Earth Science: Crash Course History of Science #20
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Date: 2022-04-04
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Comments and reviews: 9
John
Watching this video makes me think you are the perfect person to ask this question. And let me just say, it may be a really dumb question that I just completely overlooked the answer to but I can-t seem to find one. -
So, star explodes creating all the elements that eventually come together as a planet. All of the radioactive isotopes are presumably made during this stellar explosion. So, planet forms from this space dust with all of the isotopes within the dust and makes the compositions of the planet. -
So, my question, why is there any difference between the amounts of isotopes anywhere on a planet? -
Shouldn-t the age of all rock be the same age as the space dust it was made from? -
Again, maybe it-s a supper dumb question but my understanding is that there is not really any new isotope formation so when we radiometrically date rocks there was kind of a fixed concentration at the starting point which is why the dating is reliable. I feel like I-m missing something, can you help?
reply
Watching this video makes me think you are the perfect person to ask this question. And let me just say, it may be a really dumb question that I just completely overlooked the answer to but I can-t seem to find one. -
So, star explodes creating all the elements that eventually come together as a planet. All of the radioactive isotopes are presumably made during this stellar explosion. So, planet forms from this space dust with all of the isotopes within the dust and makes the compositions of the planet. -
So, my question, why is there any difference between the amounts of isotopes anywhere on a planet? -
Shouldn-t the age of all rock be the same age as the space dust it was made from? -
Again, maybe it-s a supper dumb question but my understanding is that there is not really any new isotope formation so when we radiometrically date rocks there was kind of a fixed concentration at the starting point which is why the dating is reliable. I feel like I-m missing something, can you help?
reply
Aspiah
I'm really curious how geologist determined the age of the earth. Now, my questions are answered. Many speculation and theories regarding the age of earth have arisen during 17th century in Europe, people do believe that the age of the earth is parallel with the age of humans. It is really awesome how geologist determined the age of the earth depending on the fossils, volcanoes, and rocks. Their conclusions and studies has a big impact in the history of science because it help us to determined the age of the earth.
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I'm really curious how geologist determined the age of the earth. Now, my questions are answered. Many speculation and theories regarding the age of earth have arisen during 17th century in Europe, people do believe that the age of the earth is parallel with the age of humans. It is really awesome how geologist determined the age of the earth depending on the fossils, volcanoes, and rocks. Their conclusions and studies has a big impact in the history of science because it help us to determined the age of the earth.
reply
education
7: 18 I'm all for elevating and appreciating uncredited contributors to science (or any endeavor, but -indigenous knowledge-makers- sounds _distinctly_ like intersectionalist jargon creeping into your science. Keep the religious lingo out of my science, thanks.
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7: 18 I'm all for elevating and appreciating uncredited contributors to science (or any endeavor, but -indigenous knowledge-makers- sounds _distinctly_ like intersectionalist jargon creeping into your science. Keep the religious lingo out of my science, thanks.
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ejames80
And there are still people who believe earth is around 6K years old. And that this current humanity coexisted with dinosaurs, and the carbon dating is a scam from the devil to weaken your faith.
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And there are still people who believe earth is around 6K years old. And that this current humanity coexisted with dinosaurs, and the carbon dating is a scam from the devil to weaken your faith.
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RUNDR
lmao this leftist propaganda is saying europe didnt start mining before the colonial era. lmao. The romans had very advanced mines, and europeans in general mined before and after that.
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lmao this leftist propaganda is saying europe didnt start mining before the colonial era. lmao. The romans had very advanced mines, and europeans in general mined before and after that.
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Jim
Damn man, you look and sound just like Hank Green from SciShow! But I suppose that's just coincidence, right? John Green, Hank Green? Are you two twins maybe?
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Damn man, you look and sound just like Hank Green from SciShow! But I suppose that's just coincidence, right? John Green, Hank Green? Are you two twins maybe?
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flamedragon07
I love the Charles Darwin and his Finch cameo by thought cafe before Buckland's portrait. That was so funny to see Darwin's thought cafe cameo.
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I love the Charles Darwin and his Finch cameo by thought cafe before Buckland's portrait. That was so funny to see Darwin's thought cafe cameo.
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eui
This is really a big help! We are learning earth science right now and this video helps me so much I think I will do great on my test on Friday! :D
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This is really a big help! We are learning earth science right now and this video helps me so much I think I will do great on my test on Friday! :D
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Linda
Human need for coal ( an energy source) spur the development of new study, earth science, and this new science really ROCKS!
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Human need for coal ( an energy source) spur the development of new study, earth science, and this new science really ROCKS!
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