Sunrise at the South Pole

C

Charmed

#1
Dear Covers:

It's the dawn of a new day in Antarctica as autumn begins in Earth's northern hemisphere.

http://science.nasa.gov/newhome/headlines/ast23sep99_1.htm

http://www.timeanddate.com/worldclock/astronomy.html?n=468

In the link below you will find photographs of the sun rising at the South Pole where many countries now have permanent stations. Humans, mostly scientists, specifically astronomers, live there throughout the year. The astronomers take advantage of the "day" that lasts for six months at a time on the South Pole. The sun rises once each year and sets just once each year. See also where the sun rose first in the new millennium.

http://astro.uchicago.edu/home/web/gd1/sunrise.html

http://www.wonderquest.com/southpole-lizard-starbook.htm

http://aa.usno.navy.mil/faq/docs/first_sunrise.html

Have a great day, Anarcticans! And, the same for the rest here in the upper latitudes.

Charmed
 
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C

Charmed

#3
About grapefruits

Underdog said:
Say,
Is this "balance a raw egg on it's end" day.
What container due to propose, Underdog? Styrofoam or cardboard?

http://elsmar.com/Forums/showthread.php?t=9554&highlight=Ramakrishnan

Anyway, you reminded about an interesting story about the Chairman and CEO of J. C. Penny (I think that was him and the book was Rise and Fall of J. C. Penny.). When he was traveling and was staying at one of the premier hotels, the employees were told that they had a very distinguished guest. Mr. Penny would have a grapefruit for breakfast. He would instruct that the grapefruit be cut in half and he would always take the bottom half. On this day, when he came for his breakfast, he took a grapefruit and gestured with his hands that it be cut and he be given the lower half. The instructions were duly obeyed. Then, the hotel employee asked him, "Mr. Penny, can I ask you why you want the lower half?"

Mr. Penny said, "Simple. Gravity. More juice in the lower half."

So, making a raw egg stand on its head on the day of the equinox? Gravity might just be doing some funny things even to an egg.
 
Last edited by a moderator:

Wes Bucey

Quite Involved in Discussions
#4
An apocryphal tale:
An emerging nation was trying to foster a tourism industry and joint-ventured a luxury hotel dedicated to service. They invited "movers and shakers" from many countries to the opening weekend as guests of the country.

One American came down to breakfast on the first day and asked for breakfast to be "two eggs, over easy, bacon, hash browns, orange juice, coffee, and rye toast on the side."

Half an hour passed and other patrons who had come after the American were served while he still waited.

Exhibiting the typical impatience of a Yank, he got up and brushed his way to the kitchen where he saw the hapless waiter and the chef desperately trying to balance the rye toast on edge (the side.)
 
C

Carl Keller

#5
I believe Mr. Penny was just eccentric.

The Grapefruit, being turned on it's side when cut would have equal amounts regardless, not to mention that only the fruit cells ruptured by the knife would "leak", the rest will retain their juice regardless of top or bottom.

However I'm sure the hotel employee did not question the nonsense answer.

Carl-
 
C

Charmed

#6
Balancing act

Now, here's the real challenge! Balance an egg, or a rye (on the side), when riding this plane.

Zero gravity flights – in a 727 cargo plane going through steep climbs and dives (parabolic manuevers). Briefly, one can experience weightlessness and float freely. Just see the video.

Someone came up with the ingenious idea of offering such flights, long used to train astronauts, commercially. The flights are already sold out.

http://video.msn.com/video/p.htm?i=...e and Living&mi=NBC Today&p=Source_Today Show

By the way, the sun is still rising on the South Pole. It takes a couple of days for its rise up above the horizon down there.
 

Wes Bucey

Quite Involved in Discussions
#7
this is the flight commonly referred to as the vomit comet because so many digestive systems are unprepared for weightlessness.
 
C

Charmed

#8
So much that we take for granted

Carl Keller said:
I believe Mr. Penny was just eccentric.

The Grapefruit, being turned on it's side when cut would have equal amounts regardless, not to mention that only the fruit cells ruptured by the knife would "leak", the rest will retain their juice regardless of top or bottom.

However I'm sure the hotel employee did not question the nonsense answer.

Carl-
Dear Carl:

Yes, I agree 100% that Mr. Penny was eccentric, even the author of the book, if I remember corectly, says so.

But, now think about this. Even when the grapefruit is turned on it's side when cut, gravity must act on it. Otherwise, it would be floating in space! The grapefruit is being cut vertically with one hand holding the on half of the fruit that is being cut.

Mr. Penny had obviously thought through these subtleties of Newton's idea and came up with his grapefruit cutting ritual: the fruit would be sliced, horizontally, with one hand obviously being held on the top of the grapefruit and the knife in the other hand.

Anyway, I just wanted to call attention to the fact that even here on earth, there is so much going on that we take for granted, based on our own everyday common experiences. Can I carry a bag full of eggs with me for that zero-g ride in the 727, or cut a grapefruit, or watch a pendulum clock swinging?

I don't know what it is like to live on the South Pole for a whole year, and how the biological clock would adjust to a six month long day and a six month long night. I have seen photographs of of people standing on the South Pole with nothing more than the shirt on their backs - when it is summer in Antarctica and the temperature is - 100 F. The human body is amazing and can adopt to even such extremes. BTW, the temperature at the Amundsen Scott South Pole station now is -94 F (- 70 C) and it is partly cloudy. The five-day forecast says 10 F by Tuesday next.

http://www.wunderground.com/global/stations/89009.html

I have also included a PowerPoint file - a physics lecture that I downloaded from the Internet author is not known - which shows how the earth's position relative to the sun's rays change during the course of the year. It starts with Newton's falling apple!
 

Attachments

J

Jim Howe

#9
Charmed said:
Dear Carl:

Yes, I agree 100% that Mr. Penny was eccentric, even the author of the book, if I remember corectly, says so.

But, now think about this. Even when the grapefruit is turned on it's side when cut, gravity must act on it. Otherwise, it would be floating in space! The grapefruit is being cut vertically with one hand holding the on half of the fruit that is being cut.

Mr. Penny had obviously thought through these subtleties of Newton's idea and came up with his grapefruit cutting ritual: the fruit would be sliced, horizontally, with one hand obviously being held on the top of the grapefruit and the knife in the other hand.

Anyway, I just wanted to call attention to the fact that even here on earth, there is so much going on that we take for granted, based on our own everyday common experiences. Can I carry a bag full of eggs with me for that zero-g ride in the 727, or cut a grapefruit, or watch a pendulum clock swinging?

I don't know what it is like to live on the South Pole for a whole year, and how the biological clock would adjust to a six month long day and a six month long night. I have seen photographs of of people standing on the South Pole with nothing more than the shirt on their backs - when it is summer in Antarctica and the temperature is - 100 F. The human body is amazing and can adopt to even such extremes. BTW, the temperature at the Amundsen Scott South Pole station now is -94 F (- 70 C) and it is partly cloudy. The five-day forecast says 10 F by Tuesday next.

http://www.wunderground.com/global/stations/89009.html

I have also included a PowerPoint file - a physics lecture that I downloaded from the Internet author is not known - which shows how the earth's position relative to the sun's rays change during the course of the year. It starts with Newton's falling apple!
My computer at work has no sound card so I cannot hear the soundtrack. The power point is incomplete without narration. if there is a sound track I will forward it to home computer for later viewing. I have a young nephew who is interested in such things! Sound track??? :thanx:
 
C

Charmed

#10
No soundtrack

Jim Howe said:
My computer at work has no sound card so I cannot hear the soundtrack. The power point is incomplete without narration. if there is a sound track I will forward it to home computer for later viewing. I have a young nephew who is interested in such things! Sound track??? :thanx:

Dear Jim:

There is no soundtrack for the South Pole weather station. As for the PowerPoint, I cannot do much, that's how it came - there was no narration. The original had 99 slides, I edited it and toi make it shorter.
 
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