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Message |
Postman
science forum beginner
Joined: 11 May 2005
Posts: 1
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 Posted: Wed May 11, 2005 7:59 pm Post subject:
Experiment in Time
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A group of scientists decided to build a house on a very high platform on
top of a Five miles high pole. They also built a house at the base of the
pole. They persuaded a man to live in the house on the high platform and
they also persuaded a man to live in the house at the base of the pole.
Both men agreed that each day at midday they would leave their houses and
goto their telescopes which were pointed at each other. There they would
observe eachother and they would wave at each other and they would log what
they had seen. Each man was given a atomic clock to keep time.
After a few years the scientists came to the man at the base of the pole
and checked his log. His log stated that each day at midday the man on the
high platform came out and waved at him.
After ten years the scientists came back again and were slightly schocked
to find that this log continued to show that the man on the high platform
came out every day at midday and waved.
After fifteen years when there was still no change they phoned the man
onthe high platform and asked him about his atomic clock and how it was
able to show midday so accurately after such a long time. The man replied
"I think the clock was broken as it started to go wrong quite soon after I
came up here. But it was alright I just used the Sun as it is the most
accurate clock of all"
postman |
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N:dlzc D:aol T:com (dlzc)
science forum Guru
Joined: 25 Mar 2005
Posts: 2835
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| Posted: Wed May 11, 2005 10:25 pm Post subject:
Re: Experiment in Time
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Dear Postman:
"Postman" <posty@spam.mcgarrydware.com> wrote in message
news:42828025$0$93765$ed2619ec@ptn-nntp-reader01.plus.net...
| Quote: | A group of scientists decided to build a house
on a very high platform on top of a Five miles
high pole. They also built a house at the base
of the pole. They persuaded a man to live in
the house on the high platform and they also
persuaded a man to live in the house at the
base of the pole. Both men agreed that each
day at midday they would leave their houses
and goto their telescopes which were pointed
at each other. There they would observe each
other and they would wave at each other and
they would log what they had seen. Each
man was given a atomic clock to keep time.
After a few years the scientists came to the
man at the base of the pole and checked his
log. His log stated that each day at midday
the man on the high platform came out and
waved at him.
After ten years the scientists came back
again and were slightly schocked to find
that this log continued to show that the
man on the high platform came out every
day at midday and waved. After fifteen
years when there was still no change they
phoned the man on the high platform and
asked him about his atomic clock and
how it was able to show midday so
accurately after such a long time. The
man replied "I think the clock was broken
as it started to go wrong quite soon after I
came up here. But it was alright I just
used the Sun as it is the most
accurate clock of all"
|
Not. "At midday" happens just a tad sooner for the man at the
top of the pole, since he is then closer to the Sun. Silly and
pointless story. Obviously one of the men was lying...
David A. Smith |
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Bernardz
science forum beginner
Joined: 25 Mar 2005
Posts: 13
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| Posted: Thu May 12, 2005 7:27 am Post subject:
Re: Experiment in Time
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In article <Roxge.5741$eU.4276@fed1read07>, "N:dlzc D:aol T:com \(dlzc
\)" <N: dlzc1 D:cox T:net@nospam.com> says...
| Quote: | Dear Postman:
"Postman" <posty@spam.mcgarrydware.com> wrote in message
news:42828025$0$93765$ed2619ec@ptn-nntp-reader01.plus.net...
A group of scientists decided to build a house
on a very high platform on top of a Five miles
high pole. They also built a house at the base
of the pole. They persuaded a man to live in
the house on the high platform and they also
persuaded a man to live in the house at the
base of the pole. Both men agreed that each
day at midday they would leave their houses
and goto their telescopes which were pointed
at each other. There they would observe each
other and they would wave at each other and
they would log what they had seen. Each
man was given a atomic clock to keep time.
After a few years the scientists came to the
man at the base of the pole and checked his
log. His log stated that each day at midday
the man on the high platform came out and
waved at him.
After ten years the scientists came back
again and were slightly schocked to find
that this log continued to show that the
man on the high platform came out every
day at midday and waved. After fifteen
years when there was still no change they
phoned the man on the high platform and
asked him about his atomic clock and
how it was able to show midday so
accurately after such a long time. The
man replied "I think the clock was broken
as it started to go wrong quite soon after I
came up here. But it was alright I just
used the Sun as it is the most
accurate clock of all"
Not. "At midday" happens just a tad sooner for the man at the
top of the pole, since he is then closer to the Sun. Silly and
pointless story. Obviously one of the men was lying...
David A. Smith
|
Twelve noon would be the same for both. What it is is that the man on
the tower would have a slightly shorter day.
--
My advice to a traveller is to make sure that his suitcase is locked.
Observations of Bernard - No 75 |
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N:dlzc D:aol T:com (dlzc)
science forum Guru
Joined: 25 Mar 2005
Posts: 2835
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| Posted: Thu May 12, 2005 11:23 am Post subject:
Re: Experiment in Time
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Dear Bernardz:
"Bernardz" <Bernard_zzz@REMOVEhotmail.com> wrote in message
news:MPG.1cedcc7da7b4a50b989d33@news...
| Quote: | In article <Roxge.5741$eU.4276@fed1read07>, "N:dlzc D:aol T:com
\(dlzc
\)" <N: dlzc1 D:cox T:net@nospam.com> says...
Dear Postman:
"Postman" <posty@spam.mcgarrydware.com> wrote in message
news:42828025$0$93765$ed2619ec@ptn-nntp-reader01.plus.net...
A group of scientists decided to build a house
on a very high platform on top of a Five miles
high pole. They also built a house at the base
of the pole. They persuaded a man to live in
the house on the high platform and they also
persuaded a man to live in the house at the
base of the pole. Both men agreed that each
day at midday they would leave their houses
and goto their telescopes which were pointed
at each other. There they would observe each
other and they would wave at each other and
they would log what they had seen. Each
man was given a atomic clock to keep time.
After a few years the scientists came to the
man at the base of the pole and checked his
log. His log stated that each day at midday
the man on the high platform came out and
waved at him.
After ten years the scientists came back
again and were slightly schocked to find
that this log continued to show that the
man on the high platform came out every
day at midday and waved. After fifteen
years when there was still no change they
phoned the man on the high platform and
asked him about his atomic clock and
how it was able to show midday so
accurately after such a long time. The
man replied "I think the clock was broken
as it started to go wrong quite soon after I
came up here. But it was alright I just
used the Sun as it is the most
accurate clock of all"
Not. "At midday" happens just a tad
sooner for the man at the top of the pole,
since he is then closer to the Sun. Silly
and pointless story. Obviously one of the
men was lying...
Twelve noon would be the same for both.
|
No. Light from "12 noon" lands on the man below some
microseconds later... well within the resolution of most atomic
clocks.
| Quote: | What it is is that the man on
the tower would have a slightly shorter day.
|
Longer. His clock runs slightly faster, so one Earth rotation
holds a few more nanoseconds.
David A. Smith |
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Dr ***
science forum Guru
Joined: 04 May 2005
Posts: 592
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| Posted: Thu May 12, 2005 1:03 pm Post subject:
Re: Experiment in Time
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"Postman" <posty@spam.mcgarrydware.com> wrote in message
news:42828025$0$93765$ed2619ec@ptn-nntp-reader01.plus.net...
A group of scientists decided to build a house on a very high platform on
top of a Five miles high pole. They also built a house at the base of the
pole. They persuaded a man to live in the house on the high platform and
they also persuaded a man to live in the house at the base of the pole.
Both men agreed that each day at midday they would leave their houses and
goto their telescopes which were pointed at each other. There they would
observe eachother and they would wave at each other and they would log what
they had seen. Each man was given a atomic clock to keep time.
After a few years the scientists came to the man at the base of the pole
and checked his log. His log stated that each day at midday the man on the
high platform came out and waved at him.
After ten years the scientists came back again and were slightly schocked
to find that this log continued to show that the man on the high platform
came out every day at midday and waved.
After fifteen years when there was still no change they phoned the man
onthe high platform and asked him about his atomic clock and how it was
able to show midday so accurately after such a long time. The man replied
"I think the clock was broken as it started to go wrong quite soon after I
came up here. But it was alright I just used the Sun as it is the most
accurate clock of all"
postman
dr
Common frame to both men the sun but the man at the base should have sliped
forward his idea of midday if he had been going by his clock.
--
Dr *** time/length/energy
http://home.freeuk.com/paulps/
Some updates the turnips are coming
up nicely. Ooh ah.{ |
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bernardz
science forum beginner
Joined: 13 May 2005
Posts: 10
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| Posted: Fri May 13, 2005 4:14 am Post subject:
Re: Experiment in Time
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N:dlzc D:aol T:com (dlzc) wrote:
| Quote: | Dear Bernardz:
"Bernardz" <Bernard_zzz@REMOVEhotmail.com> wrote in message
news:MPG.1cedcc7da7b4a50b989d33@news...
In article <Roxge.5741$eU.4276@fed1read07>, "N:dlzc D:aol T:com
\(dlzc
\)" <N: dlzc1 D:cox T:net@nospam.com> says...
Dear Postman:
"Postman" <posty@spam.mcgarrydware.com> wrote in message
news:42828025$0$93765$ed2619ec@ptn-nntp-reader01.plus.net...
A group of scientists decided to build a house
on a very high platform on top of a Five miles
high pole. They also built a house at the base
of the pole. They persuaded a man to live in
the house on the high platform and they also
persuaded a man to live in the house at the
base of the pole. Both men agreed that each
day at midday they would leave their houses
and goto their telescopes which were pointed
at each other. There they would observe each
other and they would wave at each other and
they would log what they had seen. Each
man was given a atomic clock to keep time.
After a few years the scientists came to the
man at the base of the pole and checked his
log. His log stated that each day at midday
the man on the high platform came out and
waved at him.
After ten years the scientists came back
again and were slightly schocked to find
that this log continued to show that the
man on the high platform came out every
day at midday and waved. After fifteen
years when there was still no change they
phoned the man on the high platform and
asked him about his atomic clock and
how it was able to show midday so
accurately after such a long time. The
man replied "I think the clock was broken
as it started to go wrong quite soon after I
came up here. But it was alright I just
used the Sun as it is the most
accurate clock of all"
Not. "At midday" happens just a tad
sooner for the man at the top of the pole,
since he is then closer to the Sun. Silly
and pointless story. Obviously one of the
men was lying...
Twelve noon would be the same for both.
No. Light from "12 noon" lands on the man below some
microseconds later... well within the resolution of most atomic
clocks.
What it is is that the man on
the tower would have a slightly shorter day.
Longer. His clock runs slightly faster, so one Earth rotation
holds a few more nanoseconds.
|
Are we talking of the guy on the tower?
If an outside observer was looking at both guys, the days length is the
same for both. One just starts a bit ealier everyday.
However the tower man clock would faster then the ground bloke so the
tower man's day is a bit quicker.
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Martin Hogbin
science forum Guru
Joined: 30 Apr 2005
Posts: 366
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| Posted: Fri May 13, 2005 8:45 am Post subject:
Re: Experiment in Time
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"Postman" <posty@spam.mcgarrydware.com> wrote in message news:42828025$0$93765$ed2619ec@ptn-nntp-reader01.plus.net...
| Quote: | A group of scientists decided to build a house on a very high platform on
top of a Five miles high pole.
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I very much doubt that.
Martin Hogbin |
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N:dlzc D:aol T:com (dlzc)
science forum Guru
Joined: 25 Mar 2005
Posts: 2835
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| Posted: Fri May 13, 2005 11:21 am Post subject:
Re: Experiment in Time
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Dear bernardz:
"bernardz" <bernardz@mail.com> wrote in message
news:1115964860.462521.53010@f14g2000cwb.googlegroups.com...
| Quote: |
N:dlzc D:aol T:com (dlzc) wrote:
....
Twelve noon would be the same for both.
No. Light from "12 noon" lands on the
man below some microseconds later...
well within the resolution of most atomic
clocks.
What it is is that the man on
the tower would have a slightly shorter
day.
Longer. His clock runs slightly faster, so
one Earth rotation holds a few more
nanoseconds.
Are we talking of the guy on the tower?
|
Yes. Pound-Rebka, GPS. A clock at higher altitude in a gravity
well runs faster than a lower clock. This puts more "clock
ticks" into a "noon" to "noon" day.
| Quote: | If an outside observer was looking at both
guys, the days length is the same for both.
One just starts a bit ealier everyday.
|
The description of the problem is to describe what *two different
observers, in two different locations in a gravity well* say. A
third observer will complicate matters more. We can measure
finer than this, and there is a difference.
| Quote: | However the tower man clock would faster
then the ground bloke so the tower man's
day is a bit quicker.
|
The day has more clock ticks in it for the man at the top of the
tower, than the man at the bottom of the tower. "Longer" and
"quicker" don't make sense as you use it here.
David A. Smith |
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