Think I am just thinking.

Words are but thoughts made visible.

Time and Space?

  As lay in bed the other night, after a day long consumption of at least one full pot of coffee, I found sleep totally evading me.  Not being one to try something as arcane as counting sheep, I instead entered into other forms of mind exercises in an attempt to find the Zzzzzz’s which were eluding me.

   Having spent a few evenings browsing Hubble images on the Web, things started to make less sense then normal.  If Hubble is able to capture an image from which the light originated over 13 Billion years ago, which is closing in on the time of the big bang, a thought occurred to me. 

   First some assumptions:

    1.  The universe is expanding outward away from the source of the big bang.

    2.  Our Milky Way is at least half to three quarters of the way, away from the big bang source.

     3.  We are in the Milky Way, so we are also around 3/4 of the way toward the edge of the universe.

    So, if we are this far away from the source of the big bang, the Big Bang has to be in one direction away from us.  But, as the Hubble images have shown, no matter which way we point Hubble, the images look the same.  In other words, we can see over 13 Billion light years in every direction we look.  Shouldn’t the universe be shorter in one direction over the other?

    So this would mean that space is not uniform, and thus must have curvature to it.  But what form or shape this curvature is in the shape of, has yet to be explained.  Perhaps space is compressed in one direction and stretched in another, but to us, due to light speed limitations appears to more uniform than it is.  Perhaps also, the effects of the the first moments of the Big Bang, which having an expansion speed faster than the speed of light has impact?   After all, if a Black Hole can pull light into it with effects we do not fully understand, then perhaps expansion exceeding the speed of light would also have impacts beyond what we would normally be expected.

   So I managed to arrive at absolutely zero answers, but I did fall to sleep with something interesting on my mind.

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June 3, 2009 Posted by | Exercise, Science, Space, thinking | , , | 1 Comment

NASA Live

 

If you haven’t ever watched a NASA mission live on TV, it’s likely because television stations do not seem to think it is Ad worthy.  Television stations need to sell ad’s if they are to make money.  NASA on the other hand can broadcast a mission via the Web, and no advertisements are required.  After all, it is tax money that pays for the mission.  So why not take advantage of your tax money and watch a Live NASA Mission.  I know I am.

Click to link below to see NASA TV.

http://www.nasa.gov/multimedia/nasatv/index.html

May 16, 2009 Posted by | Science, Space | , | Leave a comment

Looking back into Time.

   Once again NASA has launched a space shuttle back into space to perform life extending service to our own public “Time Machine” the Hubble.   If you have not yet logged onto http://hubblesite.org/, you really need to check it out.  Click on the Galley tab to view into the eyes of the earths best time-machine. 

   The photons of light the Hubble Telescope captures originated as far back in time as over 12.7 Billion years ago.  So we may only be able to go backward in time, but “Wow” what a backward glance it is.  The job of getting your mind around the fact that we are able to see light that is over 12 billion years old, is just as difficult as trying to start to grasp the distances being observed.  Light travels at a speed of 186,000 miles every second.   Now think about how far a photon of light can travel in just one hour.  That’s well over 6 million miles in a single minute.  Now extend this by hours, days, weeks, months, and finally a single year.  You just might be starting to grasp the distance and then we start talking about thousands, millions and then billions of years, traveling at that same 186,000 miles each and every second of those billions of years.

   These numbers are so great, that if each of us represented a single atom, and we lined up each and every single atom that makes up the earth, we are still not reaching across the cosmos.  It is extremely difficult to comprehend these type of distances.  Now that you have perhaps started to understand that we are talking about distances beyond imagination less than 100 years ago, we have thus far only talked about looking in one single direction into space.

   Now consider that we can look in every other possible single direction outside of our world and see light coming at us from these same extreme distances.  About this time you may be feeling rather small and insignificant in the cosmic universe.  Though it is true each of us does not amount to even a grain of sand on the earth, in comparison, we can each look at the images captured by Hubble and revel in the knowledge that each and every one of us is unique in this same universe. 

   So at a time when we can each perhaps feel very small indeed, we should realize that in all the universe we have yet to find other life, be it intelligent or not.  Though the odds are greatly in favor of there being life elsewhere, somewhere, we know life appears to be very rare off the planet earth.  At least we have yet to find any.  So my wish is everyone could realize how precious life is, and what a shame it is that our history is filled with our willingness to destroy what is so rare in the universe.

This is an image taken by the Hubble Telescope. 

The Hubble telescope was pointed to what was thought to be one of the most empty regions in known space.  As can be seen in this image, the Hubble time-machine was still seeing hundreds and hundreds of galaxies even as far back as almost 13 Billion years ago.  And around each of these galaxies are millions or stars with their own solar systems in an area of space which is less than a grain of sand as far as we can see.

Myriad Galaxies in Hubble's Deep Field Image

No matter where we look, there is more to see.  What will the upgraded Hubble show us next?

A Gravitationally Lensed Quasar

May 13, 2009 Posted by | Space | , , | Leave a comment