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RE: Black Hole eats sun
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BarkellWH
Posts: 3289
Joined: Jul. 12 2009
From: Washington, DC
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 RE: Black Hole eats sun (in reply to Ricardo)
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quote:
Well, off to a good start this morning! Got fingers crossed she makes it with no hitches and all instruments work!
The successful launch sent a chill up my spine.
As the New York Times describes the JWST's mission: "Its primary light gathering mirror is 21 feet across, about three times larger than Hubble, and seven times more sensitive. The Webb’s mission is to seek out the earliest, most distant stars and galaxies, which appeared 13.7 billion years ago, burning their way out of a fog leftover from the Big Bang (which occurred 13.8 billion years ago)."
Appropriately enough, my wife gave me as a Christmas gift a book entitled "Conquering the Pacific." It tells the story of the 1564-65 Spanish voyage across the Pacific from Mexico to Manila and return by Andres de Urdaneta. The voyage opened up the Pacific to Spanish trade with the Far East and laid the groundwork for the famed Manila Galleons over the next two and one-half centuries.
In a span of five hundred years we have gone from the Age of Discovery (primarily Portuguese and Spanish) to exploring the furthest reaches of the known universe. We were meant to explore the unknown and our place in the cosmos. Today was a great step in that endeavor.
Bill
_____________________________
And the end of the fight is a tombstone white,
With the name of the late deceased,
And the epitaph drear, "A fool lies here,
Who tried to hustle the East."
--Rudyard Kipling
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Date Dec. 25 2021 18:37:12
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Richard Jernigan
Posts: 3194
Joined: Jan. 20 2004
From: Austin, Texas USA
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RE: Black Hole eats sun (in reply to BarkellWH)
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In 1613 Galileo wrote to Cantelli espousing the heliocentric theory of the solar system, and pointing out that the Bible was not a reliable scientific text. The letter was not formally published, but circulated widely, lending credence to the heliocentric theory and eventually figuring in the Church's persecution of Galileo.
Newton published Principia in 1687, 52 years after my first American ancestor arrived on this continent.
Maxwell read "A Dynamical Theory of the Electromagnetic Field" to the Royal Society in December, 1864 while my great-grandfathers were still engaged in the Civil War. Faraday's experimental work at the Royal Society was quite significant in Maxwell's theoretical development.
Einstein proposed Special Relativity in a paper published September 26, 1905, a week and a half before my father was a year old. Eight years later Einstein and Grossmann proposed General Relativity.
The foundations of Quantum Mechanics were well developed by a number of physicists by the end of the 1920s.
Edwin Hubble first showed the existence of galaxies beyond our own in 1926, eleven years before I was born. Now there is some hope that within my lifetime astronomers will observe the earliest galaxies, as they emerged within 110-million years of the origin of the universe.
The physics/astronomy business is picking up.
RNJ
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Date Dec. 26 2021 1:56:00
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Arash
Posts: 4416
Joined: Aug. 9 2006
From: Iran (living in Germany)
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RE: Black Hole eats sun (in reply to devilhand)
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Denying human nature is what would have caused us to stay in caves forever.
At that time, you could have argued, whats the point of looking outside my cave, will it solve my issues inside the cave? Only through the knowledge you gained outside your cave and the challenges your faced, you were able to advance and get out of that cave.
Later on thousands of years later, you could have asked, whats the point of sailing ship to the unknown? will it solve the issues in our village? Who cares whats out there in the horizon?
Now that the entire earth has been discovered, the next inevitable step is space. You can not deny your nature or else you would have been doomed to stay in the cave as a neanderthal forever.
All the issues you mentioned (poverty, inequality, overpopulation, pollution and global warming, and much more)
can ultimately only be solved if we keep discovering beyond our horizon.
In 100.000 years, the only solution might be just leaving earth and if today that quest of knowledge hadn't been started, then we might have been doomed to extinction when its time to do something. In fact, in couple billion years we will be dead here on earth anyways, because the sun will eat us. So if something is true on a galactic scale and timeframe, then the inevitable answer to the solution is that the answer to the solution must have started with small steps at some point in the past, and that past is now. Unless you are only interested in your insignificant life of 80 or 90 years which is completely irrelevant when it comes to humanity as a whole
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Date May 18 2022 19:55:16
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