Cosmos
It has been a gorgeous weekend this weekend. I set aside my bike, sat on the beach, enjoyed the warm sun light originated million miles away, and cannot help not to amaze the order of the universe. The sun energy is transmitted by electromagnetic waves (heat) across the solar system and affects us in the most significant way—it gave all living things lives. The sun (and the moon) also affects us by pulling us constantly with its gravitational force. We may not be able to feel it, but we can see the tides going up and down in daily cycles.
All these celestial objects seem so far away are actually very much connected. In fact, at the beginning, universe was started 15 billions years ago from a mathematical singularity where all the mass of the universe were packed as close as it could be (big bang). What happened before that? Our lives seem so infinitesimal short and our planet so insignificant. I cannot help to ask the same questions I had asking many times before: why the universe the way it is? Where did all these mass and energy come from? If there is an amazing god who created this amazing universe, who created god?
Labels: cosmos
posted by Keith @ 12:01 AM
2 Comments
2 Comments:
I think the heat from the sun is transferred to earth mainly by radiation and not EM wave, no? Anyway, the debate on a "designed" universe vs an "accidental" universe will continue for a long time. One thing for sure, life (i.e. human form as we know it) is short - I will make good use of this sparkle :)
I do need to be careful what I write when there is a smart reader like you watching. Don't get me started...
The Second Law of Thermodynamics allow only two form of energy transfer: work and heat. Radiation heat is actually a form of EM when the spectrum is of longer wavelength (beyond infrared). Most of the energy come in with shorter wavelength known as visible light...
Physics is so sexy.
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