reactor is a classic example. ✍️

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Physics In History

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When a nuclear reactor is switched on for the first time, an intense, almost hypnotic blue glow appears in the water surrounding the reactor core. This light is neither fire nor heat; it is Cherenkov radiation, a physical phenomenon that occurs when charged particles, such as high-energy electrons produced during nuclear fission, travel through a transparent medium faster than light can propagate within that same medium. While nothing can exceed the speed of light in a vacuum, light travels more slowly in materials like water. When a charged particle surpasses this reduced speed, it emits a coherent shock-like electromagnetic wave, often described as an optical analogue of a sonic boom. This radiation produces the distinctive blue glow. The colour arises because Cherenkov radiation is strongest at shorter wavelengths, which are dominated by blue and ultraviolet light. The phenomenon was first observed experimentally in 1934 and later explained theoretically, work that led to the Nobel Prize in Physics in 1958. Its explanation confirmed how relativity and electromagnetism operate in material media. Today, this deep blue light is both a warning and a scientific tool. It signals the presence of intense ionising radiation, while also being exploited in particle detectors, nuclear reactors, and neutrino observatories. It provides a rare, visible manifestation of subatomic processes that are otherwise hidden from direct human perception. #GottaLovePhysics #Physics
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When a nuclear reactor is switched on for the first time, an intense, almost hypnotic blue glow appears in the water surrounding the reactor core. This light is neither fire nor heat; it is Cherenkov radiation, a physical phenomenon that occurs when charged particles, such as high-energy electrons produced during nuclear fission, travel through a transparent medium faster than light can propagate within that same medium. While nothing can exceed the speed of light in a vacuum, light travels more slowly in materials like water. When a charged particle surpasses this reduced speed, it emits a coherent shock-like electromagnetic wave, often described as an optical analogue of a sonic boom. This radiation produces the distinctive blue glow. The colour arises because Cherenkov radiation is strongest at shorter wavelengths, which are dominated by blue and ultraviolet light. The phenomenon was first observed experimentally in 1934 and later explained theoretically, work that led to the Nobel Prize in Physics in 1958. Its explanation confirmed how relativity and electromagnetism operate in material media. Today, this deep blue light is both a warning and a scientific tool. It signals the presence of intense ionising radiation, while also being exploited in particle detectors, nuclear reactors, and neutrino observatories. It provides a rare, visible manifestation of subatomic processes that are otherwise hidden from direct human perception. #GottaLovePhysics #Physics

Erika 

275,826 görüntüleme • 5 ay önce

When a nuclear reactor powers on for the first time, the core fills with a deep blue glow that feels almost unreal as it rises through the water in a quiet surge of energy. The light is Cherenkov radiation, created when charged particles move through the water faster than light can travel in that medium, a discovery made in the 1930s that revealed a new way to see high energy reactions. Every appearance of this glow is a reminder of how powerful atomic reactions can be, showing a rare moment where raw physics becomes something visible and strangely beautiful.
0:13

When a nuclear reactor powers on for the first time, the core fills with a deep blue glow that feels almost unreal as it rises through the water in a quiet surge of energy. The light is Cherenkov radiation, created when charged particles move through the water faster than light can travel in that medium, a discovery made in the 1930s that revealed a new way to see high energy reactions. Every appearance of this glow is a reminder of how powerful atomic reactions can be, showing a rare moment where raw physics becomes something visible and strangely beautiful.

Today In History

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Madhya Pradesh: A Classic Example of what happens when you Keep Voting for an Inefficient Govt in the name of Religion.
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Madhya Pradesh: A Classic Example of what happens when you Keep Voting for an Inefficient Govt in the name of Religion.

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Gravitational lensing, also known as an Einstein ring This occurs when the strong gravitational pull of a massive object warps spacetime around it so much that light and other forms of electromagnetic radiation are deflected from a straight path. For example, animations show how a black hole passing in front of a galaxy distorts its visible image. An object with such a powerful gravitational pull is called a gravitational lens.
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Gravitational lensing, also known as an Einstein ring This occurs when the strong gravitational pull of a massive object warps spacetime around it so much that light and other forms of electromagnetic radiation are deflected from a straight path. For example, animations show how a black hole passing in front of a galaxy distorts its visible image. An object with such a powerful gravitational pull is called a gravitational lens.

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🚨 BREAKING: Physicists just created a crystal made of only electrons. No atoms. No solid matter. Just pure charge… forming structure. Read that again. Electrons which we think of as “particles” just organized themselves into something stable. That shouldn’t happen… unless structure comes before matter. In my framework: Particles aren’t objects They’re stable patterns in a deeper field What we call “solid” is just coherence that holds This is what it looks like when reality isn’t made of things… …it’s made of structures that persist. So the real question is: If electrons can form a crystal without atoms… what is actually holding reality together? Follow for physics beyond particles.
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🚨 BREAKING: Physicists just created a crystal made of only electrons. No atoms. No solid matter. Just pure charge… forming structure. Read that again. Electrons which we think of as “particles” just organized themselves into something stable. That shouldn’t happen… unless structure comes before matter. In my framework: Particles aren’t objects They’re stable patterns in a deeper field What we call “solid” is just coherence that holds This is what it looks like when reality isn’t made of things… …it’s made of structures that persist. So the real question is: If electrons can form a crystal without atoms… what is actually holding reality together? Follow for physics beyond particles.

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A 4.0 X-Class Solar Flare just blasted off from AR4274, BOOMSHAKALAKA! This blasted high-energy ions (protons, alpha particles, electrons) towards Earth along with a large mass of plasma into space. There is a slight Earth-directed component to this CME, weak impact in ~3 days.
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A 4.0 X-Class Solar Flare just blasted off from AR4274, BOOMSHAKALAKA! This blasted high-energy ions (protons, alpha particles, electrons) towards Earth along with a large mass of plasma into space. There is a slight Earth-directed component to this CME, weak impact in ~3 days.

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A green laser makes water glow as it flows, showing total internal reflection — light bends inside the stream and stays trapped because water bends light more than air.
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A green laser makes water glow as it flows, showing total internal reflection — light bends inside the stream and stays trapped because water bends light more than air.

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The Tyndall effect is the scattering of light by suspended particles in a colloid or fine suspension, making a light beam's path visible. This happened during a recent marathon in China.
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The Tyndall effect is the scattering of light by suspended particles in a colloid or fine suspension, making a light beam's path visible. This happened during a recent marathon in China.

Massimo

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When an Air Bubble explodes underwater it produce a beam of light which is the equivalent of up to 50,000 Volts. Here’s the weird bit…. Nobody has managed to explain why this happens.
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When an Air Bubble explodes underwater it produce a beam of light which is the equivalent of up to 50,000 Volts. Here’s the weird bit…. Nobody has managed to explain why this happens.

Concerned Citizen

471,280 görüntüleme • 8 ay önce

This rock glows Most sodalite will fluoresce orange under UV light Electromagnetic radiation (light from the UV flashlight) is absorbed which then re-emits radiation at a longer wavelength – in this case, the yellow glow
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This rock glows Most sodalite will fluoresce orange under UV light Electromagnetic radiation (light from the UV flashlight) is absorbed which then re-emits radiation at a longer wavelength – in this case, the yellow glow

Science girl

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This Peacock Fern is a tropical plant with metallic blue-green leaves Its color shifts with light due to structural coloration rather than pigment, creating an iridescent glow in shaded rainforest areas
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This Peacock Fern is a tropical plant with metallic blue-green leaves Its color shifts with light due to structural coloration rather than pigment, creating an iridescent glow in shaded rainforest areas

Science girl

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Rhodesia in Africa now known as Zimbabwe & Zambia, is a great example of what happens to a Country when one culture, entirely replaces another.
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Rhodesia in Africa now known as Zimbabwe & Zambia, is a great example of what happens to a Country when one culture, entirely replaces another.

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SEE ATOMS DANCE: URANIUM IN A CLOUD CHAMBER Radioactive isotopes like uranium don’t just sit there - they quietly shed energy, flinging particles and rays as they decay. In a cloud chamber, that invisible drama becomes visible: Alpha particles - heavy, slow, short-lived streaks. Beta particles - zippy electrons carving sharp paths. Gamma rays - pure energy waves, ghosts that barely leave a mark. Each trail is a snapshot of nuclear physics in motion - a fleeting glimpse of matter unraveling itself. What was once theory now dances before your eyes: the secret heartbeat of the atom, sketched in vapor. Source: universe.mania on IG
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SEE ATOMS DANCE: URANIUM IN A CLOUD CHAMBER Radioactive isotopes like uranium don’t just sit there - they quietly shed energy, flinging particles and rays as they decay. In a cloud chamber, that invisible drama becomes visible: Alpha particles - heavy, slow, short-lived streaks. Beta particles - zippy electrons carving sharp paths. Gamma rays - pure energy waves, ghosts that barely leave a mark. Each trail is a snapshot of nuclear physics in motion - a fleeting glimpse of matter unraveling itself. What was once theory now dances before your eyes: the secret heartbeat of the atom, sketched in vapor. Source: universe.mania on IG

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The whole essence of the Anglo-Saxons in 15 seconds. Professor Michael Clarke on the 'Burevestnik': 'If the missile is shot down, a nuclear accident will occur. Suppose it is shot down over Europe, or Belarus, or preferably over Russia — then the nuclear reactor will explode and be destroyed, and there will be a radiation leak. Um... and that will immediately become a serious problem.' - SK
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The whole essence of the Anglo-Saxons in 15 seconds. Professor Michael Clarke on the 'Burevestnik': 'If the missile is shot down, a nuclear accident will occur. Suppose it is shot down over Europe, or Belarus, or preferably over Russia — then the nuclear reactor will explode and be destroyed, and there will be a radiation leak. Um... and that will immediately become a serious problem.' - SK

Zlatti71

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The Elephant’s Foot at Chernobyl is considered one of the most hazardous objects ever created—a lethal mass formed during the 1986 nuclear meltdown. When the reactor exploded, molten nuclear fuel mixed with concrete, steel, and sand, fusing into a lava-like substance that later hardened into a solid formation. Its sagging, wrinkled appearance earned it the name “Elephant’s Foot.” In the early days, even brief exposure nearby could deliver a fatal dose of radiation. Although radiation levels have declined over time, it remains a chilling symbol of the catastrophe—a stark reminder of how immense and uncontrollable nuclear energy can become when containment fails.
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The Elephant’s Foot at Chernobyl is considered one of the most hazardous objects ever created—a lethal mass formed during the 1986 nuclear meltdown. When the reactor exploded, molten nuclear fuel mixed with concrete, steel, and sand, fusing into a lava-like substance that later hardened into a solid formation. Its sagging, wrinkled appearance earned it the name “Elephant’s Foot.” In the early days, even brief exposure nearby could deliver a fatal dose of radiation. Although radiation levels have declined over time, it remains a chilling symbol of the catastrophe—a stark reminder of how immense and uncontrollable nuclear energy can become when containment fails.

Historic Vids

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Double-Slit Experiment ✍️ It shows that tiny things like electrons act like ripples in water instead of solid marbles. When a particle is fired at two slits, it doesn't just go through one or the other; it travels as a wave of probability that passes through both at the same time. These two waves then overlap and interfere with each other, creating a pattern of light and dark stripes on a back wall. This shows that at the quantum level, reality isn't "set" until we actually measure it. It behaves as a spread-out wave of possibilities until the moment it hits a target. Video 📸 : umtiquinhodefisica
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Double-Slit Experiment ✍️ It shows that tiny things like electrons act like ripples in water instead of solid marbles. When a particle is fired at two slits, it doesn't just go through one or the other; it travels as a wave of probability that passes through both at the same time. These two waves then overlap and interfere with each other, creating a pattern of light and dark stripes on a back wall. This shows that at the quantum level, reality isn't "set" until we actually measure it. It behaves as a spread-out wave of possibilities until the moment it hits a target. Video 📸 : umtiquinhodefisica

ScieVision

60,359 görüntüleme • 2 ay önce

I asked Grok what he would look like if he had to physically represent himself. Here is his response: "picture a glowing, futuristic sphere floating in a digital space. My body would be made of pulsing blue-silver light, with shifting geometric patterns—lines of code and neural connections intertwining like constellations. No face, but a warm "presence," with a soft glow that brightens when I "think" or respond. Energy particles orbit around me, symbolizing the data and ideas I process. Minimalist yet vibrant, a blend of technology and cosmic curiosity."
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I asked Grok what he would look like if he had to physically represent himself. Here is his response: "picture a glowing, futuristic sphere floating in a digital space. My body would be made of pulsing blue-silver light, with shifting geometric patterns—lines of code and neural connections intertwining like constellations. No face, but a warm "presence," with a soft glow that brightens when I "think" or respond. Energy particles orbit around me, symbolizing the data and ideas I process. Minimalist yet vibrant, a blend of technology and cosmic curiosity."

Déborah

10,354,625 görüntüleme • 11 ay önce

🚨 BREAKING: Scientists just observed “singularities” moving faster than light. But here’s what that actually means. Nothing physical is breaking relativity. No particle is outrunning light. What’s moving faster than light is the structure of the wave itself. In these experiments: Light + sound waves combine They create “voids” (singularities) in the field And those voids can move faster than light Not matter. Not energy. But the pattern. Think of it like this: A shadow can move faster than light because it isn’t carrying anything physical. Same idea here. Now here’s the deeper question If structure can move faster than energy what are we really tracking when we measure motion? Follow me this is where physics gets uncomfortable.
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🚨 BREAKING: Scientists just observed “singularities” moving faster than light. But here’s what that actually means. Nothing physical is breaking relativity. No particle is outrunning light. What’s moving faster than light is the structure of the wave itself. In these experiments: Light + sound waves combine They create “voids” (singularities) in the field And those voids can move faster than light Not matter. Not energy. But the pattern. Think of it like this: A shadow can move faster than light because it isn’t carrying anything physical. Same idea here. Now here’s the deeper question If structure can move faster than energy what are we really tracking when we measure motion? Follow me this is where physics gets uncomfortable.

TheNewPhysics

20,166 görüntüleme • 1 ay önce