Originally posted by 0mage
im not talking about home telescopes.. but the extremely large ones at observatories. but it also to say and exaggerate the point that they are always
revamping calculations once offered as fact. a whole generation would be brought up being taught those figures in school and theyd be absolutely
false. yet they passed their final year exams.
i cant trust their calculations. i like definite information. so until they have such they should just be a picture taking and publishing
and in correction of exploding from the centre of the galaxy... i meant.. universe.. not galaxy. im just a bit tired of the frequent changes in
calculations that keep coming up.. tomorrow itll be 10 miles away again. i cant rely on it and i dont like to fill my brain with false information.
that is what's annoying.
edit on 14-1-2013 by 0mage because: (no reason given)
edit on 14-1-2013 by 0mage because: (no reason
Well, like many things in science, Cosmology
is a theoretical field of science. As such, many things
that are taught to students are theories only. Not "facts".
Facts are only those things that are quantifiable in such a way that it can be independently replicated with the same results by more that one person
(or group of people).
This is why if you do any reading on The Big Bang
, it is almost always referred to as: The Big Bang
, and is referred to as a "model".
Now some theories have evidence to help support them, and why one theory about something is more popular or considered to be the answer to something
than other theories.
For example: Radio telescopes show a back ground radiation that is 360 deg, spherically all around us over 13 billion light years away. This can be
directly observed by anyone with the equipment to do so. The theory is, this is the left over result of the Big Bang.
So there is an observed piece of evidence that fits with the theory.
However, let us say there is another theory: The Great Bunny Of All threw up, and what He threw up was all the matter in the universe that made the
stars and galaxies.
Now I could propose that theory. But I have little to no evidence at all to support it. So, generally speaking, most scientist are not going to pay
attention to it, unless I come up with some evidence that they also can observe on their own.
By the way, the Big Bang didn't happen at the "center of the universe". There was no center, because there was no universe prior to the Big Bang.
There was "nothing". No time. No space. So there was no "center" or anything.
As for "changing their measurements all the time":
Yep! Welcome to science! Especially astronomy, astrophysics and for sure with out a doubt, cosmology! As time goes by, we are constantly finding new
ways to measure things, giving us better measurements. We also sometimes find out we're wrong about something, so a new theory is introduced (or
another that has been around gains support).
Ask what the distance to the Andromeda Galaxy is. That figure has changed more times that I have fingers on both hands since I've been alive! 2.2
million light years....no, wait, 2.9 million light years....wait! 2.5 million light years.
Part of the problem is measuring things that are so very far away becomes more and more difficult to do when they are so very far away.
When I was a kid, it was thought that the universe was around 14 billion years old, but might be as old at 18 billion years. The age of the universe
had fluctuated back and forth many times.
Doesn't mean anyone is lying to you. It means that equipment, theories and new discoveries are happening as time moves on.