How Many Dimensions Does The Universe Have?

Dimensions are complicated, and wrapping your mind around how many there are can give you a headache. Join Trace as he explains everything you should know about them.



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What is a dimension, and how many are there?

http://science.howstuffworks.com/science-vs-myth/everyday-myths/dimension.htm

"As you’ve probably noticed, we live in a world defined by three spatial dimensions and one dimension of time."



Imagining Other Dimensions

http://www.pbs.org/wgbh/nova/physics/imagining-other-dimensions.html

"For most of us, or perhaps all of us, it’s impossible to imagine a world consisting of more than three spatial dimensions."



10 Dimensions

http://www.universetoday.com/48619/10-dimensions/

"We all consider dimensions in general terms such as another reality or how we perceive the environment around us."



How Many Dimensions Does the Universe Really Have?

http://www.pbs.org/wgbh/nova/blogs/physics/2014/04/how-many-dimensions-does-the-universe-really-have/

"An engineer, a mathematician and a physicist walk into a universe. How many dimensions do they find?"



Extra dimensions, gravitons, and tiny black holes

http://home.web.cern.ch/about/physics/extra-dimensions-gravitons-and-tiny-black-holes

"Why is gravity so much weaker than the other fundamental forces?"



Scientists suggest spacetime has no time dimension

http://phys.org/news/2011-04-scientists-spacetime-dimension.html

"The concept of time as a way to measure the duration of events is not only deeply intuitive, it also plays an important role in our mathematical descriptions of physical systems."



Theoretical physics: The origins of space and time

http://www.nature.com/news/theoretical-physics-the-origins-of-space-and-time-1.13613

"Many researchers believe that physics will not be complete until it can explain not just the behaviour of space and time, but where these entities come from."



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