"Cosmos: Possible Worlds" The Electric Boy (TV Episode ) - IMDb
Cosmos: A Spacetime Odyssey • • 13 episodes • 9hm of the Earth, geochemist Clair Patterson developed the uranium-lead dating method to Travel to 19th century England and meet Michael Faraday, a child of poverty who grew. This week's episode of "Cosmos," "The Electric Boy," focuses on one in particular: the 19th century physicist Michael Faraday. Faraday was. Following up on the original "Cosmos" series about the nature of time and space, Geochemist Clair Patterson developed the uranium-lead dating method to make an Meet Michael Faraday, inventor of the motor and the generator. .. heartbreak as he traces 3, years of Latin history in an effort to help his bullied son.
Pick a layer, any layer. How about that one? Once upon a time, there must have been shallow water here. Back in the Precambrian period, about a billion years ago, there was only one kind of life. These blue-green bacteria were busy harvesting sunlight and making oxygen. For them, it was just a waste product, but for the animals who evolved later, including us, it was the breath of life. This layer is known as the bright angel shale.
It formed about million years ago. These tracks were left So you want to know the age of the earth? Just figure out how long it took to deposit each layer and then, instead of counting the "Begats," add up all the layers. We know from observing this process, because it still happens today in oceans and lakes around the world.
That sediments can be laid down at widely different rates. It usually happens very slowly, say a foot of sediment per 1, years. But when the's a rare catastrophic flood, it can happen much faster, as much as a foot in just a few days. Many geologists tried this method to calculate the age of the earth.
They used the Grand Canyon and other sedimentary sequences around the planet. But their answers ranged too widely to be of much use, anywhere between three million years and 15 billion. And there were other problems with this method: Even the deepest layers of rock are not the oldest things on earth.
Because not even rocks could survive the earth's violent infancy.
Cosmos: A Spacetime Odyssey (2014) s01e07 Episode Script
In space it's another story. Are there any mementos from when the earth was born, objects that could possibly tell us its true age? I know a place where the unused bricks and mortar left over from the creation of our solar system can be found.
It lies between the orbits of Jupiter and Mars. Here is the stuff of the newborn earth, adrift in cold storage, unchanged ever since that time. A million or so years ago, a large asteroid happened to jostle a much smaller one, sending it on a new trajectory, a collision course that ended one night some 50, years ago.
It must have shattered the peace of the Grand Canyon as it sailed overhead to blast out this crater in what would one day be known as Arizona. Fragments of the iron asteroid that made this crater have survived intact.
If we just knew how long ago that iron was forged, we'd know the age of the solar system. But how could we know that? Some atoms in this rock could be radioactive, which means they spontaneously disintegrate and become other elements.
A uranium atom first becomes a thorium atom. On average, it takes a few billion years.
'Cosmos' recap: Michael Faraday, 'The Electric Boy' - Los Angeles Times
The thorium is much more unstable. In less than a month it turns into protactinium. A minute later, protactinium becomes something else. The atom undergoes ten more nuclear transmutations Until it reaches the last stop on the decay chain: A stable atom of lead. And lead it will remain For eternity. In the 20th century there was a huge effort, lasting decades, to measure the time it takes for each radioactive element to transmute into another element. Hutchinson fills in the missing details, for instance: But, as [Geoffrey] Cantor points out [in his book Michael Faraday: As for Maxwell, his faith is not mentioned in this episode at all, though he and Faraday, while coming from very different social and economic backgrounds, were equally devout.
If Cosmos were simply a science textbook for high school or college students, then minimizing discussion of the personal commitments that drove the greatest scientists would be understandable.
The emphasis, correctly, would be on explaining the science not elaborating other philosophical views. But from the start, Neil Tyson has wanted to tell very personal stories of the men and women he portrays as scientific heroes.
'Cosmos' recap: Michael Faraday, 'The Electric Boy'
Clearly, his intention has been to excite young viewers, sparking their passion for science. The animated sequences in this episode brought Faraday's various experiments vividly to light — an impressive accomplishment, since they can be difficult to visualize. The induction motor started a revolution: Instead, he was kind of jealous. It didn't help that people were saying that Faraday was his greatest discovery, despite Davy's many scientific accomplishments.
To get his rival out of the way, Davy set Faraday an impossible task: Faraday never learned the secret, despite four years of effort and repeated failures. He kept a single glass brick on a shelf as a souvenir of this disheartening period in his scientific career. Fate intervened again on Faraday's behalf when Davy died and Faraday succeeded him as head of the laboratory. Now he was free to pursue whatever he liked, and he made another revolutionary invention.
He noticed that a moving magnet could induce an electrical current, converting motion into electricity, pretty much on demand.COSMOS 03 - LA ARMONÍA DE LOS MUNDOS (Español Latino) HQ
We can thank Michael Faraday for the generator. That would have been enough to cement his place in the history books, and in Februaryit seemed like that would be it. Faraday suffered a breakdown of sorts, struggling with depression and memory loss for the rest of his life.
The Cosmos: The Electric Boy (Part 10) - Creation Studies Institute
But he was Michael frickin' Faraday. He persevered, undertaking a complicated experiment to prove that light was closely linked to electricity and magnetism. Remember that piece of glass he kept on his shelf as a reminder of his failure?
That turned out to be the key to his success. There's a lesson in there, people. Anyway, he showed that light could become polarized — isolated into a single wave rather than spreading out randomly in all directions at once — in the presence of a magnet.