Here is another on Panspermia, but it is 9 minutes long!!!
Here are links from Wikipedia in Spanish and English, in case you want some background information on the subject; this experiment simulates hypothetical conditions present on the early Earth and tested for the occurrence of chemical evolution.
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13 comments:
Well, I think that the origin of the Earth is very interesting, because I can not imagine that some planet like the Earth has evolved, and right now, the Earth is the only home that we have. The video is very interesting and the experiment made by Miller-Urey is so impresive.
All of us put to think since(as,like) the land arises and every the one who has his(her,your) different point of view brings this paradigm over, but we all have the same conclusion it is surprising wherefrom we come and that theories mate to the reality with relation to the experiments of the chemical reactions that include the alive(vivacious) beings
WUAO el video me pareció super interesante, me cuesta creer que la vida se originara de esa manera. Por otra parte creo el experimento de Miller-Urey es sumamente ingenioso...
this theory, in my oppinion, it's like a below of the theory of the big bang. but i also think that this theory its kind incomplete because if this happen with the earth, why it doesn't happen with the other planets. so much coincidence that all the elements of the universe come and hit just our planet.
that why i think there is not just one theory to prove how life began.
Vanessa Garcia
Hi! the video its so cool! the origin of universe is so interesting and though everyone have a onw point of view in my opinion the panspermia is a theory very convincing and the Miller-Urey's experiment is so ingenious.
The experiment of Miller-Urey is very ingenious.. and this theory have a lot of credibility but i think that the theory is like incomplete because if this happens in the earth why doesn't happen in another planet..
el experimento me impacto full
nicolas correa
The video explains very well the hypothesis related to the beginning of life on our planet. It's like reproduce the class about this topic... great !!!!...
The experiment, wow!!!!!!!!, as far as the imagination and intelligence of the human being as for design a model as evidence for support the hypotheses.... It's super interesting and convincing !!!!!
In my opinion, I believe in the hypothesis uphold that life evolved on our own planet. Not even conceive that life was transported from outer space. I do not believe in that possibility, there are many objections to this hypothesis. If so, whether these "seeds of life" were real, why not there is life on our planet adjacent to us ... It's very complicated, but not until more convincing evidence will not consider such a belief.
The development of life from conditions given on our planet, the hypothesis is more real, more evident. Furthermore, over the years, could given the suitable atmospheric conditions for life, between the reaction formed from lightning, volcanic lava and other chemical elements such as H, CO,..., formed the perfect environment to start life ... and thanks to those conditions, and its evolution over the years, yet has remained (and hopefully will continue keeping more centuries! Jeje!) =D
Miller-Urey´s esperiment is very ingenious. this theory isn´t at much credible because it didn´t explein why it only happens in the earth and not in others planets.
the theory of panspermia seems improbable to me because if were thus, then so that there is no life in other planets? as those seeds were watered? , however the experiments of Miller-Urey try that in the planet they existian condicones necessary for the training of the life. This experiment gave like result the formation of a series of organic molecules, used by the cells like the basic pillars to synthesize its proteins. This experiment was key to verify the Theory of the fundamental broth for the origin of the life. it is possible to be thought that in other planets there is not even no a condition so that life forms.
I found this in a website is really interesting, I think there is much information all around the world that we don’t know. We should get more updated about these topics because they are so important for us, we are part of them...
One of the latest origin-of-life ideas posits that the surface of early Earth, both land and sea, was frozen solid because the sun put out nearly a third less light than it does today. Planetary scientists previously got around this sunlight problem by proposing an early atmosphere rich in carbon dioxide, a greenhouse gas that cast a warming blanket around the planet. But such an atmosphere spells "the kiss of death for organic chemistry," according to Jeffrey Bada of the Scripps Institution of Oceanography, and would not be conducive to creating life.
In 1994, Bada, Scripps colleague Charles Bigham, and Miller proposed instead that impacts from asteroids and meteorites about 100 kilometers in diameter periodically thawed the ocean. A hole punched through the oceanic ice would have freed trapped greenhouse gases, spewed from deep-sea hydrothermal vents, into the atmosphere, possibly in great enough quantity to prevent the ocean from refreezing. The impacting object may have deposited its own organic matter that mixed with other compounds in the depths, where a cascade of chemical reactions could have paved the way for life to arise and survive even when the ocean surface refroze.
Carla Guadalupe Cabello López.
I like this video because It explains very well how our life begun to be life, the first unicelular organism in the earth , how the inorganic elements gather together to form a cell and how this cell had evolved many years and originated something so wonderful as life.
But what I don't like of this video it is that it begins speaking of a world in which the water exists and it does not explain clearly how it formed that water or the volcanos.
this video presents very goods reazons to believe in the theory of the panpermia. However i^m not very convince with this theory beause if this were tue, will have life in other planets too.
But this theory is a good one and its so valid as the otherones.
ISAAC
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