2w33_ About dark matter

I researched some more things about dark matter and found a couple of photos which showing this ‘invisible’ matter in space. (science illustrator magazine, Athens 2007)

In astophysics and cosmology, dark matter is hypothetical matter of unknown composition that does not emit or reflect enough electromagnetic radiation to be observed directly, but whose presence can be inferred from gravitational effects on visible matter.

The space itself is energy. There cannot exist a place where there is no energy. The very fact that a volume exist (even when totally empty) is the manifestation of energy.

A required minimum of energy is needed for any volume of empty space to exist.

Dark matter is not space. Dark matter is simply matter, dust or even black holes floating around that we cannot observe. (Not reflecting or producing enough radiation to be seen)
Dark matter is calculated to be of certain amount, this due to motions of galaxies.

Dark energy is a quite different stuff. This energy is thaught to be the reason why the expansion of the universe is accelerating.

 

A computer simulation shows the expected distribution of dark matter in the universe. Coloured dots indicate galaxies, which appear to trace out the major features in the dark matter.

About Wittgenstein’s ”tractatus logicophilosophicus”

Wittgenstein replied that if the publishers wanted to pad out the book, they could add 12 blank pages at the end so the reader would have something to be angry at when they finished the book without being able to comprehend it!

One more example concerning the empty space and how void can be transformed into something useful full with importance 😉 I bought this book during summer break and I finally finished it.

Finally I have added a couple of images about a new video that I am working on . (see images on ”ideas about empty space project”) I call it ‘laser flies’ because last summer I filmed moths in the dark. I thought that it would be a good idea to use something else instead of moths ,which can give me the same outcome 😉 Next week I will add to the blog my thoughts concerning ‘sand explosion’ and ‘laser flies’ videos. I haven’t uploaded them yet. .. I will do it next week because I want to write some things about these videos(what is their relation with empty space etc) 😉

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~ by avos on November 28, 2007.

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