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How big is the universe ... compared with a grain of sand?

  • How big is the universe ... compared with a grain of sand?

    6:44

    How big is the universe ... compared with a grain of sand?

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    'You'll never get your head around how big the universe is,' warns astronomer Pete Edwards of the University of Durham in this film about measuring astronomical distances. 'There are as many stars in the universe as there are grains of sand on the Earth.' So how far is a light year? And supposing our galaxy were the size of a grain of sand, how big would the universe be?

  • Are There More Grains of Sand on Earth or Stars in the Universe? | Dont Be Dumb

    4:06

    Have you ever gazed up into the night sky and wondered whether there are more grains of sand on Earth or stars in the universe? Well get back inside and watch this video.

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  • Mind Blowing! ...Earth Compared To The Rest Of The Universe - Amazing Graphic Presentation

    3:34

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    Music: Doggy (Spacey Pooch Mix) by Dhruva Aliman - - Spotify - - “There are more stars in our Universe than there are grains of sand on all the beaches on Earth.” There are 100 to 400 billion stars in the Milky Way and more than 100 billion galaxies in the Universe – maybe as many as 500 billion. If you multiply stars by galaxies, at the low end, you get 10 billion billion stars, or 10 sextillion stars in the Universe – a 1 followed by 22 zeros. At the high end, it’s 200 sextillion.

    These are mind bogglingly huge numbers. How do they compare to the number of grains of sand on the collective beaches of an entire planet? This type of sand measures about a half millimeter across.

    You could put 20 grains of sand packed in side-by-side to make a centimeter. 8000 grains in one cubic centimeter. If you took 10 sextillion grains of sand, put them into a ball, it would have a radius of 10.6 kilometers. And for the high end of our estimate, 200 sextillion, it would be 72 kilometers across. If we had a sphere bigger than the Earth, it would be an easy answer, but no such luck. This might be close.

    So, is there that much sand on all the beaches, everywhere, on this planet? You’d need to estimate the average volume of a sandy beach and the average amount of the world’s coastlines which are beaches.

    The estimates and calculations made by Dr. Jason Marshall, aka, the Math Dude are that, there about 700 trillion cubic meters of beach of Earth, and that works out to around 5 sextillion grains of sand.

    Music: Doggy (Spacey Pooch Mix) by Dhruva Aliman

  • How the Universe is Way Bigger Than You Think

    10:28

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    The Universe is so enormous we can't really comprehend it all. I try my best to visualize it in this video. This video had without a doubt the most complicated math I've ever done in a video before. If I made errors or miscalculations please let me know in the comments or message me! I want to know. Sources are listed below...

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    Videos explaining things. Mostly over topics like history, geography, economics and science.

    We believe that the world is a wonderfully fascinating place, and you can find wonder anywhere you look. That is what our videos attempt to convey.

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  • When a Grain of Sand Hits Earth at 100,000,000x Light Speed - Universe Sandbox 2

    14:54

    When a Grain of Sand Hits Earth at 100,000,000x Light Speed - Universe Sandbox 2
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    Universe Sandbox ² is a physics-based space simulator that allows you to create, destroy, and interact on an unimaginable scale.

    It merges real-time gravity, climate, collision, and material interactions to reveal the beauty of our universe and the fragility of our planet.

    Universe Sandbox ² includes the desktop version and a VR mode with support for the HTC Vive, Oculus Rift+Touch, and Windows Mixed Reality.
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    N-body simulation at almost any speed using Newtonian mechanics. Real science, real physics, no supercomputer required.
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    Start with a star, then add a planet. Spruce it up with moons, rings, comets, or even a black hole.
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    Watch sea ice grow and recede with the seasons because of the tilt of the Earth: change the tilt and change the seasons. Or move the Earth farther from the Sun and freeze the entire planet. Learn more...

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    Make a star evolve by cranking up its age or mass, then watch a supernova unfold.
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    Ride along with the Juno and New Horizons spacecraft, or view a total solar eclipse.
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  • Universe Size Comparison 3D

    5:08

    Planets in our Universe can get extremely large, but stars get even bigger. In this video we explore the sizes of moons, planets, stars, and even beyond, including black holes and even galaxies.
    Basically a comparison of the entire Universe.

    Support the channel on Patreon!


    All measurements represent diameter.

    Enjoy!

    Music:
    'Get Back Up' by Silent Partner

    Made with Blender 2.79

  • VFX Artist Reveals the True Scale of the Universe

    6:35

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  • How Big Is The Universe?

    3:50

    Carl Sagan told us that there are more stars in the universe than there are grains of sand on all of the Earth's beaches. At the same time, there are more H2O molecules in just 10 drops of water than there are stars.

    Ranging from the unimaginably small to the unimaginably big, the scale of the universe is mind-boggling. Watch to try to wrap your head around it.

    Science Insider tells you all you need to know about science: space, medicine, biotech, physiology, and more.

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  • Watch This Guy Build a Massive Solar System in the Desert | Short Film Showcase

    7:22

    The vastness of space is almost too mind-boggling for the human brain to comprehend. In order to accurately illustrate our place in the universe, one group of friends decided to build the first scale model of the solar system in seven miles of empty desert. Watch a beautiful representation of our universe come together in light and space in this extraordinary short film.
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    About Short Film Showcase:
    The Short Film Showcase spotlights exceptional short videos created by filmmakers from around the web and selected by National Geographic editors. We look for work that affirms National Geographic's belief in the power of science, exploration, and storytelling to change the world. The filmmakers created the content presented, and the opinions expressed are their own, not those of National Geographic Partners.

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    National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible.

    Credit: Wylie Overstreet and Alex Gorosh



    Watch This Guy Build a Massive Solar System in the Desert | Short Film Showcase


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  • Hitting Earth with a Grain of Sand Going 99.9% the Speed of Light

    11:31

    In this video I show you what would happen if the earth were to be hit by a grain of sand going 99.9% the speed of light. I talk about the physics of it and then I try bigger objects hitting earth at near light speeds.

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    Warning: DO NOT TRY—Seeing How Close I Can Get To a Drop of Neutrons


    *Any experiment you try is at YOUR OWN RISK. The Action Lab assumes no responsibility for any injury if you attempt anything you see in this video or on my channel.

  • How far away is the Nearest Star?

    5:08

    Distances in space are huge, but it's difficult to visualise just how far things are away, so I thought I'd have a go at showing how far away the nearest star to the Sun is, by creating a scale model, shrinking the Sun down to the size of a golf ball. The scale is roughly 33 billion:1.

    All distances shown are straight line distances from my start location just south of Manchester in England. The actual distance travelled is larger. The nearest star is actually quite some distance away! And this is just the nearest star - some of the visible stars are many hundreds of times further and the centre of our own galaxy is 7,000 times further away just for starters.

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  • Big Universe. Bigger God.

    7:25

    Take a journey from Earth to the edge of the observable universe—in seven unforgettable minutes. Spectacular computer animation will transport you 45 billion light years to discover glimpses of God’s creative power and divine attributes as revealed through the wonders of the cosmos he once spoke into existence. See more at

  • Fractals: a world in a grain of sand | Ben Weiss | TEDxVeniceBeach

    15:12

    Our lungs manage to pack the surface area of a tennis court into our ribcage. Our circulatory system crams 60,000 miles of branching blood cells and capillaries into our bodies. Single objects repeating patterns over and over and over at various scales, parts similar to the whole. These are just a couple of the examples of fractals in action presented to us in dazzling detail by mathematician and creator of Frax HD, Ben Weiss - who brilliantly bridges the gap between math and art to bring this concept to life. And what more, Weiss explains how viewing fractal imagery has the ability to positively affect the brain and make revelations about human perception and consciousness. For more, visit Ben is a computer graphics researcher at Google, with a focus on image processing and machine intelligence. He is also the principal developer of the app Frax, a tool to bring the beauty of interactive fractal geometry to a worldwide audience. Ben is a former competitive freediver, with a 7-minute breath-hold, and has been a member of the US Freediving Team in multiple world championships. His career has included stints at Apple, Microsoft, and MetaCreations, where in the 90’s he was the co-developer of the Kai’s Power Tools suite of graphics apps. He currently lives happily on the Venice Canals. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at

  • Cosmic Eye

    3:01

    This is the original landscape-format version of the short movie Cosmic Eye, designed by astrophysicist Danail Obreschkow. The movie zooms through all well-known scales of the universe from minuscule elementary particles out to the gigantic cosmic web. In doing so, it shows the ultimate size comparison in our universe. The video drew inspiration from a progression of increasingly accurate graphical representations of the scales of the universe, including the classical essay Cosmic View by Kees Boeke (1957), the short movie Cosmic Zoom by Eva Szasz (1968), and the legendary movie Powers of Ten by Charles and Ray Eames (1977). Cosmic Eye takes these earlier representations to the state-of-the-art by displaying real photographs obtained with modern detectors, telescopes, and microscopes. Other views are renderings of modern computer models. Smart vector-based blending techniques are used to create a seamless zoom.

    This 2018-version of Cosmic Eye contains improved graphics and minor technical corrections compared to the 2011-version in portrait format.

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    Donations are vital to develop, update and translate Cosmic Eye. Thank you for any support.

    All rights were obtained for third-party images and image-data:
    + Millennium Dark Matter simulation (V. Springel & Virgo Consortium)
    + 3D galaxy and star positions in the local universe (from
    + Synthetic rendering of the Milky Way (adopted from N. Rising)
    + Galaxy M51 (HST, NASA)
    + Oort cloud rendering (adopted from a BBC illustration)
    + Planet images (from NASA Voyager 2)
    + Satellite images by 2012 Google Maps, Europa Technologies, MapLink/Tele Atlas
    + Retina photography (C. Allison)
    + Electron microscopy of a leukocyte (J. Ehrman)
    + Microscopy of red blood cells (internet photos.net)
    + Synthetic DNA model (adopted from

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    Enter the Maze by Kevin MacLeod is licensed under a Creative Commons Attribution license (
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  • Are There More Grains of Sand Than Stars?

    5:12

    Are There More Grains of Sand Than Stars?

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    #Earth #Sun #Universe #Stars #Sand

  • ⭐️UNIVERSE Size COMPARISON ⭐️ EVERYTHING

    10:43

    Hello, this video is very special for the channel, it may be the video that cost the most to make, but it is also the symbol of the entire channel, comparing the universe is comparing everything, from the smallest to the largest. It was certainly a special challenge to make this video, I hope you enjoy the trip!

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  • From Earth to Multiverse

    6:12

    Star Size Comparison - The Scale of the Universe And the Multiverse.

    The Multi-Universe Cosmos

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    Channel: morn1415 ©

    Credit: 1:05

    Music: Vangelis - Alpha


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  • Size Comparison of the Universe 2018

    17:15

    Star T-shirts now available!

    From the Planck scale to the cosmic scale, the Size Comparison of the Universe will show you just how large our universe is! This is an update to my previous size comparison video published last year in 2017.

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    3. Savfk - Music: Odyssey by Savfk (copyright and royalty free dramatic, orchestral, intense, epic soundtrack music) -

    4. Lionel Schmitt: Epic Music - 1000 Ships Against The Wind (Big Orchestral Fantasy With Choir) -

    Image, song, video and thumbnail source(s):

    There are many improvements this year, the first true 4K video, the use of cameras in the video, masking, improved color depth and much more!

  • How Big is the Universe?

    4:17

    It has NO EDGE. And NO CENTER... or does it?

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    Thanks to Nima Doroud for contributions. Created by Henry Reich

  • Whats the Biggest Number That You Could Count To?

    12:23

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    Animations courtesy of Ryan Stevens, check out his channel here:

    What is the biggest number that we know of that the universe can actually contain inside of it? A googol, or a googolplex? And out of those numbers, could you actually ever count up to them? Like, what's the biggest number that you could theoretically count to if you devoted all of your time to it? Today we explore and discover the biggest number we know , the biggest numbers ever and the biggest number in the universe.

  • Our Milky Way Galaxy: How Big is Space?

    1:46

    When we talk about the enormity of the cosmos, it’s easy to toss out big numbers – but far more difficult to wrap our minds around just how large, how far, and how numerous celestial bodies really are. How big is our Milky Way Galaxy and how far away are exoplanets, the planets beyond our solar system? Read more: go.nasa.gov/2FTyhgH

    Credit: NASA/JPL-Caltech

  • How Big Is THe Universe? Earth Size as a Grain of Sand.

    51

    How Big Is THe Universe? Earth Size as a Grain of Sand.

  • More Stars Than Grains of Sand: A Universe of Truly Fantastic Numbers

    2:33

    Based in part upon David Blatner's book, Spectrums, this little film explores how there are more stars in the universe than grains of sand on earth. Yet, in just one grain of sand there are more atoms than all the stars combined in the cosmos. We truly live in a universe of fantastic numbers.

  • How Big is the Universe Compared to a Human!!!

    5:35

    From the smallest thing (Well, not exactly a 'thing' but a scale) in Universe (Planck Length) to the observable universe this size comparison of the universe will show you just how big our universe is. This animation somewhat compares the size of a human to that of the universe.

    The observable universe is a spherical region of the Universe comprising all matter that may be observed from Earth at the present time because light and other signals from these objects have had time to reach Earth since the beginning of the cosmological expansion. There are at least two trillion galaxies in the observable universe, containing more stars than all the grains of sand on planet Earth. Assuming the universe is isotropic, the distance to the edge of the observable universe is roughly the same in every direction. That is, the observable universe is a spherical volume (a ball) centered on the observer. Every location in the Universe has its own observable universe, which may or may not overlap with the one centered on Earth.

    Sources:
    Hubble Reveals Observable Universe Contains 10 Times More Galaxies Than Previously Thought

  • Are There More Grains of Sand Than Stars?

    3:46

    This question comes from Sheldon Grimshaw.

    I've heard that there are more stars in our Universe than there are grains of sand on all the beaches on Earth. Is this possible?

    Awesome question, and a great excuse to do some math.

    As we learned in a previous video, there are 100 to 400 billion stars in the Milky Way and more than 100 billion galaxies in the Universe - maybe as many as 500 billion.

    If you multiply stars by galaxies, at the low end, you get 10 billion billion stars, or 10 sextillion stars in the Universe - a 1 followed by 22 zeros.

    At the high end, it's 200 sextillion.

    These are mind bogglingly huge numbers.

    How do they compare to the number of grains of sand on the collective beaches of an entire planet?

    This type of sand measures about a half millimeter across.

    You could put 20 grains of sand packed in side-by-side to make a centimeter. 8000 grains in one cubic centimeter.

    If you took 10 sextillion grains of sand, put them into a ball, it would have a radius of 10.6 kilometers.

    And for the high end of our estimate, 200 sextillion, it would be 72 kilometers across.

    If we had a sphere bigger than the Earth, it would be an easy answer, but no such luck. This might be close.

    So, is there that much sand on all the beaches, everywhere, on this planet?

    You'd need to estimate the average volume of a sandy beach and the average amount of the world's coastlines which are beaches.

    I'm going to follow the estimates and calculations made by Dr. Jason Marshall, aka, the Math Dude.

    According to Jason, there about 700 trillion cubic meters of beach of Earth, and that works out to around 5 sextillion grains of sand.

    Jason reminds us that his math is a rough estimate, and he could be off by a factor of 2 either way. So it could be 2.5 sextillion or there could be 10 sextillion grains of sand on all the world's beaches.

    So, if the low end estimate for the number of stars matches the high end estimate for the number of grains of sand, it's the same.

    But more likely, there are 5 to 10 times more stars than there are grains of sand on all the world's beaches.

    So, there's your answer, Sheldon. For some back of the napkin math we can guess that there are more stars in our Universe than there are grains of sand on all the beaches of Earth.

    Oh, one more thing.

    Instead of grains of sand, what about atoms?

    How big is 10 sextillion atoms?

    How huge would something with that massive quantity of anything be?

    Pretty gigantic. Well, relatively at least. 10 sextillion of anything does sound like a whole lot.

    If you were to make a pile of that many atoms... guess how big it would be.

    It'd be about.... (gesture big then gesture small) 4 times smaller than a dust mite.

    Which means, a single grain of sand has more atoms than there are stars in the Universe.

  • How big is the UNIVERSE?

    3:18

    Episode 3: The universe is really, really big. If the Milky Way was the size of a grain of sand, the universe would be the size of a cathedral in comparison. So yeah, the universe is unimaginably huge, tremendously vast and full of mysteries.

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  • How many grains of sand are in the Sahara? | Zoo La La | Earth Unplugged

    4:13

    Have you ever wondered how many grains of sand make up the Sahara? Join Maddie Moate for some mind boggling calculations.

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  • HOW MANY STARS

    5:37

    The question is timeless. Pondered, throughout history, by human beings of every culture, age, and nationality: how many stars are there in the universe? This fascinating film explores worlds gigantic and microscopic to reveal answers that challenge our perceptions of creation. Travel with us through galaxies and grains of sand; molecules and atoms, to count the stars and marvel at all that God has made.

  • 5 Video how big is the universe grain of sand 2mins 14 sec

    2:15

  • The Universe in Grains of Sand

    2:37

  • How Many Grains Of Sand Fit In The Universe

    2:57

    Multi generational space travel is probably our future but it has some problems. But every problem has his own solutions. What are those solutions? I just made a video about it! NEW VIDEO:
    ^
    I
    I --~--
    How Many Grains Of Sand Fit In The Universe

    #universe
    #howmany
    #grainsofsand

    The universe is big and grains of sand are tiny! So how many grains of sand fit in the universe? This video is about that question! I start from small objects and then go bigger untill the universe! In your finger there fit 144,000 grains of sand! Grains of sand have different sizes but in this vid I say that grains of sand are 0.5 mm.

    I'm nerdish but I don't give a potato. I make videos about space, math, science and other cool stuff like that. I really enjoy making these videos! If you are interested in my channel click this link to my channel page:

    You can also subscribe! thanks so much to everyone who subscribed or will subscribe to my channel! I really hope I will ever have a big community around my channel. It really helps me if you subscribe. I mean I have 4 SUBSCRIBERS RIGHT NOW so yeah another one would make a huuuge difference! thanks for the support! SUBSCRIBE HERE:

    there are 2 trillion galaxies in the observable universe! that is a lot but what would that actually look like? I made a video about it! LINK TO VIDEO ABOUT 2 TRILLION GALAXIES:

    If you are interested in SPAAAAAAAAAAAAAAAA (sorry) AACE videos click this link to my space, the universe and astronomy playlist. LINK TO SPACE, THE UNIVERSE AND ASTRONOMY PLAYLIST:

    I'm trying to upload every 2 days and I didn't mess up yet.

    Thanks so much for watching! (: DISCLAIMER: I do not own any images I use in my videos.

  • The Size of the Universe in 4 min | How Big is it Compared to the Earth?

    4:25

    From a human perspective, the Earth is enormous. However, our planet pales in comparison to the scale of the universe, to a degree almost impossible to grasp. The size of the observable universe is about 3 novemdecillion times bigger than the size of the Earth.

    But, really, how vast is the universe?
    Let’s explore the limits of the cosmos...

    Hope you enjoy!

    ►Music :
    ♫ Alison - Space echo
    ♫ Delectatio - Promise me

    ►Other interesting videos about the size of the universe:

  • How a grain of sand changed my life: Jenny Natusch at TEDxLancasterU

    19:47

    As a freelance designer of children's wear, writer and producer of the TV Show Bare Necessities, property/technology business developer and marketing director, Jenny needed to slow down and get back to her creative roots. She is now an artist, sand-gazer and photographer. Jenny invariably has a slightly different way of looking at things; dedicated to linking passion with career, creativity with collaboration and relaxation with pure world beauty.

    Many people are star gazing and looking upwards but forgetting to look right under their noses. So what else might we be missing?

    In the spirit of ideas worth spreading, TEDx is a program of local, self-organized events that bring people together to share a TED-like experience. At a TEDx event, TEDTalks video and live speakers combine to spark deep discussion and connection in a small group. These local, self-organized events are branded TEDx, where x = independently organized TED event. The TED Conference provides general guidance for the TEDx program, but individual TEDx events are self-organized.* (*Subject to certain rules and regulations)

  • Grains of Sand

    10:37

    The size of the known universe has grown almost a million times larger in the last 100 years. The new space telescope is a testament to the limits of design and engineering, an extremely difficult project!

  • The Unfathomable Enormity of the Universe

    4:08

    The Unfathomable Enormity of the Universe.

    Quotes in this video:
    1. Somewhere, something incredible is waiting to be known. - Carl Sagan
    2. Meanwhile the Cosmos is rich beyond measure: the total number of stars in the universe is greater than all the grains of sand on all the beaches of the planet Earth. - Carl Sagan
    3. Even these stars, which seem so numerous, are, as sand, as dust, or less than dust, in the enormity of the space in which there is nothing. - Carl Sagan

    Graphics:
    NASA/ESA -
    SpaceEngine -

    Music:
    Linkin Park - Numb (Epic Cinematic Cover by Whitesand)


    #transcendence
    #paramountcy
    #immensity
    #multitude
    #vibrancy
    #precariousness
    #darkness
    #unendingmystery

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  • Universe Size Comparison 2020 | SenseOfScale

    10:13

    It was originally supposed to be higher quality, but nevertheless I present to you the grand Universe Size Comparison 2020!

    As a footnote, UY Scuti is no longer listed as the largest star with its current solar radius being at 755. Since the release of the video, the newest biggest star according to my source is a star called Stephenson 2-18.

  • Grains of Sand - Exploring Sedimentary Processes

    3:55

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    Using sieves to establish grain size profiles.

    (Part 3 of 4)

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  • How Many Atoms Make Up The Things Around Us?

    1:39

    Atoms are everywhere, you're made up of atoms, I'm made up of atoms and the ink on this whiteboard is made up of atoms. How many atoms make up people, planets, the solar system or even the universe?

    Science is awesome and understanding how things on earth and outside of earth work is a great knowledge to have. Join us to get great scientific videos which are easy to understand and will make you brighter!

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    Music: Wallpaper - Kevin MacLeod (incompetech.com)

  • How Big Is Planet Earth?

    1:51

    As a person living on Earth, the planet can feel pretty big. But when compared to the rest of the universe, Earth is actually really small. About 30 Earths could fit between our planet and the moon. And 1.3 million Earths could fit inside of the sun.

    Science Insider tells you all you need to know about science: space, medicine, biotech, physiology, and more.

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  • Archimedes Counts the Grains of Sand in the Universe | Great Dreamers

    3:53

    One of the greatest mathematicians of all time. Get taken on a journey of discovery with Archimedes.

    The series “Great Dreamers” recreates the life of outstanding individuals, pioneers and path breakers, such as Nicola Tesla (“Free Energy of Tesla”) and Konstantin Tsiolkovsky (“Tsiolkovsky’s Worlds of Miracle”).

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  • HOW BIG is a Star?

    3:56

    How big are stars? There are countless of stars in the whole universe, yet we only knew just one of them, the Sun. Know how stars can be so enormous that it's almost impossible to even imagine how huge they can be.

  • Are There More Stars In The Universe Than Grains Of Sand On Earth in Urdu / Hindi

    3:59

    کائنات میں تارے زیادہ یا ساحلوں پر ریت کے ذرے؟

    Are There More Stars In The Universe Than Grains Of Sand On Earth in Urdu / Hindi

  • How Big Is The Galaxy?

    4:05

    Our Galaxy is named the Milky Way and it is such a big galaxy that we cannot measure it in miles or kilometers, as the numbers would be mind boggling. So here is a short guide to galaxies, which come in many shapes and sizes and contain billions of stars.

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  • when you turn earth into a donut shaped planet

    15:25

    when you turn earth into a donut shaped planet
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  • KOTVA - UNIVERSE IN A GRAIN OF SAND

    5:35

    Music & inspiration: KOTVA - a tone horde . Composed by HARRI SUILAMO. Performed by ENSEMBLE CAPUT, conductor GUDMUNDUR OLI GUNNARSSON. Video: TIMO LÄHTEENMÄKI (1996). Thanks to: Mertsi Toivonen, Erkki Lähteenmäki, William Blake, Nuove Sincronie. © Timo Lähteenmäki 1996.

  • Portamento - A Grain Of Sand

    7:34

    Album: The Portal (2011)

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  • Were Just a Grain of Sand

    3:31

    Provided to YouTube by CDBaby

    We're Just a Grain of Sand · Wild Bill Emerson The Legendary

    Living Off the Land

    ℗ 2009 wild bill Emersom

    Released on: 2009-01-01

    Auto-generated by YouTube.

  • the scale of the universe

    5:07

    Ranging from the unimaginably small to the unimaginably big, the scale of the universe is mind-boggling. Watch to try to wrap your head around it.
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    ►Menu:
    0:37 - Ant
    0:53 - Human
    1:48 - Earth
    2:20 - The sun
    2:58 - The star Rigel
    4:28 - Milky Way Galaxy
    5:06 - Sloan Great Wall
    ▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰
    ♫Music:
    Lullaby by Tudor Anghelina is licensed under a Creative Commons Licence.


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  • Size Does Matter | National Geographic

    2:15

    The universe is really, really, really, really, really, really, really, really, really, really, really, really, REALLY big.
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    National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible.

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  • A Grain of Sand - By Dr. Gary Greenberg - Sandgrains.com

    1:35

    Video for A Grain of Sand - Nature's Secret Wonder
    The Amazing Microphotography of Dr. Gary Greenberg

    Every grain of sand is a jewel waiting to be discovered. That's what Dr. Gary Greenberg found when he first turned his microscope on beach sand. Gemlike minerals, colorful coral fragments, and delicate microscopic shells revealed that sand comprises much more than little brown rocks. Amazing microphotography showcases spectacular colors, shapes, and patterns. Join Dr. Greenberg as he explores the science and beauty of the sand grain. With this captivating volume, you will never look at a beach the same way again.

    Author and photographer Dr. Gary Greenberg is a visual artist who creatively combines art with science. He has a Ph.D. in biomedical research from University College London and holds 17 patents for high-definition 3-D light microscopes. Dr. Greenberg lives in Haiku, Hawaii.

    Foreword writer Stacy Keach is an actor renowned for his narration of scientific documentaries, particularly the NOVA series for the Public Broadcasting Service.

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