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That's Neat! 1: That's neat
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Cornell University
National Champion 1967, 1970
ECAC Champion 1967, 1968, 1969, 1970, 1973, 1980, 1986, 1996, 1997, 2003, 2005, 2010
Ivy League Champion 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1977, 1978, 1983, 1984, 1985, 1996, 1997, 2002, 2003, 2004, 2005, 2012, 2014, 2018, 2019, 2020
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Re: That's Neat! 1: That's neat
Originally posted by Kepler View PostHe's obviously neurotic. Maybe his parents died in a mountaineering accident and he subconsciously feels that if he can just hang by his fingertips long enough they'll be restored to him.
So, he's super f-cked up in the head, which is bad, but it makes for a moment's passing entertainment for me, so that's good."The party told you to reject the evidence of your eyes and ears. It was their final, most essential command." George Orwell, 1984
"One does not simply walk into Mordor. Its Black Gates are guarded by more than just Orcs. There is evil there that does not sleep, and the Great Eye is ever watchful. It is a barren wasteland, riddled with fire and ash and dust, the very air you breathe is a poisonous fume." Boromir
"Good news! We have a delivery." Professor Farnsworth
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Re: That's Neat! 1: That's neat
Originally posted by Kepler View PostSo, he's super f-cked up in the head, which is bad, but it makes for a moment's passing entertainment for me, so that's good.
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Re: That's Neat! 1: That's neat
Your AAA map of the Roman Empire c. 125 AD.
http://www.openculture.com/2017/06/a...bway-maps.htmlCCT '77 & '78
4 kids
5 grandsons (BCA 7/09, CJA 5/14, JDL 8/14, JFL 6/16, PJL 7/18)
1 granddaughter (EML 4/18)
”Any society that would give up a little liberty to gain a little security will deserve neither and lose both.”
- Benjamin Franklin
Banned from the St. Lawrence University Facebook page - March 2016 (But I got better).
I want to live forever. So far, so good.
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Re: That's Neat! 1: That's neat
Originally posted by St. Clown View PostSo he's frogurt purchased from a dark Chinese trinket shop?Cornell University
National Champion 1967, 1970
ECAC Champion 1967, 1968, 1969, 1970, 1973, 1980, 1986, 1996, 1997, 2003, 2005, 2010
Ivy League Champion 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1977, 1978, 1983, 1984, 1985, 1996, 1997, 2002, 2003, 2004, 2005, 2012, 2014, 2018, 2019, 2020
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Re: That's Neat! 1: That's neat
Originally posted by Kepler View PostOblique Monkey's Paw reference?"The party told you to reject the evidence of your eyes and ears. It was their final, most essential command." George Orwell, 1984
"One does not simply walk into Mordor. Its Black Gates are guarded by more than just Orcs. There is evil there that does not sleep, and the Great Eye is ever watchful. It is a barren wasteland, riddled with fire and ash and dust, the very air you breathe is a poisonous fume." Boromir
"Good news! We have a delivery." Professor Farnsworth
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Re: That's Neat! 1: That's neat
Today (in the Northeast at least) is the earliest sunrise of the year.
A week from today is the day with the longest amount of daylight hours.
A week after that is the latest sunset of the year.
To me, at least, it is "neat" that it happens this way."Hope is a good thing; maybe the best of things."
"Beer is a sign that God loves us and wants us to be happy." -- Benjamin Franklin
"Being Irish, he had an abiding sense of tragedy, which sustained him through temporary periods of joy." -- W. B. Yeats
"People generally are most impatient with those flaws in others about which they are most ashamed of in themselves." - folk wisdom
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Re: That's Neat! 1: That's neat
Originally posted by FreshFish View PostToday (in the Northeast at least) is the earliest sunrise of the year.
A week from today is the day with the longest amount of daylight hours.
A week after that is the latest sunset of the year.
To me, at least, it is "neat" that it happens this way.
Is the day with the earliest sunrise the same for all points in the hemisphere or does it vary by latitude?
Why isn't the procession of sunrise and sunset symmetrical?
Where's our godd-mned USCHO pet astrophysicist?Cornell University
National Champion 1967, 1970
ECAC Champion 1967, 1968, 1969, 1970, 1973, 1980, 1986, 1996, 1997, 2003, 2005, 2010
Ivy League Champion 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1977, 1978, 1983, 1984, 1985, 1996, 1997, 2002, 2003, 2004, 2005, 2012, 2014, 2018, 2019, 2020
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Re: That's Neat! 1: That's neat
Originally posted by Kepler View PostThat is neat.
Is the day with the earliest sunrise the same for all points in the hemisphere or does it vary by latitude?
Why isn't the procession of sunrise and sunset symmetrical?
Where's our godd-mned USCHO pet astrophysicist?"The party told you to reject the evidence of your eyes and ears. It was their final, most essential command." George Orwell, 1984
"One does not simply walk into Mordor. Its Black Gates are guarded by more than just Orcs. There is evil there that does not sleep, and the Great Eye is ever watchful. It is a barren wasteland, riddled with fire and ash and dust, the very air you breathe is a poisonous fume." Boromir
"Good news! We have a delivery." Professor Farnsworth
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Re: That's Neat! 1: That's neat
Originally posted by Kepler View PostThat is neat.
Is the day with the earliest sunrise the same for all points in the hemisphere or does it vary by latitude?
Originally posted by Kepler View PostWhy isn't the procession of sunrise and sunset symmetrical?
At the northern hemisphere's summer solstice, the earth is actually further away from the sun than at the northern hemisphere's winter solstice, which is why summers in Australia tend to be hotter than summers in the US at comparable latitudes away from the equator."Hope is a good thing; maybe the best of things."
"Beer is a sign that God loves us and wants us to be happy." -- Benjamin Franklin
"Being Irish, he had an abiding sense of tragedy, which sustained him through temporary periods of joy." -- W. B. Yeats
"People generally are most impatient with those flaws in others about which they are most ashamed of in themselves." - folk wisdom
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Re: That's Neat! 1: That's neat
Remember those Choose Your Own Adventure books from the 80s and 90s? These maps are how those books are laid out.
http://www.atlasobscura.com/articles...adventure-maps
I remember these, and it seemed like I always died or met a dead end on Page 57.Facebook: bcowles920 Instagram: missthundercat01
"One word frees us from the weight and pain of this life. That word is love."- Socrates
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Adventures With Amber Marie
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Re: That's Neat! 1: That's neat
Originally posted by FreshFish View PostIt varies by latitude.
Short answer: because the earth's orbit is elliptical and because the earth is tilted on its axis. The rest is math.
At the northern hemisphere's summer solstice, the earth is actually further away from the sun than at the northern hemisphere's winter solstice, which is why summers in Australia tend to be hotter than summers in the US at comparable latitudes away from the equator.
The answer to the former is, I'm pretty sure, yes.
The latter is a real head-scratcher. It may have to do with axial tilt, but I'm having a hard time creating a mental model that behaves according to actuals.Cornell University
National Champion 1967, 1970
ECAC Champion 1967, 1968, 1969, 1970, 1973, 1980, 1986, 1996, 1997, 2003, 2005, 2010
Ivy League Champion 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1977, 1978, 1983, 1984, 1985, 1996, 1997, 2002, 2003, 2004, 2005, 2012, 2014, 2018, 2019, 2020
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Re: That's Neat! 1: That's neat
Originally posted by Kepler View PostThe latter is a real head-scratcher. It may have to do with axial tilt, but I'm having a hard time creating a mental model that behaves according to actuals.
oh, well. I don't recall where I copied this information from. The mirror image happens at the winter solstice; earliest sunset happens before and latest sunrise happens after, so you need to make the appropriate adjustments in the text that follows for the summer solstice, with earliest sunrise and latest sunset....
Why doesn’t the earliest sunset come on the shortest day?
The December solstice marks the shortest day of the year in the Northern Hemisphere and longest day in the Southern Hemisphere. But the earliest sunset – or earliest sunrise if you’re south of the equator – happens before the December solstice. Many people notice this, and ask about it.
The key to understanding the earliest sunset is not to focus on the time of sunset or sunrise. The key is to focus on what is called true solar noon – the time of day that the sun reaches its highest point, in its journey across your sky.
In early December, true solar noon comes nearly 10 minutes earlier by the clock than it does at the solstice around December 22. With true noon coming later on the solstice, so will the sunrise and sunset times.
It’s this discrepancy between clock time and sun time that causes the Northern Hemisphere’s earliest sunset and the Southern Hemisphere’s earliest sunrise to precede the December solstice.
The discrepancy occurs primarily because of the tilt of the Earth’s axis. A secondary but another contributing factor to this discrepancy between clock noon and sun noon comes from the Earth’s elliptical – oblong – orbit around the sun. The Earth’s orbit is not a perfect circle, and when we’re closest to the sun, our world moves fastest in orbit. Our closest point to the sun – or perihelion – comes in early January. So we are moving fastest in orbit around now, slightly faster than our average speed of about 30 kilometers (18.5 miles) per second. The discrepancy between sun time and clock time is greater around the December solstice than the June solstice because we’re nearer the sun at this time of year.
The precise date of the earliest sunset depends on your latitude. At mid-northern latitudes, it comes in early December each year. [underline was italics in original quote; bolding was added by me in response to the questions]"Hope is a good thing; maybe the best of things."
"Beer is a sign that God loves us and wants us to be happy." -- Benjamin Franklin
"Being Irish, he had an abiding sense of tragedy, which sustained him through temporary periods of joy." -- W. B. Yeats
"People generally are most impatient with those flaws in others about which they are most ashamed of in themselves." - folk wisdom
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Re: That's Neat! 1: That's neat
Another thing that I think is really "neat."
Metro-North Railroad uses the terms "catenary" and "pantograph" routinely in its communications with riders and actually expects them to know what they mean. And most of us actually do....at least in summer, when heat causes the catenary to sag even more, increasing the risk that the pantograph will create a bulge in one of them and then get snagged and cause a breakdown."Hope is a good thing; maybe the best of things."
"Beer is a sign that God loves us and wants us to be happy." -- Benjamin Franklin
"Being Irish, he had an abiding sense of tragedy, which sustained him through temporary periods of joy." -- W. B. Yeats
"People generally are most impatient with those flaws in others about which they are most ashamed of in themselves." - folk wisdom
Comment
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Re: That's Neat! 1: That's neat
Originally posted by FreshFish View PostAnother thing that I think is really "neat."
Metro-North Railroad uses the terms "catenary" and "pantograph" routinely in its communications with riders and actually expects them to know what they mean. And most of us actually do....at least in summer, when heat causes the catenary to sag even more, increasing the risk that the pantograph will create a bulge in one of them and then get snagged and cause a breakdown.
y = cosh(x), baby.
which leads to something else that is so neat it blows the top of your head off:
"The area under the curve of cosh(x) over a finite interval is always equal to the arc length corresponding to that interval."
There is absolutely no reason why that should be true -- the measures aren't even in the same units! It's just a sort of freaking miracle, like Euler's Formula.Last edited by Kepler; 06-15-2017, 01:56 PM.Cornell University
National Champion 1967, 1970
ECAC Champion 1967, 1968, 1969, 1970, 1973, 1980, 1986, 1996, 1997, 2003, 2005, 2010
Ivy League Champion 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1977, 1978, 1983, 1984, 1985, 1996, 1997, 2002, 2003, 2004, 2005, 2012, 2014, 2018, 2019, 2020
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