The Scale of the Universe | From Planck Length to Observable Universe

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2017-11-14に共有
The interactive version is available here apod.nasa.gov/apod/ap120312.html

Credits :
By Cary Huang
Technical support by Michael Huang
Copyright © Cary and Michael Huang (htwins.net/)
Music - "Frozen Star" by Kevin MacLeod (incompetech.com/)


A Short Science Film on same topic -    • Powers of Ten™ (1977)  

What does the universe look like on small scales? On large scales? Humanity is discovering that the universe is a very different place on every proportion that has been explored. For example, so far as we know, every tiny proton is exactly the same, but every huge galaxy is different. On more familiar scales, a small glass table top to a human is a vast plane of strange smoothness to a dust mite -- possibly speckled with cell boulders. Not all scale lengths are well explored -- what happens to the smallest mist droplets you sneeze, for example, is a topic of active research -- and possibly useful to know to help stop the spread of disease.


An amazing short film by NASA on same topic-    • Video  

How different does the universe look on small, medium, and large scales? The most famous short science film of its generation gives breathtaking comparisons. That film, Powers of Ten, originally created in the 1960s, has now been officially posted to YouTube and embedded above. Please click the above arrow to see the nine minute movie for yourself. From a picnic blanket near Chicago out past the Virgo Cluster of Galaxies, every ten seconds the film zooms out to show a square a factor of ten times larger on each side. The video then reverses, zooming back in a factor of ten every two seconds and ends up inside a single proton. The Powers of Ten sequence is actually based on the book Cosmic View by Kees Boeke in 1957, as is a similar but mostly animated film Cosmic Zoom that was also created in the late 1960s. The changing perspectives are so enthralling and educational that sections have been recreated using more modern computerized techniques, including the first few minutes of the movie Contact, and in a short digital video called The Known Universe created last year for the American Museum of Natural History. Ray and husband Charles Eames, the film's creators, were known as quite visionary spirits and even invented their own popular chair.

Another video you may like -    • The Known Universe by AMNH #datavisua...  

What would it look like to travel across the known universe? To help humanity visualize this, the American Museum of Natural History has produced a modern movie featuring many visual highlights of such a trip. The video starts in Earth's Himalayan Mountains and then dramatically zooms out, showing the orbits of Earth's satellites, the Sun, the Solar System, the extent of humanities first radio signals, the Milky Way Galaxy, galaxies nearby, distant galaxies, and quasars. As the distant surface of the microwave background is finally reached, radiation is depicted that was emitted billions of light years away and less than one million years after the Big Bang. Frequently using the Digital Universe Atlas, every object in the video has been rendered to scale given the best scientific research in 2009, when the video was produced. The film has similarities to the famous Powers of Ten video that has been a favorite of many space enthusiasts for a generation.

コメント (21)
  • Probably a fact: were closer to the size of the observable universe than the planck length
  • @Noobelix
    6 seconds in and i've already lost comprehension of how TINY that is
  • If the observable universe was scaled down to 1 atom across, an atom would be somewhere in the range of the Planck length.
  • @soap7666
    This is cool and everything... But now I'm just terrified of Japanese spider crabs.
  • ive never looked up so much stuff in a short amount of time before like all the small stuff all the way up to the galaxys and let me tell you space makes a great desktop background
  • Observable universe isnt even as bis as the WHOLE universe. The observable universe is the only thing we can see and i can only imagine the things beyond that we cannot see :(.
  • Even though it’s a basic thought, it’s cool that Minecraft gives each of its players a Neptune sized pallet to express themselves
  • when you pause the video longer than you watch it:
  • Puts our minds right at the center of the scale. (Credit to Vsauce Micheal.)
  • In 70s I read a science book, the largest known that time was just cluster of few galaxies. In 100 years we might found more than this "observable universe" limit.
  • This video proof that Human is closer to the size of the Universe
  • Planck Epoch Planck Time Planck Length Planck Scale 1) Is 5.39 × 10^-44 seconds equal to 1.62 × 10^-35 meters 2) 5.39× 10^-44 seconds is the time it takes for a photon to travel a distance equal to the Planck length (1.62 × 10^-35 m). 3) Is the Planck epoch the same as the Planck time or the Planck length? 4) What is planck scale 5) Planck scale starting from which time and end with where
  • So, you’re telling me that the Minecraft World is actually bigger than the Earth itself? Damn...