This chapter is organized in cooperation with and from the corresponding chapter in Astronomy Web. S. Helgi Bragason (2009). Spectrometry. sport authority Stjörnufræðivefurinn. http://www.stjornuskodun.is/alheimurinn/litrofsgreining. Retrieved 01/15/2012. sport authority
Spectrometry. Image: ESO Although it may sound lygilegt we can look back in time. We can see with the naked eye, things that no longer exist - or are changing. Indeed, we can only look back in time. It is impossible to see anything as it is. It is just possible to see them as they were. The reason is that the vision sport authority is based on the light. Light travel. It takes time for the light bulb example of that from the eyes as a lamp. The light that comes into your eyes stimulates cells inside the eye that send messages to the brain. The brain then generates an image from the message. This is not so different sport authority from playing the piano.
. . Suppose that you might no piano. But in front of you are playing the piano with lines that have been marked with numbers from 1 to 88. The face you call a person who lifts the card that is number 55. You realize, and press the note number 55. The medicament it another Talk : 73 and you enter the receipt number 73 and so forth,. It will be a song. But who made the song and where was it? The answer is not so simple. It was certainly not the cards that were to each one, it was not even the fingers that press notes. The sounds were inside the piano when small hammers struck strings. Hammers but were attached notes and notes were in contact with the fingers. So there is an obvious causal chain. As it is with the images sport authority you see. Even if you see an item that you see only the image that your brain has made him. You can then dundað you with thoughts of whether the object is thus the "reality" or whether sport authority everyone sees all things as. As soon as the light touches the eye image in an instant. But this light may have been hours on the way to the eye. And the image that will be the object that emitted or reflected this view. From our sun is 8 minutes way for light to us. We see that 8 minutes old image of the sun. If the sun would burst into ribbons sport authority took 8 minutes to some of it - and all these 8 minutes, we would see the sun shine peaceful as there was nothing in the sky if it was not longer. sport authority Some things we are still farther away. And we know that some of the stars we see in the sky are long since ceased to exist. Presently the exciting search for places in the universe there is a possibility that life evolved. We direct precise instruments to certain parts of the sky and look for signs of planets around sport authority stars (suns). In particular, be looking for planets that are moderately close but not too close to the sun his (and, based on the water can be floating on the surface of the star, but not frozen or steam). Considering the importance of water for life on earth is not unreasonable to assume that it will be important for life elsewhere in space. The next day found two new planets (but people are beginning to find them with an unprecedented rate of late). They were found by Kepler Telescope US geimferðastofnunarinnar (NASA). But if they are, none likely to sustain life that draws attention to how formidably sport authority far they are away. The light from the other is made to be 4,900 years on the way to our 5400 from the!
. . If we now find a planet sport authority that was similar sport authority and was our life that had evolved in a similar way and here it was our problem in that if she was in the 5000 light-years away from us. Although we'd sport authority stare at the planet from our telescopes and its inhabitants back to us then transparent to each other as we were 5,000 years. Message from us the technology 5,000 years to reach the end and we had to wait 10,000 years to get an answer!
Maybe there will never be possible to interact with organisms elsewhere in the world. And although we were aware that somewhere was life then keep some scientists argue that we should sharply keep us together and let not know us. Not because we fear so much that the aliens were alien and incomprehensible sport authority - but precisely because we feared that they are like us. The history of mankind is the first and last story of the selfish species do not hesitate to conquer everything and everyone, without regard sport authority for the consequences. Here are two music videos that revolve sport authority around this theme. People tend to go with the exploitation and grip departments:
. . . . Maybe the post that gerbreytast in the coming years and decades. Maybe it will be possible sport authority to shorten their way through space or make travel to distant locations possible. Various ideas are. But if there's one thing we know for certain it is that the world is constantly surprise us. Brian May, astronomer o
