Way way OT but someone might know

On Wed, 10 Jun 2015 15:15:28 -0300, pjp
wrote:

In article , lid
says...

Ken Blake wrote:

Ken Blake wrote:
Ken Blake wrote:
If you walk one mile south, then one mile east, then one mile
north, and end up where you started, where did you start?

Nobody has come up with the correct answer yet, so I will supply it.

You started in any of the following places:

1. The north pole.

2. Consider a circle of latitude exactly one mile in circumference with
the south pole its center. There are an infinite number of points
exactly one mile north of that circle, and they all answer the question.

Please explain how I could walk one mile /south/, then one mile /east/.
then one mile /north/ from that circle and be back at the exact starting
point. Your description is not logical. Once you move a mile /east/ from
the South Pole, walking due north from that point will not return you to
the starting point. What you describe can't work with the final mile
walked as *due north*.

3. There are an infinite number of circles of latitude that answer the
question. Consider a circle of latitude exactly 1/x miles (where x is an
integer) in circumference with the south pole its center. There are an
infinite number of points exactly one mile north of that circle, and
they all answer the question.

I think you have been misinformed.

Yes, there are an infinite number of correct answers.

Not to my way of thinking...

What he's pointed out is the one mile east will only stay 1 mile from
the pole


No, the "one mile east" does not stay one mile from the pole. The
circle you go one mile east on is one mile in circumference. It isn't
exactly right, because the globe isn't a plane, but the distance from
the circle to the pole is approximately 1/(2*pi) miles, or .1591...
miles. And of course for the 1/2 mile, 1/3 mile, etc. circles, the
distance from the pole is even less.


if you follow along the "1 mile circle" around the pole and not
in some linear line "due east" at 90 degrees to the pole (which of
course takes you also out into space .


Yes, but "East" does not mean out into space. All the
directions--north, south, east, and west--always follow the curvature
of the earth. If it didn't, you couldn't say things like "New York" is
East of San Francisco."

Ken Blake wrote:

s I said, reread what I wrote. You've clearly misunderstood it.

One mile due south, one mile due east, one mile due north (your original
post) cannot be done in the neighborhood of the South Pole.

And that's my final word on the subject.

--
-bts
-This space for rent, but the price is high

On Wed, 10 Jun 2015 14:33:10 -0500, Mark Lloyd
wrote:



How about starting 1 mile north of the south pole?


Not possible. If you did that, after walking one mile south, you would
be at the south pole, and it's not possible to walk east from there.

On Wed, 10 Jun 2015 19:42:31 +0000 (UTC), "Beauregard T. Shagnasty"
wrote:

Ken Blake wrote:

s I said, reread what I wrote. You've clearly misunderstood it.

One mile due south, one mile due east, one mile due north (your original
post) cannot be done in the neighborhood of the South Pole.

And that's my final word on the subject.


I'll refrain from arguing with you, because I don't know to explain it
any more clearly than I did.

On Wed, 10 Jun 2015 12:49:05 -0700, Ken Blake
wrote:

On Wed, 10 Jun 2015 19:42:31 +0000 (UTC), "Beauregard T. Shagnasty"
wrote:

Ken Blake wrote:

s I said, reread what I wrote. You've clearly misunderstood it.

One mile due south, one mile due east, one mile due north (your original
post) cannot be done in the neighborhood of the South Pole.

And that's my final word on the subject.


I'll refrain from arguing with you, because I don't know to explain it
any more clearly than I did.


As I said, I wasn't planning on saying any more to you about this, but
the following just occurred to me, and perhaps you might understand it
if I put it this way:

Suppose the question was "If you walk one mile south, then 24,901.55
miles east, then one mile north, and end up where you started, where
did you start?"

The answer, very obviously, is at any of an infinite number of places
one mile north of the equator.

Change 24,901.55 miles to one mile, and you obviously get a smaller
circle of latitude, much farther south (close to the south pole). But
the answer is essentially the same: walk one mile south to the circle,
walk east to go completely around the circle, returning to the point
where you started on the circle, then walk one north to get back where
you started.

On Wed, 10 Jun 2015 17:46:45 -0400, Wolf K
wrote:

On 2015-06-10 3:28 PM, Ken Blake wrote:
[...]
You start walking south, not one mile north of the south pole, but one
mile north of the circle with a one mile circumference around the
south pole. When you finish walking one mile south, you are now at a
point on that circle, not at the south pole.

You now walk east for one mile. That takes you completely around the
circle, returning you to the point from which you started walking
around the circle

Walking one mile north now returns you to where you started.

Nice.


Thanks.

On Wed, 10 Jun 2015 16:08:27 -0700, Stormin' Norman
wrote:

On Wed, 10 Jun 2015 12:14:10 -0700, Ken Blake
wrote:

On Wed, 10 Jun 2015 11:27:41 -0500, Char Jackson
wrote:

On Wed, 10 Jun 2015 11:56:43 -0400, ". . .winston"
wrote:


The airport in Detroit is north of Canada. The airport outside of the
Detroit city limits (Romulus, MI). is west of Canada.

Both are in the same county, only one in Detroit.

Sorry, Homey, that don't fly. The question referred to "the Detroit
airport", and that's the "Detroit Metropolitan Wayne County Airport",
located southwest of the city center, between I-275, I-94, and I-75. Flying
due south of there doesn't take you into/across Canada.


Don't blame Winston if I asked the question improperly. It was my
fault, not his. But I clearly meant the airport *in* Detroit that he
mentioned.


In my opinion, your question was clear and concise, especially when it
was more than obvious the answer was not a simplistic one.



Thanks, But I think I should have said "the airport in Detroit," not
"the Detroit airport."

On 6/9/2015 7:17 AM, Mark Lloyd wrote:
On 06/08/2015 10:10 AM, Char Jackson wrote:

[snip]

Those were some of his questions that have stuck with me. Good times.

one I remember:

If a doctor gives you a bottle of 3 pills then tells you to take one now
and then 1 each hour, how long do they last?

The answer the teacher wanted was 2 hours.

If you have to take a second pill after one hour and a third pill an
hour later it means that each pill only lasts for one hour. Would not
the answer then be 3 hours?

On 6/10/2015 5:41 PM, Wolf K wrote:
On 2015-06-10 8:19 PM, Doug Chadduck wrote:
On 6/9/2015 7:17 AM, Mark Lloyd wrote:
On 06/08/2015 10:10 AM, Char Jackson wrote:

[snip]

Those were some of his questions that have stuck with me. Good
times.

one I remember:

If a doctor gives you a bottle of 3 pills then tells you to take one now
and then 1 each hour, how long do they last?

The answer the teacher wanted was 2 hours.

If you have to take a second pill after one hour and a third pill an
hour later it means that each pill only lasts for one hour. Would not
the answer then be 3 hours?

Hey, don't break the box! It makes a mess of people's minds.

Hah!

But so much fun when one can pull it off.

Grin

On Wed, 10 Jun 2015 17:19:28 -0700, Doug Chadduck
wrote:

On 6/9/2015 7:17 AM, Mark Lloyd wrote:
On 06/08/2015 10:10 AM, Char Jackson wrote:

[snip]

Those were some of his questions that have stuck with me. Good times.

one I remember:

If a doctor gives you a bottle of 3 pills then tells you to take one now
and then 1 each hour, how long do they last?

The answer the teacher wanted was 2 hours.

If you have to take a second pill after one hour and a third pill an
hour later it means that each pill only lasts for one hour. Would not
the answer then be 3 hours?

The effect of the pills lasts for 3 hours, but the pills themselves only
last for 2 hours.

Take the first one at noon, the second one at 1PM, and the last one at 2PM.
The pills are all gone after two hours.

As time references, they could be considered T0, T1, and T2.


--

Char Jackson

Char Jackson wrote:
On Wed, 10 Jun 2015 12:50:24 -0400, ". . .winston"
wrote:

Char Jackson wrote:
On Wed, 10 Jun 2015 11:56:43 -0400, ". . .winston"
wrote:

Char Jackson wrote:
On Tue, 09 Jun 2015 08:52:19 -0700, Ken Blake wrote:

On Tue, 09 Jun 2015 11:07:26 -0400, Tim Slattery
wrote:

Ken Blake wrote:


Here are two mo

If you fly due south from the Detroit airport, what's the first
foreign country you fly over?

Canada, of course


Right, of course. That was the easy one.

I guess it's safe to assume that the "Detroit [Michigan] airport" hasn't
always been located where it is now, because currently it's not north of any
part of Canada that I can see. It's north of Cuba, though.



The airport in Detroit is north of Canada. The airport outside of the
Detroit city limits (Romulus, MI). is west of Canada.

Both are in the same county, only one in Detroit.

Sorry, Homey, that don't fly. The question referred to "the Detroit
airport", and that's the "Detroit Metropolitan Wayne County Airport",
located southwest of the city center, between I-275, I-94, and I-75. Flying
due south of there doesn't take you into/across Canada.

Every city of significant size has multiple airports, but only one is
typically "the" airport. The others are usually executive airports,
typically restricted to private planes, charters, etc.


No directions needed, know exactly where each are.

Only one airport *in* Detroit, and it is north of Canada.

Good luck then. If you take a commercial flight to Detroit, you're going to
be quite lost if you think you're going to anything other than "the Detroit
airport". You might want to plan to take a taxi when you get there. ;-)


No, for a commercial flight one would arrive at one of two terminals.
Neither in Detroit but in Romulus, MI.

There is only one airport in Detroit (north of Canada)

The question Ken asked is time sensitive too.

In the past a commercial flight could/would have landed at Willow Run
(further west of Detroit) in Van Buren Township or the airport *in*
Detroit but not in Romulus.

The question did not specify any specific airport, it only specified if
one flies south from the 'Detroit' airport. There is only one Detroit
airport.




--
...winston
msft mvp consumer apps

Char Jackson wrote:
On Wed, 10 Jun 2015 16:57:11 +0000, Stormin' Norman
wrote:

On Wed, 10 Jun 2015 11:27:41 -0500, Char Jackson wrote:

On Wed, 10 Jun 2015 11:56:43 -0400, ". . .winston"
wrote:

Char Jackson wrote:
On Tue, 09 Jun 2015 08:52:19 -0700, Ken Blake wrote:

On Tue, 09 Jun 2015 11:07:26 -0400, Tim Slattery
wrote:

Ken Blake wrote:


Here are two mo

If you fly due south from the Detroit airport, what's the first
foreign country you fly over?

Canada, of course


Right, of course. That was the easy one.

I guess it's safe to assume that the "Detroit [Michigan] airport" hasn't
always been located where it is now, because currently it's not north of any
part of Canada that I can see. It's north of Cuba, though.



The airport in Detroit is north of Canada. The airport outside of the
Detroit city limits (Romulus, MI). is west of Canada.

Both are in the same county, only one in Detroit.

Sorry, Homey, that don't fly. The question referred to "the Detroit
airport", and that's the "Detroit Metropolitan Wayne County Airport",
located southwest of the city center, between I-275, I-94, and I-75. Flying
due south of there doesn't take you into/across Canada.

Every city of significant size has multiple airports, but only one is
typically "the" airport. The others are usually executive airports,
typically restricted to private planes, charters, etc.


As was pointed out yesterday, the Coleman A. Young international airport is the
ONLY airport within the city limits of Detroit. It was also formerly known as
the Detroit City Airport. This airport is, in fact, due north of Windsor
Ontario.

http://en.wikipedia.org/wiki/Coleman...tional_Airport

Maturity means being able to admit when you are wrong without being embarrassed.
It was a fun little puzzle.

I guess you're trying to say that that was the Detroit airport back when the
question was first proposed, but since then the Detroit airport has
apparently been moved and is no longer north of Canada.

I'm using Google maps and Mapquest. Which map are you using that still
thinks the Detroit airport is somewhere else?


Never moved...in fact all three airports remain in the same location.
One in Detroit, one in Romulus, and one in VanBuren Township.
One north of Canada and two others - west, northwest, and southwest of
Canada.

--
...winston
msft mvp consumer apps

Ken Blake wrote:
On Wed, 10 Jun 2015 11:27:41 -0500, Char Jackson
wrote:

On Wed, 10 Jun 2015 11:56:43 -0400, ". . .winston"
wrote:


The airport in Detroit is north of Canada. The airport outside of the
Detroit city limits (Romulus, MI). is west of Canada.

Both are in the same county, only one in Detroit.

Sorry, Homey, that don't fly. The question referred to "the Detroit
airport", and that's the "Detroit Metropolitan Wayne County Airport",
located southwest of the city center, between I-275, I-94, and I-75. Flying
due south of there doesn't take you into/across Canada.


Don't blame Winston if I asked the question improperly. It was my
fault, not his. But I clearly meant the airport *in* Detroit that he
mentioned.


Lol...I knew the intent of the question because it's an age old one.

Having flown in and out of almost all the airports in MI, I'm quite
confident I knew where each of them reside. In SE MI there is only one
in Detroit, two others are not in Detroit.

The airport in Detroit, is the only airport that would also meet all
'trick' pieces to the question over an extended period of time for
commercial flights coming into this area.

Before the airport in Romulus, MI started housing commercial flights,
those flights first came into Willow Run (Van Buren township) or the
airport in the city of Detroit...and only the airport in Detroit is
north of Canada.

Thus your question as worded only had one answer. Canada

--
...winston
msft mvp consumer apps

Ken Blake wrote:
On Tue, 09 Jun 2015 11:36:24 -0500, Char Jackson
wrote:
Ken Blake wrote:

If you fly due south from the Detroit airport, what's the first
foreign country you fly over?


Looks like Cuba to me. Canada appears to lie off to the east and north.

Perhaps you're right and they've moved the airport. It *used to be*
Canada.


Lol...they didn't move the airport it's been in the same location since
1930.

There are three airports in Wayne County in Michigan.
The airport *in* Detroit is North of Canada.

The other two are in Romulus, MI and VanBuren Township (not in Detroit,
and both are both west, northwest and southwest of Canada.


--
...winston
msft mvp consumer apps

Char Jackson wrote:
On Wed, 10 Jun 2015 15:45:08 +0000 (UTC), "Beauregard T. Shagnasty"
wrote:

Ken Blake wrote:

Ken Blake wrote:
Ken Blake wrote:
If you walk one mile south, then one mile east, then one mile
north, and end up where you started, where did you start?

Nobody has come up with the correct answer yet, so I will supply it.

You started in any of the following places:

1. The north pole.

2. Consider a circle of latitude exactly one mile in circumference with
the south pole its center. There are an infinite number of points
exactly one mile north of that circle, and they all answer the question.

Please explain how I could walk one mile /south/, then one mile /east/.
then one mile /north/ from that circle and be back at the exact starting
point. Your description is not logical. Once you move a mile /east/ from
the South Pole, walking due north from that point will not return you to
the starting point. What you describe can't work with the final mile
walked as *due north*.

Thanks for asking. I don't get it, either, but I got lost even before you
did. If I start at a point a mile from the south pole, (all of those
possible points will be a mile NORTH of the pole), and I walk a mile south,
I'll be at the south pole. I can't walk east from there since every
direction is north. Since the premise of the question requires one to walk
east after walking south, the south pole is eliminated.

The north pole still works, of course, and the equator works if you consider
the entire equator to be a single thing. For the south pole to work, the
premise of the question has to be reversed.


You're reasoning actually makes the most sense.

Some around here might be familiar with the term 'antipode'

On the North Pole the antipode is the South Pole.
- If at the North Pole every direction is South (one can't go east or
west or north)


Likewise every direction at the South Pole points north (one can't go
east, west or south)

Thus your comment of a mile from the South Pole in any direction is
North. If traveling back from that mile away to the South Pole, the
only direction after arriving at the South Pole would be north.

--
...winston
msft mvp consumer apps