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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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1,688,159 views • 3 years ago •via X (Twitter)

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This tattoo glows under UV light due to the UV ink ❤ © boomzodat

This tattoo glows under UV light due to the UV ink ❤ © boomzodat

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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

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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The 1.9 X-flare from earlier today is still in-progress, categorizing this as a long-duration event. The Americas were just hit with A TON of light radiation!

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🔥 Crazy advertising: this is how sunscreen is promoted in Tel Aviv Israel is one of the countries with the highest levels of solar radiation in the world. In Tel Aviv, the UV index stays extremely high almost all year round. Even locals avoid going outside without protection — the sun there is absolutely brutal.

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$🚨 SCIENTISTS EXPLAIN: Light doesn’t actually “slow down” in glass time does. And that’s exactly why rainbows exist. For centuries we were taught that light slows down when it enters glass or water, causing refraction. But the deeper reality is more beautiful: light still travels at c between atoms. What changes is the time delay caused by constant absorption and re-emission by the material’s electrons. This tiny delay is different for every wavelength → which is why white light splits into a rainbow. Why this matters: • In vacuum, light always travels at c • In glass/water, the phase velocity and group velocity appear slower due to interactions with matter • Different colors (wavelengths) experience different delays → dispersion • This is what creates rainbows, prisms, and the beautiful colors we see in nature The deeper implication is mind-bending: Light doesn’t “slow down” like a car hitting traffic. It’s constantly being absorbed and re-emitted by atoms, and the accumulated time delay reshapes how the wave propagates. The universe uses time itself as a tool to bend light and paint rainbows across the sky. What do you think is this one of the most elegant explanations in physics? Follow for more frontier optics and quantum explanations.$

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What female goes into the sallyport at midnight? Needs a flashlight from her friend to light up the vehicle and then touches the vehicle with no gloves on???? This video was brightened 200% from the original

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Farming looks a little different from up here. 🚁 At TRIC Robotics, we’re helping farmers protect their crops with UV-light — chemical-free, efficient, and sustainable. 🍓🌱 The future of farming is bright. 💡

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FROM INBOX | Harare road users no longer obey traffic lights, which is deeply concerning as it could cost lives. The traffic lights were fully operational at the time, yet on Sunday, February 23, 2025, in Kambuzuma, this driver ran a red light. Sadly, most drivers no longer adhere to traffic signals, and we fear the day when this reckless behavior results in tragedy. Even when the light is red, only a few road users stop. This video serves as evidence of our daily reality on the roads. Zimbabwe Republic Police

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𝐂𝐫𝐢𝐦𝐞 𝐖𝐚𝐭𝐜𝐡 𝐙𝐖

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3. The most common thing NOBODY talks about is that the only thing Sonic emits from himself is BLUE LIGHT, even in the damn videos wind glazers use is completely sidelined and ignored. Nobody complained about it with Sonic X, nobody complains about it in the modern media, INCLUDING THE BOOST. Like, cmon guys, the lightning is, most likely, a visual representation of this blue light used as an offensive visual, mostly for impact. Yall are taking this way too seriously.

3. The most common thing NOBODY talks about is that the only thing Sonic emits from himself is BLUE LIGHT, even in the damn videos wind glazers use is completely sidelined and ignored. Nobody complained about it with Sonic X, nobody complains about it in the modern media, INCLUDING THE BOOST. Like, cmon guys, the lightning is, most likely, a visual representation of this blue light used as an offensive visual, mostly for impact. Yall are taking this way too seriously.

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In the latest J-36 Landing Vid, It is Also Clearly Visible that Its Canopy Colored in Light DARK which RARELY SEEN on PLAAF Jets Bold Guess to New Canopy Coating - Meet Integrated Stealth Requirements - Meet UV Protection Requirements as CAC Sixer May Operate at HIGHER Altitudes

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