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How the Universe Works - Blow your Mind of the Universe Part 11 - Space Discovery Documentary

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How the Universe Works - From The Big Bang To The Present Day - Space Discovery Documentary

How the Universe Works - From The Big Bang To The Present Day - Space Discovery Documentary
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How the Universe Works | Black Hole And High Energy Universe - Space Discovery Documentary

How the Universe Works - National Geographic The Universe - Space Discovery Documentary

How the Universe Works - Dark Future Of The Sun - Space Discovery Documentary

How the Universe Works Is the Universe Infinite Space Discovery Documentary

Explore the biggest question of all. How far do the stars stretch out into space? And what's beyond them? In modern times, we built giant telescopes that have allowed us to cast our gaze deep into the universe. Astronomers have been able to look back to near the time of its birth. They've reconstructed the course of cosmic history in astonishing detail.

From intensive computer modeling, and myriad close observations, they've uncovered important clues to its ongoing evolution. Many now conclude that what we can see, the stars and galaxies that stretch out to the limits of our vision, represent only a small fraction of all there is.

Does the universe go on forever? Where do we fit within it? And how would the great thinkers have wrapped their brains around the far-out ideas on today's cutting edge?

For those who find infinity hard to grasp, even troubling, you're not alone. It's a concept that has long tormented even the best minds.

Over two thousand years ago, the Greek mathematician Pythagoras and his followers saw numerical relationships as the key to understanding the world around them.

But in their investigation of geometric shapes, they discovered that some important ratios could not be expressed in simple numbers.

Take the circumference of a circle to its diameter, called Pi.

Computer scientists recently calculated Pi to 5 trillion digits, confirming what the Greeks learned: there are no repeating patterns and no ending in sight.

The discovery of the so-called irrational numbers like Pi was so disturbing, legend has it, that one member of the Pythagorian cult, Hippassus, was drowned at sea for divulging their existence.

A century later, the philosopher Zeno brought infinity into the open with a series of paradoxes: situations that are true, but strongly counter-intuitive.

In this modern update of one of Zeno's paradoxes, say you have arrived at an intersection. But you are only allowed to cross the street in increments of half the distance to the other side. So to cross this finite distance, you must take an infinite number of steps.

In math today, it's a given that you can subdivide any length an infinite number of times, or find an infinity of points along a line.

What made the idea of infinity so troubling to the Greeks is that it clashed with their goal of using numbers to explain the workings of the real world.

To the philosopher Aristotle, a century after Zeno, infinity evoked the formless chaos from which the world was thought to have emerged: a primordial state with no natural laws or limits, devoid of all form and content.

But if the universe is finite, what would happen if a warrior traveled to the edge and tossed a spear? Where would it go?

It would not fly off on an infinite journey, Aristotle said. Rather, it would join the motion of the stars in a crystalline sphere that encircled the Earth. To preserve the idea of a limited universe, Aristotle would craft an historic distinction.

On the one hand, Aristotle pointed to the irrational numbers such as Pi. Each new calculation results in an additional digit, but the final, final number in the string can never be specified. So Aristotle called it potentially infinite.

Then there's the actually infinite, like the total number of points or subdivisions along a line. It's literally uncountable. Aristotle reserved the status of actually infinite for the so-called prime mover that created the world and is beyond our capacity to understand. This became the basis for what's called the Cosmological, or First Cause, argument for the existence of God.
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How the Universe Works - Blow your Mind of the Universe Part 8 - Space Discovery Documentary

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Most Powerful Forces In The Universe - Space Discovery Documentary

All across the immense reaches of time and space, energy is being exchanged, transferred, released, in a great cosmic pinball game we call our universe.

How does energy stitch the cosmos together, and how do we fit within it? We now climb the power scales of the universe, from atoms, nearly frozen to stillness, to Earth's largest explosions. From stars, colliding, exploding, to distant realms so strange and violent they challenge our imaginations. Where will we find the most powerful objects in the universe?

Today, energy is very much on our minds as we search for ways to power our civilization and serve the needs of our citizens. But what is energy? Where does it come from? And where do we stand within the great power streams that shape time and space?

Energy comes from a Greek word for activity or working. In physics, it's simply the property or the state of anything in our universe that allows it to do work. Whether it's thermal, kinetic, electro-magnetic, chemical, or gravitational.

The 19th century German scientist Hermann von Helmholtz found that all forms of energy are equivalent, that one form can be transformed into any other. The laws of physics say that in a closed system - such as our universe - energy is conserved. It may be converted, concentrated, or dissipated, but it's never lost.

James Prescott Joule built an apparatus that demonstrated this principle. It had a weight that descended into water and caused a paddle to rotate. He showed that the gravitational energy lost by the weight is equivalent to heat gained by the water from friction with the paddle. That led to one of several basic energy yardsticks, called a joule. It's the amount needed to lift an apple weighing 100 grams one meter against the pull of Earth's gravity.

In case you were wondering, it takes about one hundred joules to send a tweet, so tweeted a tech from Twitter. The metabolism of an average sized person, going about their day, generates about 100 joules a second, or 100 watts, the equivalent of a 100-watt light bulb.

In vigorous exercise, the power output of the body goes up by a factor of ten, one order of magnitude, to around a thousand joules per second, or a thousand watts. In a series of leaps, by additional factors of ten, we can explore the full energy spectrum of the universe.
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Mysteries of the Universe - The First Moment Of Time - Space Discovery Documentary

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In popular parlance the big bang has two meanings. First, big bang cosmology is the hypothesis that our universe has been expanding for 13.7 billion years from an extremely hot and dense primordial state-more extreme than the centre of a star or indeed anywhere now existing. This I have no quarrel with-it is established scientific fact which has been elaborated into a detailed story which narrates the expansion of the universe from an extremely uniform and dense hot plasma to the beautifully varied and complex world that is our home. We have detailed theories which pass numerous observational tests which explain the origins of all the structures we see from the elements to galaxies, stars, planets and the molecular building blocks of life itself. As in any good scientific theory there are questions still to be answered, such as the precise nature of the dark matter and dark energy which are prominent actors in the story, or the very interesting question of whether there was a very early phase of inflationary exponential expansion, but these do not suggest the basic picture could be wrong.

How the Universe Works - The Search For a Second Earth

The Search For a Second Earth by The Science Channel. Buy How the Universe Works series on Discovery Store:

➡ American DocStation facebook page:


⚠ Video information:
Serie: How the Universe Works: Season 3
Episode: 9
Network: Discovery Channel, The Science Channel
Narrator: Mike Rowe
Release date: 2014
Genre: Documentary

⚠ Video settings:
Dimension: 1280x720
Bitrate: 3500
FPS: 30
Audio: 160/48kHz

➡ American DocStation facebook group:


➡ The Science Channel official website:


➡ Other links:


This video is meant for entertainment and educational purposes. The Science Channel/Discovery Channel is the developer and publisher of this documentary for the purpose of copyright. All rights reserved.
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How the Universe Works National Geographic The Universe Space Discovery Documentary

How the Universe Works is a documentary science television series that originally aired on the Discovery Channel in 2010. The first, fourth, fifth and sixth seasons were narrated by Mike Rowe[1] and the second and third by Erik Todd Dellums.[2] The first season, broadcast from April 25 to May 24, 2010, was released on Blu-ray on February 28, 2012.[3] Since its second season, consisting of eight episodes broadcast between July 11 and August 29, 2012, the show has aired on The Science Channel.[4] The third season aired between July 9 and September 3, 2014.[5] The fourth season premiered on July 14, 2015, as part of the Science Channel's Space Week, in honor of New Horizons′ flyby of Pluto that day; the season ran through September 1, 2015. The show′s fifth season aired from November 22, 2016, through February 7, 2017. The sixth season premiered on January 9, 2018.

How the Universe Works - Mysteries Of Our Place In The Milky Way- Space Discovery Documentary

How the Universe Works - Mysteries Of Our Place In The Milky Way- Space Discovery Documentary

How the Universe Works - DARK FUTURE OF THE SUN - Space Discovery Documentary

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Our Sun has served Earth well for almost five billion years. It’s bathed us with heat and energy. But like humans, our home star is mortal. In five billion years, it will stop nurturing its planetary offspring. The aging star will bloat out beyond the orbit of our planet incinerating all living things–including humans if we’re still around.

Scientists Find 'FIRST PROOF' of a Parallel Universe!

The first evidence of the multiverse has supposedly been found in the past week. Scientists believe that the cold spots found in space could actually be colliding universes.

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A Superb Film About Our Universe and Modern Theories

Nominated for an Academy Award, this 36-minute IMAX production offers a state of the art, computer generated journey through the universe, and tries to pinpoint the role of human beings cohabitating within its vastness.

Among the topics included are a variety of the greatest scientific theories known to exist - some of which had never before been visualized on film - as well as a guided tour through the cosmos and solar system, and a look at the nature of black holes and exploding supernovas.

Journey To The Edge Of The Universe National Geographic, 720p

Egde of Space, A Journey to the edge of the Universe.

A National Geographic Documentary from 2008 in 720p [HD] This is a subject that I really enjoy to watch documentaries of, and I wanted to share this for educational purpose. I think its a extremely interesting subject that can really get your brain working.
The Documentary is of a pretty good quality and I really hope that atleast some people will find this to be of great use to them. And that you might learn something new.

The thumbnail photo used if the same that is used by National Geographic. Its a picture taken with the Hubble Space Telescope and its called: V838 Mon (Light Echo) so it is actually a magnificent real thing.
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The Birth of New Galaxy Documentary - The Birth and Formation of Galaxies

Earlier in this century, Edwin Hubble's observations led to the discovery that ours is only one of many billions of galaxies that dot the universe with each galaxy home to billions of stars. Some, like the Milky Way, are flat disks with arcing spiral arms and regions of dense interstellar gas, called nebulae, which are active sites of star formation. Yet others are ellipse-shaped agglomerations of mature stars, virtually devoid of interstellar gas or dust.

How the Universe Works - National Geographic The Universe - Space Discovery Documentary

How the Universe Works - National Geographic The Universe - Space Discovery Documentary

The True Nature Of Time - New Documentary

The True Nature Of Time - New Documentary 2016
Theories of science have ignored time… until now. A new idea reveals how it created the Universe – and you, writes Robert Matthews.

Time: it rules our lives, and we all wish we had more of it. Businesses make money out of it, and scientists can measure it with astonishing accuracy. Earlier this year, American researchers unveiled an atomic clock accurate to better than one second since the Big Bang 14 billion years ago.

But what, exactly, is time? Despite its familiarity, its ineffability has defied even the greatest thinkers. Over 1,600 years ago the philosopher Augustine of Hippo admitted defeat with words that still resonate: “If no-one asks me, I know what it is. If I wish to explain it to him who asks, I do not know.”



Yet according to theoretical physicist Lee Smolin, the time has come to grapple with this ancient conundrum: “Understanding the nature of time is the single most important problem facing science,” he says.

As one of the founders of the Perimeter Institute for Theoretical Physics in Ontario, Canada, which specialises in tackling fundamental questions in physics, Professor Smolin has spent more time pondering deep questions than most. So why does he think the nature of time is so important? Because, says Smolin, it is central to the success of attempts to understand reality itself.

To most people, this may sound a bit overblown. Since reality in all its forms, from the Big Bang to the Sunday roast, depends on time, isn’t it obvious that we should take time seriously? And didn’t scientists sort out its mysteries centuries ago?
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A Mysterious Object Punched a Hole in the Milky Way, Scientists Are Confused

Space is full of mysteries that have remained unsolved for centuries. But recently, the cosmos has baffled the world with a new, scary abnormality. Apparently, something is tearing holes in the Milky Way, the galaxy that contains our Solar System! 😮 What if the hole in the Milky Way was torn by a supermassive black hole like the one that dwells in the center of our galaxy? If it was, it’d be a pretty scary scenario.

If these two black holes got too close, they wouldn't be able to escape each other's gravity, and a collision might be inevitable. And it would be an extremely violent event. But the thing is that the telescopes failed to find the source of the damage. So what could this unseen bullet be? Scientists have several theories.

Other videos you might like:
Stephen Hawking’s 7 Predictions of Earth’s Demise in the Next 200 Years
13 Scariest Theories That'll Make Your Blood Run Cold
What If The Sun Went Out for Just One Day

TIMESTAMPS:
The gap in the stellar stream 0:29
Is it a stray star? 1:39
Or is it a supermassive black hole? 1:59
And then what? 2:29
What baffles astronomers 3:35
What if it was dark matter that harmed our galaxy? 4:48
The intruder might be hiding somewhere in the galaxy 6:12
The ghost galaxy 7:10

#outerspace #milkyway #blackhole

Music by Epidemic Sound

SUMMARY:
- This year, Harvard scientist Dr. Ana Bonaca noticed a weird disturbance in our galaxy's stellar streams. A stellar stream is a line of stars that are moving together through galaxies.
- One day, Dr. Bonaca noticed a gap in the stream, and this gap had a strange ragged edge.
- One theory suggests that the intruder is a stray star. However, the hole is too enormous for this idea to sound plausible.
- Luckily for us, there aren’t any supermassive black holes in the vicinity, so this theory fails to explain the mysterious bullet-hole phenomenon.
- Naturally, astronomers have continued their observations. But what baffles them is that there’s no large object made from ordinary, light-reflecting matter moving away from the bullet-hole.
- What if it was dark matter that harmed our galaxy, and what if it reached Earth? Unlike a stream of regular matter, dark matter wouldn't see the Earth as an obstacle. It would just pass through. But that's not the most amazing part!
- However, Dr. Bonaca still doesn't rule out the possibility that the intruder is a luminous object that, after tearing a hole in the Milky Way, is hiding somewhere in the galaxy.
- The intruder could’ve been moving at an incredibly high speed, and wouldn’t have to be very massive to tear a hole in the stellar stream.
- The edge of the galaxy can even contain traces of a ghost galaxy - one that's older than our Milky Way!
- Curiously, the astronomers who discovered the ghost galaxy, which is a satellite galaxy of the Milky Way, can’t explain its origin and nature. Named Ant 2, the galaxy was dubbed ghost because it's weirdly dim.

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Here's the Most Dangerous Thing in the Universe

Are you afraid of alien invasions or giant meteors rushing toward Earth? Oh, forget about them! There’s something much more dangerous lurking in space, and it’s called strange matter. While people don't know much about it, experts are sure that under particular conditions, this stuff would be able to eat our planet alive!

Imagine a jar of honey that suddenly goes nuts and decides to consume everything around: the table, plates, your kitchen, you, the whole galaxy! That's exactly what may happen if the strange matter was left to roam on its own. But would there be a way to stop all this from happening?

Other videos you might like:
The Bermuda Triangle Mystery Has Been Solved
The Great Pyramid Mystery Has Finally Been Solved
How Deep Can You Possibly Dig?

TIMESTAMPS:
What's so unique about neutron stars? 0:35
How just one teaspoon can weight 10 million tons 1:31
Strange quarks. What is it? 2:34
Strange matter may be... contagious! 4:01
Is it really so dangerous? (Oh, yeah!) 5:04
Could we stop it? 5:49
How to avoid becoming spaghetti 6:46
What physicists say 7:48

#space #blackhole #strangemater

Preview photo credit:
Cartoon fantastic planet, worlds asteroid set. cosmic, alien space element for game: Designed by vectorpouch/Freepik,
Animation is created by Bright Side.

Music by Epidemic Sound

SUMMARY:
- Imagine this: a super powerful and massive star is reaching the end of its life. If the star had been massive enough, it’ll produce a black hole. But if it wasn't that big, a neutron star will appear in its place.
- Scientists say that one day these neutrons can get tired of holding all that weight, and the structure keeping the entire thing together will collapse. This leads to the appearance of a quark star.
- The pressure inside a quark star is getting stronger. As a result, things called “strange quarks” can appear in its core. They’ve been dubbed “strange” because, well, they don’t behave like normal quarks.
- But strange matter – oh, that's a bundle of chaos! Here’s where the “strange” part comes in. Its quarks have no boundaries – they just run totally amok wherever and however they want.
- When two neutron stars collide or when a neutron star crashes into a black hole, these strangelets break free. Sadly, a strangelet wouldn't care whether the object it's encountered is a star or a planet full of life!
- To get rid of strange matter, the only thing we could do is toss it into a black hole. But this escape plan raises all kinds of questions itself.
- But as soon as you get to the black hole’s edge, aka the event horizon, you won't be able to turn back because it’s the point of no return.
- Everything that approaches a black hole gets broken down into individual atoms. And we become long thin pasta.
- At this point, strange matter is just a theory that hasn't been confirmed yet. Physicists have considered creating strange matter in a particle accelerator. Luckily, they later came to the conclusion that it's impossible to do since particle accelerators get so hot that they’d immediately melt any appearing strangelets.

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A Journey to the End of the Universe

Could humans ever travel to other galaxies within their lifetime? The immense scale of the Universe seems to prohibit such voyages, after all the nearest galaxy is so far away that it takes light itself - the fastest thing in the Universe - 2.5 million years to complete the trip. Remarkably, there is a trick that might allow humans to accomplish this feat - join us today as we step onboard the constantly accelerating spaceship!

Written and presented by Professor David Kipping.

Chapters
0:00 - Prologue
2:57 - A Journey to Alpha Centauri
11:27 - Returning from Distant Shores
21:12 - Onward to the End

Further reading and resources:

► Lee, J. & Cleaver, G., 2015, The Relativistic Blackbody Spectrum in Inertial and Non-Inertial Reference Frames:
► Yurtsever, U. & Wilkinson, S. 2015, Limits and Signatures of Relativistic Flight:
► Margalef-Bentabol, B., Margalef-Bentabol, J., Cepa, J., 2013, Evolution of the Cosmological Horizons in a Concordance Universe:
► Columbia University Department of Astronomy:
► Cool Worlds Lab website:

Music is largely by Chris Zabriskie ( and is licensed under a Creative Commons Attribution license ( in order of appearance;
► Cylinder Five (
► Music from Neptune Flux, The Oceans Continue to Rise
► Music from Neptune Flux, We Were Never Meant to Live Here
► Cylinder Two (
► Cylinder Four (
► Cylinder Eight (
► It's Always Darkest Before the Dawn by Hill, licensed through SoundStripe.com
► Cylinder Two (
► It's Always Darkest Before the Dawn by Hill, licensed through SoundStripe.com

Video materials used:

► Intro/outro video by ESO/Mark Swinbank, Institute for Computational Cosmology, Durham University, Flying through the MUSE view of the Hubble Ultra Deep Field:
► Voyager 2 footage courtesy NASA JPL:
► Nautilus X videos from f r a g o m a t i k: and
► Ship passing Moon & Mars taken from Beer from Mars by MoonMan Pictures:
► A Journey to Alpha Centauri video by ESO./L. Calçada/Nick Risinger (skysurvey.org):
► Relativistic travel through a lattice by Ute Kraus:
► Earth time lapse footage taken onboard the International Space Station by NASA's Earth Science & Remote Sensing Unit
► Fly-through space footage from Space.com:
► A Flight Through the Universe, by the Sloan Digital Sky Survey, Miguel Aragon & Alex Szalay (Johns Hopkins), Mark Subbarao (Adler Planetarium):
► Galaxy spinning animation by spacetelescope.org:
► Expanding universe animation by EposChronicles:

Films clips used:
► Agora (2009)
► Star Trek (1966 - 1969)
► Star Trek: The Motion Picture (1979)
► Interstellar (2014)
► The Expanse (2015 - present)
► 2001: A Space Odyssey (1968)
► The Martian (2015)
► Passengers (2016)
► Alien (1979)
► Flame over India (1959)
► Star Trek: First Contact (1996)
► Prometheus (2012)
► Alien: Covenant (2017)
► Star Trek: The Next Generation (1987 - 1994)
► Planet Earth (2006)
► Elysium (2013)
► Alien: Resurrection (1997)
► Avengers: Endgame (2019)
► What Dreams May Come (1998)

Special thanks to YouTuber Madd End for this fantastic artist's impression of the halo drive: Thumbnail image by Hazan:

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#EndOfTheUniverse #ConstantAcceleration #CoolWorlds #InterstellarTravel

The Core of The Earth - Documentary HD

Scientists believe that deep down inside the Earth, there’s a huge ball of liquid and solid iron. This is the Earth’s core, and it protects us from the dangerous radiation of space.

When the Earth first formed, 4.6 billion years ago, it was a hot ball of molten rock and metal. And since it was mostly liquid, heavier elements like iron and nickel were able to sink down into the planet and accumulate at the core. The core is believed to have two parts: a solid inner core, with a radius of 1,220 km, and then a liquid outer core that extends to a radius of 3,400 km. The core is thought to be 80% iron, as well as nickel and other dense elements like gold, platinum, and uranium.

The inner core is solid, but the outer core is a hot liquid. Scientists think that movements of metal, like currents in the oceans, create the magnetic field that surrounds the Earth. This magnetic field extends out from the Earth for thousands of kilometers, and redirects the solar wind blowing from the Sun. Without this magnetic field, the solar wind would blow away the lightest parts of our atmosphere, and make our environment more like cold, dead Mars.

Although the Earth’s crust is cool, the inside of the Earth is hot. The mantle is only about 30 km beneath our feet, and it’s hot enough to melt rock. At the core of the Earth, temperatures are thought to rise to 3,000 to 5,000 Kelvin.

Since the core is thousands of kilometers beneath our feet, how can scientists know anything about it? One way is to just calculate. The average density of the Earth is 5.5 grams per cubic cm. The Earth’s surface is made of less dense materials, so the inside must have something much denser than rock. The second part is through seismology. When earthquakes rock the surface of the Earth, the planet rings like a bell, and the shockwaves pass through the center of the Earth. Monitoring stations around the planet detect how the waves bounce, and scientists are able to use this to probe the interior of the Earth.

Stephen Hawking Claimed Something That Amazes the World

TechZone ►

Do you know who Stephen Hawking is? During his life, this outstanding scientist and science popularizer made many discoveries and truly bold assumptions about the Universe. At the age of 20 Hawking began to show signs of a deadly disease: amyotrophic lateral sclerosis. After discovering this condition, doctors thought the scientist wouldn't live more than two and a half years, but he was one tough lucky bastard. Instead of sinking into despair, Hawking set himself an amazing goal: to fully understand the universe. He was really stubborn at trying to achieve this goal throughout his life. Having lost the ability to walk and even speak, he continued to travel around the world, he met with a variety of people, he even appeared on the screen, and, of course, he never stopped his researches for a day. On March 14th, 2018, Steven Hawking passed away, but his scientific theories will keep intriguing the humanity for several decades. In today's video, we are gonna explain some of his most amazing theories

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