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ScienceABC Videos is the audio-visual wing of your favorite Science website. Here, we present you some of the whackiest ideas and scientific phenomena through animated videos in our signature style. Subscribe to our YouTube channel “ScienceABC” to never miss a video.

A black hole is a celestial body or simply a place in space where the gravitational pull is so high that nothing, not even light can escape it. This is why it's completely black, and hence it's called a black hole. A black hole's “surface,” called its event horizon, defines the boundary where the velocity needed to escape exceeds the speed of light.

When a massive star dies, it leaves a small but dense remnant core in its wake. If the mass of the core if more than around 3 times the mass of the sun, the force of gravity overwhelms all other forces and a black hole is formed.

A black hole is not just empty space; in fact, it’s a great deal of amount packed into a very small area. Think of a star which is 10 times more massive than our is squeezed into a sphere which has the diameter equal to the size of New York city. The result will be a celestial object whose gravitational field is so strong that nothing, not even light, can escape it. This is why black holes are named so, because they are pitch black!


"Black holes explained" is a short-animated video explaining the science of ‘what is a black hole’ and ‘how black holes are formed’? The "black hole picture 2019" is a recent event that occurred in April 2019, which involved the release of the first ever black hole picture to the general public. But what are black holes? How are black holes formed? What’s the explanation behind the black hole theory?


#science #animation #blackhole

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A black hole is a celestial body or simply a place in space where the gravitational pull is so high that nothing, not even light can escape it. This is why it's completely black, and hence it's called a black hole. A black hole's “surface,” called its event horizon, defines the boundary where the velocity needed to escape exceeds the speed of light.

When a massive star dies, it leaves a small but dense remnant core in its wake. If the mass of the core if more than around 3 times the mass of the sun, the force of gravity overwhelms all other forces and a black hole is formed.

A black hole is not just empty space; in fact, it’s a great deal of amount packed into a very small area. Think of a star which is 10 times more massive than our is squeezed into a sphere which has the diameter equal to the size of New York city. The result will be a celestial object whose gravitational field is so strong that nothing, not even light, can escape it. This is why black holes are named so, because they are pitch black!


"Black holes explained" is a short-animated video explaining the science of ‘what is a black hole’ and ‘how black holes are formed’? The "black hole picture 2019" is a recent event that occurred in April 2019, which involved the release of the first ever black hole picture to the general public. But what are black holes? How are black holes formed? What’s the explanation behind the black hole theory?


#science #animation #blackhole

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95 11

YouTube Video VVVjTjNJdUlBUjZGbjc0RldNUWY2bEZBLktrd3A3QXA2TjlB

Black Holes Explained: What Is a Black Hole? How They Form?

Science ABC 1.8K views May 16, 2022 6:15 pm

The moment you think about astronauts, what comes to your mind would probably be a picture of an astronaut in a white spacesuit experiencing weightlessness in the vast expanse of space. Or perhaps you don't imagine a white astronaut. You imagine him/her to be geared up in orange. Besides white and orange, you would not have seen any astronaut donning any other color. So why do astronauts only wear white and orange spacesuits?

Basically, there are two types of spacesuits:
1. ACES suit (orange)
2. EVA suit (white)

ACES (advanced crew escape suit) suit, also called Launch/Entry suit, is a full-pressure orange suit that astronauts going into space wear during launch (lift-off). The reason why they are orange is because the color orange is highly visible in search and rescue operations (especially for sea rescue).

The EVA (extra vehicular activities) suit is intended for use in extreme space conditions. It is a white suit worn by astronauts during spacewalks.  The most important reason for using white for EVA suits is that white reflects more heat than other colors, keeping the astronaut cool!

#spacesuit #space #astronaut

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Stock Music Source: elements.envato.com

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The moment you think about astronauts, what comes to your mind would probably be a picture of an astronaut in a white spacesuit experiencing weightlessness in the vast expanse of space. Or perhaps you don't imagine a white astronaut. You imagine him/her to be geared up in orange. Besides white and orange, you would not have seen any astronaut donning any other color. So why do astronauts only wear white and orange spacesuits?

Basically, there are two types of spacesuits:
1. ACES suit (orange)
2. EVA suit (white)

ACES (advanced crew escape suit) suit, also called Launch/Entry suit, is a full-pressure orange suit that astronauts going into space wear during launch (lift-off). The reason why they are orange is because the color orange is highly visible in search and rescue operations (especially for sea rescue).

The EVA (extra vehicular activities) suit is intended for use in extreme space conditions. It is a white suit worn by astronauts during spacewalks. The most important reason for using white for EVA suits is that white reflects more heat than other colors, keeping the astronaut cool!

#spacesuit #space #astronaut

Stock Video Source: elements.envato.com , pexels.com , pixabay.com
Stock Image Source: elements.envato.com , pexels.com , pixabay.com
Stock Music Source: elements.envato.com

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20 4

YouTube Video VVVuSTBhRmVCeldCaWlYaUhwNTZrYXFRLlB3WWl5a1VxN2pn

How Do Astronauts Choose The Best Color For Their Spacesuits?

ScienceABC II 314 views May 12, 2022 4:00 pm

Sitting for long periods can cause blood clots due to impeded flow of blood. Sitting without moving much can cause the blood to clot according to the effects of gravity. This doesn’t happen during sleep since we do move our bodies during our night’s sleep.

In the ‘lying down’ or ‘sleeping’ position, the legs are more or less on the same horizontal plane as the heart. As a result, the blood does not have to work very hard to fight gravity to reach the lungs and heart. 

But the dynamics change while you’re sitting. While sitting, legs usually don't move much, and they are often angled. As such, the blood needs to fight gravity to flow upwards. The velocity of blood flow is impeded by the force of gravity. Thus sitting for long hours without moving much can potentially lead to blood clots in the body.

#bloodclot #bloodflow #clots
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Stock Music Source: 
––––––––––––––––––––––––––––––
Track: Indigo — Nelvian [Audio Library Release]
Music provided by Audio Library Plus
Watch: https://youtu.be/XCLmFyCPeqk
Free Download / Stream: https://alplus.io/indigo
––––––––––––––––––––––––––––––

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Sitting for long periods can cause blood clots due to impeded flow of blood. Sitting without moving much can cause the blood to clot according to the effects of gravity. This doesn’t happen during sleep since we do move our bodies during our night’s sleep.

In the ‘lying down’ or ‘sleeping’ position, the legs are more or less on the same horizontal plane as the heart. As a result, the blood does not have to work very hard to fight gravity to reach the lungs and heart.

But the dynamics change while you’re sitting. While sitting, legs usually don't move much, and they are often angled. As such, the blood needs to fight gravity to flow upwards. The velocity of blood flow is impeded by the force of gravity. Thus sitting for long hours without moving much can potentially lead to blood clots in the body.

#bloodclot #bloodflow #clots
Stock Video Source: elements.envato.com , pexels.com , pixabay.com
Stock Image Source: elements.envato.com , pexels.com , pixabay.com
Stock Music Source:
––––––––––––––––––––––––––––––
Track: Indigo — Nelvian [Audio Library Release]
Music provided by Audio Library Plus
Watch: https://youtu.be/XCLmFyCPeqk
Free Download / Stream: https://alplus.io/indigo
––––––––––––––––––––––––––––––

SUBSCRIBE to get more such science videos!
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8 0

YouTube Video VVVuSTBhRmVCeldCaWlYaUhwNTZrYXFRLkRPOURfbnc2QkQw

Why Don't You Get Blood Clots When You Sleep But Get It When You Sit For Long Hours?

ScienceABC II 92 views May 2, 2022 4:00 pm

Water especially the one which flows through the pipe contains atmospheric gases, such as nitrogen and oxygen, dissolved in it. As the glass filled with water sits out for a few hours, its temperature rises slightly (water gets warmer), which causes the dissolved gases in it to come out of the water and form bubbles along the inside of the glass.

When poured water in a glass is left at room temperature for a few hours, the atmospheric pressure begins to drop as its temperature begins to rise. As a result, the dissolved gases in the water escape from the solution and form bubbles in the rough areas inside the glass.

#bubble #dissolvedgases #chemistry

Stock Video Source: elements.envato.com , pexels.com , pixabay.com
Stock Image Source: elements.envato.com , pexels.com , pixabay.com
Stock Music Source: 
––––––––––––––––––––––––––––––
Track: Days For Tomorrow — Metro Vice [Audio Library Release]
Music provided by Audio Library Plus
Watch: https://youtu.be/iAiZexyH7uI
Free Download / Stream: https://alplus.io/days-tomorrow
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Water especially the one which flows through the pipe contains atmospheric gases, such as nitrogen and oxygen, dissolved in it. As the glass filled with water sits out for a few hours, its temperature rises slightly (water gets warmer), which causes the dissolved gases in it to come out of the water and form bubbles along the inside of the glass.

When poured water in a glass is left at room temperature for a few hours, the atmospheric pressure begins to drop as its temperature begins to rise. As a result, the dissolved gases in the water escape from the solution and form bubbles in the rough areas inside the glass.

#bubble #dissolvedgases #chemistry

Stock Video Source: elements.envato.com , pexels.com , pixabay.com
Stock Image Source: elements.envato.com , pexels.com , pixabay.com
Stock Music Source:
––––––––––––––––––––––––––––––
Track: Days For Tomorrow — Metro Vice [Audio Library Release]
Music provided by Audio Library Plus
Watch: https://youtu.be/iAiZexyH7uI
Free Download / Stream: https://alplus.io/days-tomorrow
––––––––––––––––––––––––––––––

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15 2

YouTube Video VVVuSTBhRmVCeldCaWlYaUhwNTZrYXFRLlJKUERVcVNfbUdj

Why Do Bubbles Form In A Glass Of Water?

ScienceABC II 316 views April 28, 2022 11:00 am

Why Does Diarrhea Travel Quickly Through The Body When Digestion Takes So Long?

ScienceABC II 275 views April 25, 2022 2:00 pm

The gut microbiome are the trillions of microorganisms – primarily bacteria, but also fungi, viruses and protists – that live inside your digestive system. Scientists are discovering that these microbes are vital for us to live healthy lives. They help us digest food and provide us with nutrients, they can modulate our mood and help us sleep better, and they even help the immune system do their job better. 

Gut bacteria are those bacteria that live inside the digestive system of all animals, including humans. We’ve found that these bacteria are crucial to our health, both physical and mental. They help us digest food, provide us with nutrients and help us fend of pathogenic bacteria.

Simply put – gut bacteria, also known as the gut microbiota, are the bacteria present in our bodies lined across the inner walls of our gastrointestinal tract. There are about 300-500 bacterial species in the human gut with their average population being 100 trillion. That’s enough to fill twelve thousand, six hundred and fifty-eight Earths at our current population. Initially, that was thought to be ten times the number of human cells in our body but new research suggests the ratio of bacterial cells to human cells could be 1.3:1.

#gut #microbiome #science

References: 
https://www.mdpi.com/1422-0067/16/4/7493
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3983973/
https://www.cell.com/cell/fulltext/S0092-8674(16)00053-2?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0092867416000532%3Fshowall%3Dtrue 
https://pubmed.ncbi.nlm.nih.gov/22137615/ 
https://www.nature.com/articles/d41586-019-02807-x
https://www.sciencedirect.com/science/article/pii/S1323893017301119#:~:text=Although%20intestinal%20bacterial%20colonization%20begins,two%20big%20transitions%20in%20infancy
https://www.mdpi.com/2079-9721/9/3/45 
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5433529/ 
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5847071/ 
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0222394#ack 
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4367209/ 

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The gut microbiome are the trillions of microorganisms – primarily bacteria, but also fungi, viruses and protists – that live inside your digestive system. Scientists are discovering that these microbes are vital for us to live healthy lives. They help us digest food and provide us with nutrients, they can modulate our mood and help us sleep better, and they even help the immune system do their job better.

Gut bacteria are those bacteria that live inside the digestive system of all animals, including humans. We’ve found that these bacteria are crucial to our health, both physical and mental. They help us digest food, provide us with nutrients and help us fend of pathogenic bacteria.

Simply put – gut bacteria, also known as the gut microbiota, are the bacteria present in our bodies lined across the inner walls of our gastrointestinal tract. There are about 300-500 bacterial species in the human gut with their average population being 100 trillion. That’s enough to fill twelve thousand, six hundred and fifty-eight Earths at our current population. Initially, that was thought to be ten times the number of human cells in our body but new research suggests the ratio of bacterial cells to human cells could be 1.3:1.

#gut #microbiome #science

References:
https://www.mdpi.com/1422-0067/16/4/7493
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3983973/
https://www.cell.com/cell/fulltext/S0092-8674(16)00053-2?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0092867416000532%3Fshowall%3Dtrue
https://pubmed.ncbi.nlm.nih.gov/22137615/
https://www.nature.com/articles/d41586-019-02807-x
https://www.sciencedirect.com/science/article/pii/S1323893017301119#:~:text=Although%20intestinal%20bacterial%20colonization%20begins,two%20big%20transitions%20in%20infancy
https://www.mdpi.com/2079-9721/9/3/45
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5433529/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5847071/
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0222394#ack
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4367209/

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499 29

YouTube Video VVVjTjNJdUlBUjZGbjc0RldNUWY2bEZBLkphWE1HRlNocURF

Gut Microbiome Explained in Simple Words

Science ABC 12.8K views April 18, 2022 4:00 pm