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Solar System Time of Arrival
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Solar System Time of Arrival
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Solar System Time of Arrival
Benoit The theory that life on earth began on the floor of the ocean
is making more,and more sense to me. The reason is even when the surface became a crust it was more hostile to life than the ocean floor. Moby told me that. He should Know Bert |
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Solar System Time of Arrival
Benoit The theory that life on earth began on the floor of the ocean
is making more,and more sense to me. The reason is even when the surface became a crust it was more hostile to life than the ocean floor. Moby told me that. He should Know Bert |
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You could have some of my fish if youd like to save the waiting???
I have the impression that as you said carl sagan said we came from stardust was referring to the fact that all our chemical make up was made inside of a star at some point in the past as only the ligtest elements exist, until converted to the heavier elements inside stars? Nige "Benoit Morrissette" wrote in message ... On Sun, 10 Aug 2003 10:36:28 -0400 (EDT), (G=EMC^2 Glazier) wrote: Benoit The theory that life on earth began on the floor of the ocean is making more,and more sense to me. The reason is even when the surface became a crust it was more hostile to life than the ocean floor. Moby told me that. He should Know Bert Surface more hostile to life than ocean? You have a gift for understatements my friend! 4 billions years ago, the chemical composition of Earth's surface (crust and ocean) was very different than it is today. Most of the rocks and stones we see today did not exist at that time because they were not formed yet! Grassland and almost all land around us comes from millions of years of sedimentation on the floor of the oceans. Volcanic activity help a lot to mix these new rocks with old ones to make new types of chemical mixtures. Limestone, for example, is formed by tiny shells from microscopic animals. Sand is formed by eroded silicates and you need oxygen to make silicates and other quartz... Oxygen comes from life only so the first lifeforms on Earth did not need oxygen to live! All of this to say that Earth's primitive crust wat TOO chemicaly simple to allow development of life. If you want to make life you need: - A solvent: a lot easier for chemicals to mix together. The best solvent depend of the distance between planet and sun. At Jupiter-like distance, ammonia is liquid so you can dissolve silicon based molecules easily. At Earth distance, it is water and carbon that get the big role. - Chemicals: Of course, life is a complex thing: you need almost all the periodic table of the elements to make some... And the elements are not enough: you need to mix them in the right proportions to build molecules, a lot of them... - Energy: Some elements just don't like each others and they need a little "kick in the a.." to bind together. That can be done with energy, any kind of energy. On Earth, it is heat, light and gravity who get the task done. Heat from the Sun and volcanic activity, UV light from the Sun ( remember that Earth has no oxygen so it has no ozone layer to protect the surface from UV light ) binds together the molecules that are gathered on the high-bottoms of the oceans by gravity. - Time: I have an empty aquarium but i am too cheap to buy fishes so here is my recipe to get some: take an aquarium, fill it with water and pour in everything you can find at your local drugstore. Wait till Friday night and take it to your local Disco ( not Rave, they have not enough blacklight! ) party to add some UV light and some sound waves to mix the chemical together. Wait. Wait... Wait... approximately 100 000 000 years or more and Bingo! Instant Life! I i wait a billion years more, i will get my fishes! Conclusion: While life could have appeared on Earth's crust, it is a lot MORE likely that it appeared on... the beach! (where we all should be right now...) I would like to add 4 notes to this small essay: First, there are other places in the universe where the conditions are correct for life to evolve from inert material: comet surfaces and great nebulaes. It is more and more accepted in the scientific community that life on Earth could have come from a comet or an asteroid from elsewhere in the Galaxy. Carl Sagan said that we are made of starstuff, remember? Second, while writing the "Disco" part of this text, it occured to me that sound waves could very well replace UV light for the mixing energy in the formation of life. To the best of my knowledge, i am the first one to have though about this. If that becomes inportant in future theories of life formation, i would like to be credited the idea that sound waves played a role in this. Third: I live just about 30 kM south of a rocky formation called "The Canadian Shield" ( Trois-Rivières, Québec, Canada ). It is huge, about a third of Canada and it is OLD, about 3.5 billions years old, amongst the oldest rocks on Earth. Some times, i go there and i touch the rocks and i stand in respect for the communion of two chemical receptacles separated by eons of times... I do not know the english words here to express what i feel in that moment but i wish everyone could have that almost mystic experience by themself. Fourth: You may have noticed a few mistakes and a few bizarre sentences in the text above, please forgive me: english is not my native language. I nam working hard to get better and your help will be greatly appreciated! BenoÎt Morrissette, http://www.mapquest.com/maps/map.adp...&city=trois-ri vieres&state=qc&submit.x=49&submit.y=12 |
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On Tue, 12 Aug 2003 13:00:32 +0100, "The Lord"
wrote: You could have some of my fish if youd like to save the waiting??? I have the impression that as you said carl sagan said we came from stardust was referring to the fact that all our chemical make up was made inside of a star at some point in the past as only the ligtest elements exist, until converted to the heavier elements inside stars? Nige Atoms are eternals. The hydrogen atoms used in bombs are about 15 billions years old... just like the helium we find in balloons! In the beginning, only hydrogen and helium were produced in the BigBang. Some of the others elements are produced in normal stars like the Sun. But to get the complete periodical table, we need something absolutly cataclismic: a Super Nova! There is currently no other know process that can produce gold, mercury etc... As the Solar System condensed about 5 billions years ago, all the atoms of our bodies are older than that. And the hydrogen in us ( 75% of the human body is water ) is as old as the universe... I understand now why i have wrinkles in my face... Benoît Morrissette... |
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