Cosmos Episodio 2 parte 2/7

Episodio 2: Una voz en la fuga cósmica

Contenido:

La historia de los Heike y la selección evolutiva artificial de los
cangrejos que parecen samurais.
La evolución biológica a través de la selección natural; de las
bacterias al hombre.
Especulación sobre la existencia de vida en las nubes jovianas.
Creación de las "moleculas de la vida" en el laboratorio.
El desarrollo de la vida en el Calendario Cósmico y la explosión
cámbrica.
Fuente: http://es.wikipedia.org/wiki/Cosmos:_Un_viaje_personal

Episode 2: One Voice in the Cosmic Fugue

Contents:

1. Opening
2. Spaceship Cosmic Matter
3. Heike Crab
The story of the Heike crab and artificial selection of crabs
resembling samurai warriors
4. Artificial Selection
5. Natural Selection
Evolution through natural selection
6. Watchmaker
Intelligent design
7. Cosmic Calendar
The development of life on the Cosmic Calendar, and the Cambrian
explosion
DNA and its functions in growth, replication and repair; mutations
8. Evolution
Animated evolution, from microbes to man
9. Kew Gardens-DNA
Journey into the cell nucleus
10. Miller-Urey Experiment
Common biochemistry of terrestrial organisms
Creation of the molecules of life in the laboratory; the Miller-Urey
experiment
11. Alien Life
Speculation about life in Jupiter's clouds
12. Cosmos Update 10 years later
RNA can control chemical reactions as well as reproduce itself.
Comets have a lot of organic molecules in them.
Source: http://en.wikipedia.org/wiki/Cosmos:_A_Personal_Voyage

Category:

Science & Technology

Tags:

• Cosmos
• Carl
• Sagan
• Episode
• One
• Voice
• in
• the
• Cosmic
• Fugue
• subtitulos
• subtitulado
• español
• spanish
• espanol
• audio
• original
• Una
• voz
• en
• la
• fuga
• cosmica
• Ann
• Druyan
• Astronomia
• galaxias
• estrellas
• planetas
• Evolucion
• Seleccion
• Natural
• Calendario
• Cosmico
• Subtitles
• multilanguage

[badism]

Actually evolution is a provable fact. Nothing you believe can be proved and thus is not real.

Half-man, half ape? What do you want? a fossil with a man's body and an apes head? Evolution doesn't work like that. It was small gradual changes over millions of years. All fossils are transition fossils and we have many of them. Try a museum. Somebody has filled your head with a lot of nonsense. Talk to real scientists, not your church minister and read a book other then the bible.

[CataCata777]

Gracias Carl Sagan!!!

[diogotomediogo]

4:13 to 4:47

[bhdrandyal1993]

@badism then what if some alien came here and made us like this from monkeys and told us they were god (cause way too much evolved then we even are now), and so we did creating a creed on 'em...?? It's a possibility and even you can not denie it. I don't think religion is a/the problem, not itself, but those who think they know it and accuse it as if they were god. Arrogance is close to idiocy, oh no probably ahead.

[EstebanVision]

this was awesome

[MessalonskeeTaylor]

Boring.......................

[missfeminecat]

jeje no se necesitan siempre millones de años, Carl tenía razón en parte. pues existe algo que ahora se llama selección artificial. El ejemplo más claro son las muchas razas de perros que existen hoy en día, no fueron necesarios millones de años para que se crearan todas, solo algunos cientos de años de manipulación y selección por parte del ser humano.

[mrx0066600]

The same way that predators are not as likely to eat prey that has better camouflage. For the crabs the camouflage was looking like one of their major predators, for the crab those major predators were us humans. and having that gene, increase their chance of survival quite a bit.

Pretty simple

[anonimoculto]

@badism cont. The same happens to the facts corroborating evolution (like the set of fossils) and to the THEORY of evolution (wich includes the idea of natural selection and others to describe the inherent facts). ALL ideas in science, and so, ALL THEORIES, no matter wich is it, MUST be falsifiable. THERE IS NO DOGMA in science, no one. But, until now, there is no fact too that requires the improving of the theory of evolution.

[anonimoculto]

@badism First see that I am pro-evolution and against creation. But we must be coherent. No, evolution is not a fact, it's a theory. I will use what you've said: the verifiable fact that all apples fall from apple trees does not make the theory of gravity from Newton a fact. So, it was improved and became the theory of gravity by Einstein, the general relativity. But the fact remains the same, verifiable. NEW facts were DISCOVERED, that obliged the improving of the ideas and the theory.

[badism]

@anonimoculto And there are many facts that validate evolution and thus evolution itself is a fact. Gravity is also a theory and we have the atomic theory. Creationists never seem to dispute those. They seem to want one species to give birth to another, something in itself that would actually disprove evolution. Why are they being so woefully ignorant? Why is it so important that their old book be true when it clearly isn't. The world will go on just fine without the bible.

[anonimoculto]

@usbrian67 The missing links do not prove anything in this case. And they are gradually being found (but think about: for more fossils we find, will never be enough to you, isn't it?). A found fossil wich does not link with anything could do what you would like a lot, shut down the evolution theory, but this fossil was never found, too... The absence of a fact is not a fact itself. But, if you affirm you have a fact, a scientific fact, it MUST be verifiable. At least in science.