Saturday 26 December 2015

What time is it now

As I sit here typing away at the centre of my own world with my belongings around me, communicating with you, some only a mile or two down the road others going to sleep on the other side of the globe.  I think what a magnificent opportunity it is to be in the master of my environment interacting with you and yours, each different, each deriving your own speciality.

I was trying to describe a couple of blogs ago the almost ridiculous observation that the atoms in my left and right hand could have come from different supernova exhibiting their colossal impact on their galaxy millions, even billions of light years ago.
Galaxies describe the collection of stars, millions of stars, such as our Milky Way in which our sun sits on the edge of the Galaxy.
Galaxies are now recognised to form clusters of galaxies and to be interactive with each other through gravity. These superclusters of galaxies are so massive that they produce the effect which Einstein predicted, the curvature of light in space due to the mass of the object and the gravitational force which bent the light as it passed the object and its the measurement of this curvature which allows calculations regarding the mass and therefore the weight of the Galaxy.
The calculation that takes in the observable light emitting from parts of the Galaxy reveals that at a proportion of 10 to 1, there is 'dark matter', non light emitting matter which predominates in the mass or weight calculation of the Galaxy.
What this dark matter is has yet to be determined. It is not the hydrogen helium and lithium, the light elements which were at the start of the Big Bang and which constitute the initial substance of everything we consider as having substance.
Gravitational lensing, the method used to detect the curvature of light in proximity to mass describes phenomena so huge, so difficult to comprehend.
The telescopes that locate these clusters of galaxies are discovering further clusters behind the ones we can observe.
Every spot of light on the image received is a Galaxy not a star. Each Galaxy contains 100 billion stars along with hundreds of billions of planets. The image, 5 billion years old,  was emitted 500 million years before our sun was formed and much of what we see has ceased to exist during the passage of time it took for the light to arrive.
So when I press 'send' and the electrons which make up the current on which this message is carried, sets off around the world, it puts into perspective our environment and no matter how narcissistic I am I could do with more star gazing before I become too despondent with my local environment.

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