Size Observable facts
While investigating facts about Size Observable Universe and Angular Screen Size Observable, I found out little known, but curios details like:
About Graham's number. This is a finite number so large that you couldn't write it out even if the numbers you used were subatomic in size and you used the whole observable universe as a canvas. But we know it ends in a seven.
how do we know the size of the observable universe?
Humans are closer to the size of the observable universe than they are to the smallest unit of measure (Planck length)
What is the size of the observable universe today?
In my opinion, it is useful to put together a list of the most interesting details from trusted sources that I've come across answering what is the size of observable. Here are 33 of the best facts about Smallest Size Observable and Size Of Observable Universe In Light Years I managed to collect.
what is the size of the observable universe?
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If the Planck length is the smallest possible thing, and the observable universe is the largest possible thing, then an object which would roughly sit in the middle of these two sizes would strangely be.... an adult human body.
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Not only does it snow on Mars in the form of Carbon Dioxide, but the snowflakes are only about the size of a human red blood cell. To a human observer the snow would look more like fog.
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The size of the entire universe could actually be smaller than the size of the observable universe, with many seemingly different galaxies in the observable universe actually being the same galaxy at different points in time
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If the Earth were the size of the nucleus of a hydrogen atom, the observable universe would have a diameter of 165.8km in comparison
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The size of the real universe is 250 times that of the observable universe
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"39 or 40" decimals of pi are enough to calculate the circumference of the observable universe within the size of the simplest known atom.
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It was at St Helena that he observed a transit of Mercury and realized that a transit of Venus could be used to determine the absolute size of the solar system.
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The 16 windows at the observation room are 7"x 27" in size. They are small because larger windows could not withstand the pressure at the top of the structure. The observation room is 7"2"x65".
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On April 26, 2016, astronomers announced the discovery of a moon that is orbiting Makemake using observations from the Hubble Space Telescope taken in April 2015. It was given the provisional name S/2015. Scientists use satellites to estimate the size of an object's mass, so now this will help lead scientists to estimate its mass.
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Near M87 is a collection of galaxies arrayed in a pair of chain-like structures called Markarian's Chain. These structures are visible to amateur observers with good-sized telescopes.
Why does the observable universe have a finite size?
You can easily fact check why is there a limit to the size of the observable universe quizlet by examining the linked well-known sources.
While its sample sizes have been too small to definitively observe, bohrium is expected to behave like its group members and form a similar +7 state.
It can be difficult to identify without close examination and requires breaking off a small piece to observe the grain size. Scraping the surface with a knife blade or nail will dislodge tiny silt grains instead of dislodging sand grains.
There is a newly discovered planet that is 1/4th the size of its star, making it the smallest difference between a planet and star yet observed. - source
The Dobsonian telescope design is revolutionary due to the sheer size it made available to amateur astronomers. Whereas the amateur astronomer of the 1970s, 1980s did not explore much beyond the Messier, the amateur astronomer today can observe deep objects that only professional astronomers saw
If you had a 1mm thick sheet of paper large enough that you could fold it 100 times its thickness would be greater than the size of the observable universe. - source
What is size of observable universe?
To have a chance of grasping the size of the theorised 'string' in string theory, you'd have to imagine that if an atom was expanded to the size of the observable universe, the string would be the size of a tree. (analogy taken from 'through the wormhole)
How to calculate the size of the observable universe?
The entire universe’s size is at least 10^23 times larger than the size of the observable universe.
'pupillary contagion' is a phenomenon where the size of your pupil changes to match the pupil size of a person whose face you are observing.
It is misleading to visualize the Big Bang by comparing its size to everyday objects. When the size of the universe at Big Bang is described, it refers to the size of the observable universe, and not the entire universe
Quantum Foam measured at Planck length is comparable in size to a .1mm dot as that dot is to the entire observable universe
A Planck length is SMALL Imagine the smallest particle you could see with the naked eye (about 0.1mm across) expand to the size of the observable universe. At this scale, a Planck length... would be roughly the size of a particle 0.1mm across.
