Video yükleniyor...

Video Yüklenemedi

Ana Sayfaya Dön

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

sciencegirl's profile picture

Science girl

5,811,241 subscribers

1,688,159 görüntüleme • 3 yıl önce •via X (Twitter)

LIVE

Anya Rossi• Live Now

Private livecam show

0 Yorum

Yorum bulunmuyor

Orijinal gönderinin yorumları burada görünecek

Benzer Videolar

This tattoo glows under UV light due to the UV ink ❤ © boomzodat
0:10

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

Sarahh

15,335 görüntüleme • 1 yıl önce

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
0:10

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 

276,032 görüntüleme • 7 ay önce

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!
0:15

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!

Stefan Burns

105,736 görüntüleme • 6 ay önce

Black people are built differently. Sunlight acts as the primary trigger for melanin production in Black people. When UV rays penetrate your skin, melanocytes produce this pigment to shield your DNA from radiation damage.
0:14

Black people are built differently. Sunlight acts as the primary trigger for melanin production in Black people. When UV rays penetrate your skin, melanocytes produce this pigment to shield your DNA from radiation damage.

Typical African

12,380 görüntüleme • 17 gün önce

The Ghost of Cassiopeia: a cosmic phantom in the glow of a volatile star 👻 Located 550 light-years from Earth, the IC 63 nebula is a ghostly cloud of dust and gas. It is gradually being eroded by the intense radiation from a nearby, unpredictable star: Gamma Cassiopeiae. Autumn and winter are the best times to observe this remarkable object from the Northern Hemisphere. 🔭
0:18

The Ghost of Cassiopeia: a cosmic phantom in the glow of a volatile star 👻 Located 550 light-years from Earth, the IC 63 nebula is a ghostly cloud of dust and gas. It is gradually being eroded by the intense radiation from a nearby, unpredictable star: Gamma Cassiopeiae. Autumn and winter are the best times to observe this remarkable object from the Northern Hemisphere. 🔭

Black Hole

24,114 görüntüleme • 4 gün önce

🔥 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.
0:16

🔥 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.

NEXTA

45,027 görüntüleme • 2 ay önce

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
0:11

Sensitive content

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

Dixie Normus

140,192 görüntüleme • 2 ay önce

🚨 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.
0:10

🚨 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.

TheNewPhysics

89,146 görüntüleme • 2 ay önce

A Cosmic "Bubble": The Birth and Death of Stars Through Hubble's Lens 🫧 Located 7,100 light-years away, the NGC 7635 nebula owes its shape to the powerful stellar wind from a massive central star. This giant sphere of gas and dust is illuminated by intense radiation, creating one of the most spectacular sights in our galaxy.
0:15

A Cosmic "Bubble": The Birth and Death of Stars Through Hubble's Lens 🫧 Located 7,100 light-years away, the NGC 7635 nebula owes its shape to the powerful stellar wind from a massive central star. This giant sphere of gas and dust is illuminated by intense radiation, creating one of the most spectacular sights in our galaxy.

Black Hole

27,546 görüntüleme • 11 gün önce

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. 💡
0:20

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. 💡

TRIC Robotics

25,649 görüntüleme • 9 ay önce

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
0:12

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

𝐂𝐫𝐢𝐦𝐞 𝐖𝐚𝐭𝐜𝐡 𝐙𝐖

52,776 görüntüleme • 1 yıl önce

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.
0:00

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.

🗿KAD THE CHAD🗿/OPEN Commissions/

11,529 görüntüleme • 1 ay önce

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.
0:14

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.

Black Hole

36,586 görüntüleme • 5 ay önce

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.
0:14

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.

Black Hole

11,651 görüntüleme • 5 ay önce

Incredible new study at Washington State University found Egyptian Blue emits near‑infrared light 🤯 This is a fragment of ancient Egyptian Blue paint. When researchers hit it with visible light (green, around 530–550 nm), the pigment absorbed it and re‑emitted near‑infrared light at 910–940 nm. Our eyes can’t see NIR, but a modified camera can, so the pigment looks like it’s glowing. Modern NIR‑emitting pigments are used today in anti‑counterfeiting, biomedical imaging, cooling tech, and more. In the hot sun of the Egyptian desert, if a person wore clothing painted in Egyptian Blue, they would stay cooler by radiating some of the absorbed sunlight back out as near‑infrared instead of trapping it as heat.
0:16

Incredible new study at Washington State University found Egyptian Blue emits near‑infrared light 🤯 This is a fragment of ancient Egyptian Blue paint. When researchers hit it with visible light (green, around 530–550 nm), the pigment absorbed it and re‑emitted near‑infrared light at 910–940 nm. Our eyes can’t see NIR, but a modified camera can, so the pigment looks like it’s glowing. Modern NIR‑emitting pigments are used today in anti‑counterfeiting, biomedical imaging, cooling tech, and more. In the hot sun of the Egyptian desert, if a person wore clothing painted in Egyptian Blue, they would stay cooler by radiating some of the absorbed sunlight back out as near‑infrared instead of trapping it as heat.

Ancient Hypotheses

177,272 görüntüleme • 5 ay önce

Yosemite’s Firefall waterfall This is a natural phenomenon at Horsetail Fall, which glows orange during mid to late February when sunlight hits the waterfall just right.
0:12

Yosemite’s Firefall waterfall This is a natural phenomenon at Horsetail Fall, which glows orange during mid to late February when sunlight hits the waterfall just right.

Rob

18,912 görüntüleme • 2 ay önce

A research team at IIT Guwahati led by Prof. G. Krishnamoorthy, from the Dept. of Chemistry, have developed a highly responsive fluorescent sensor that can detect cyanide in water and human cells using only a UV light source. More:
0:17

A research team at IIT Guwahati led by Prof. G. Krishnamoorthy, from the Dept. of Chemistry, have developed a highly responsive fluorescent sensor that can detect cyanide in water and human cells using only a UV light source. More:

IIT Guwahati

12,889 görüntüleme • 1 yıl önce

Ayahuasca Vine Under UV Light. The ayahuasca vine, scientifically known as Banisteriopsis caapi, is a South American liana of the Malpighiaceae family. It is a key ingredient in ayahuasca, a traditional psychedelic brew used by indigenous peoples of the Amazon. The vine itself is also sometimes called caapi, soul vine, or yage.
0:10

Ayahuasca Vine Under UV Light. The ayahuasca vine, scientifically known as Banisteriopsis caapi, is a South American liana of the Malpighiaceae family. It is a key ingredient in ayahuasca, a traditional psychedelic brew used by indigenous peoples of the Amazon. The vine itself is also sometimes called caapi, soul vine, or yage.

Bronze Giant

15,115 görüntüleme • 1 yıl önce