01-08-2025, 03:48 PM
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#1721 (permalink)
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I don't know what to believe anymore:
https://www.snopes.com: No, That Plymouth Rock Meme Doesn't Disprove Rise in Sea Level
Quote:
Even if the rock had never been moved, Shabo says that it “definitely cannot provide an accurate measure of sea level rise.” Even so, there are records of the rock being underwater, including during King Tides.
That’s because on average, sea level is rising around the planet but at very different rates, which depend on many factors...
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.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
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01-08-2025, 07:22 PM
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#1722 (permalink)
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Seems to me the most useful measurement of sea level is the diameter through the center of the earth to the corresponding point at the other side of the earth. You would take those measurements at many locations and times, and average that distance. The change would be the difference in that distance from the last measurements.
That sounds nearly impossible to me, so I don't know what the method used today is, and what the drawbacks are. Simply measuring the distance to sea from some land point seems susceptible to much inaccuracy. Is the land abducting, or subducting? As land submerges, the water creates buoyant forces, and other complications. Same sorts of measurement errors SA brings up with regard to global surface temperature.
More measurements should provide increasing confidence and narrow the margin of error though.
All the water on earth is an 860 mile diameter sphere.
Maybe we just need to trench the Mariana trench a bit more?
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01-09-2025, 11:35 AM
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#1723 (permalink)
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You can get super accurate elevations from space. Got a constellation of earth monitoring radar throwing birds up there doing just that. Might not be radar, could be UV laser, but supposedly they are accurate to .001" or the metric equivalent limited in accuracy by their super precise atomic clocks and the local speed of light.
And this is 40 year old info back from when I did satellites, the SOTA is better now
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casual notes from the underground:There are some "experts" out there that in reality don't have a clue as to what they are doing.
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01-10-2025, 11:11 AM
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#1725 (permalink)
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Runs around in circles shouting "We are gonna die" while wearing anti radiation tin foil hat.
Hmmm anybody ever explain to those people that the tinfoil don't stop much radiation? Would they even listen? Suspect not.
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casual notes from the underground:There are some "experts" out there that in reality don't have a clue as to what they are doing.
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01-10-2025, 03:08 PM
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#1726 (permalink)
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Who are those people running around in circles? #1724 was about accuracy of measurement.
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01-10-2025, 03:46 PM
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#1727 (permalink)
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Quote:
Originally Posted by freebeard
Who are those people running around in circles? #1724 was about accuracy of measurement.
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Do i need to flag it with brackets and change font to illustrate sarcastic or abscerbic comments?
Yes I understood your meaning but sometimes the evil piotrsko answers
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01-10-2025, 04:18 PM
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#1728 (permalink)
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If tin foil is made of tin, what are fog horns made of?
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01-10-2025, 04:31 PM
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#1729 (permalink)
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Quote:
Originally Posted by freebeard
If tin foil is made of tin...
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It's made of aluminum. Not sure where tin foil comes from; probably where 110v AC comes from (the past).
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01-10-2025, 04:41 PM
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#1730 (permalink)
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It was a riff on an old riddle; "If tin whistles are made of tin..."
Quote:
Tin whistle
Six-holed woodwind instrument
The tin whistle, also known as the penny whistle, is a simple six-holed woodwind instrument. It is a type of fipple flute, putting it in the same class as the recorder, Native American flute, and other woodwind instruments that meet such criteria. A tin whistle player is called a whistler. Wikipedia
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The [jk] is that they're not, like the aluminium thing. Sorry for being obtuse.
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