Since I've been enjoying the topics and discussions of this news
group, and I see that there are many posters who are quite bright, I
decided to pose a question concerning the laws of physics to
stimulate the group's curiosity.

The question is: If you hang two plumb bobs, say 50 feet apart are the
strings parallel?

"GROVER" wrote in message
oups.com...
Since I've been enjoying the topics and discussions of this news
group, and I see that there are many posters who are quite bright, I
decided to pose a question concerning the laws of physics to
stimulate the group's curiosity.

The question is: If you hang two plumb bobs, say 50 feet apart are the
strings parallel?


I would say they are as close to parallel as one would care for them to be.
If you want to get technical, they are not exactly parallel due to the
curvature of the earth. One would assume that the bottom of the plumb bob
is pointing at the exact centre of the earth due to gravity and since we're
on a ball, they wouldn't be exactly parallel. At 50 feet apart, the
difference wouldn't be enough to care about.

For woodworking - parallel enough.
For scientific purposes - not quite.
This is assuming, of course, that you're doing this on the earth's surface.

GROVER wrote:
Since I've been enjoying the topics and discussions of this news
group, and I see that there are many posters who are quite bright, I
decided to pose a question concerning the laws of physics to
stimulate the group's curiosity.

The question is: If you hang two plumb bobs, say 50 feet apart are the
strings parallel?

The question is: If you hang two plumb bobs, say 50 feet apart are the
strings parallel?

Theoretically, no, but I doubt if you could measure the difference if
they were just 50 feet apart. If the 2 bobs were, say, a couple
thousand miles apart, they'd both be pointing towards the center of
the earth, so they definitely wouldn't be parallel.
Isn't that the principle that led to the first calculations of the
earth's diameter? Some guy looking down wells... OK, google tells me
it was Eratosthenes, in Alexandria.
Andy

On Apr 20, 1:46 pm, GROVER wrote:
Since I've been enjoying the topics and discussions of this news
group, and I see that there are many posters who are quite bright, I
decided to pose a question concerning the laws of physics to
stimulate the group's curiosity.

The question is: If you hang two plumb bobs, say 50 feet apart are the
strings parallel?

You guys are right on the money. I'll have to thinks up a harder
question if I hope to stump the group.Joe G

Ok then... In recent news;
***
In a recent study, mathematician George Sparling of the University of
Pittsburgh examines a fundamental question pondered since the time of
Pythagoras, and still vexing scientists today: what is the nature of
space and time? After analyzing different perspectives, Sparling offers
an alternative idea: space-time may have six dimensions, with the extra
two being time-like.
***

So if I turn a six dimensional bowl on my quantum lathe, primarily
taking advantage of the additional time-like dimensions, how long do I
have to work the finish in before it dries?

GROVER wrote:

Since I've been enjoying the topics and discussions of this news
group, and I see that there are many posters who are quite bright, I
decided to pose a question concerning the laws of physics to
stimulate the group's curiosity.

The question is: If you hang two plumb bobs, say 50 feet apart are the
strings parallel?

Two answers:
A1) No, since each will hang toward the center of the earth (ignoring
gravitational pulls of other less massive or more distant bodies).

A2) Yes, if the correctness of the answer is going to be determined by
empirical methods using measurement tools available to the average
homeowner.
--
Alex -- Replace "nospam" with "mail" to reply by email. Checked infrequently.

GROVER wrote:
On Apr 20, 1:46 pm, GROVER wrote:
Since I've been enjoying the topics and discussions of this news
group, and I see that there are many posters who are quite bright, I
decided to pose a question concerning the laws of physics to
stimulate the group's curiosity.

The question is: If you hang two plumb bobs, say 50 feet apart are the
strings parallel?

You guys are right on the money. I'll have to thinks up a harder
question if I hope to stump the group.Joe G

Hell, to hear the way some folks around here talk, you'd think their
table saws were adjusted to tighter tolerances than the differences
between those two plumb bobs. :-)

Russ wrote:
Ok then... In recent news;
***
In a recent study, mathematician George Sparling of the University of
Pittsburgh examines a fundamental question pondered since the time of
Pythagoras, and still vexing scientists today: what is the nature of
space and time? After analyzing different perspectives, Sparling offers
an alternative idea: space-time may have six dimensions, with the extra
two being time-like.
***

So if I turn a six dimensional bowl on my quantum lathe, primarily
taking advantage of the additional time-like dimensions, how long do I
have to work the finish in before it dries?


That one is ridiculously easy..... It depends on what rpm you're
running the lathe.

GROVER wrote:

Since I've been enjoying the topics and discussions of this news
group, and I see that there are many posters who are quite bright, I
decided to pose a question concerning the laws of physics to
stimulate the group's curiosity.

The question is: If you hang two plumb bobs, say 50 feet apart are the
strings parallel?

OK, here is a wreck answer.

They would be parallel if it could be measured by a fifty foot rule from Lee
Valley. (Rob Lee, here is an idea for you next April 1st tool)

BTW how parallel is string anyway? Any horizontal measurement of a vertical
string would change its position.

how's about if there was no limit to the length of the string? wow
how long is a string? i'd say that half way to the middle is one fourth
the way to the other end.

SWDeveloper wrote:

On 20 Apr 2007 10:46:22 -0700, GROVER
wrote:

Since I've been enjoying the topics and discussions of this news
group, and I see that there are many posters who are quite bright, I
decided to pose a question concerning the laws of physics to
stimulate the group's curiosity.

The question is: If you hang two plumb bobs, say 50 feet apart are the
strings parallel?

No. Both will point toward the center of gravity (somewhere inside
the earth).
At high tide, anyway. g
--
Alex -- Replace "nospam" with "mail" to reply by email. Checked infrequently.

Russ wrote in news:3h7Wh.1980$np4.1820
@bignews4.bellsouth.net:

Ok then... In recent news;
***
In a recent study, mathematician George Sparling of the University of
Pittsburgh examines a fundamental question pondered since the time of
Pythagoras, and still vexing scientists today: what is the nature of
space and time? After analyzing different perspectives, Sparling offers
an alternative idea: space-time may have six dimensions, with the extra
two being time-like.
***

So if I turn a six dimensional bowl on my quantum lathe, primarily
taking advantage of the additional time-like dimensions, how long do I
have to work the finish in before it dries?

Did you soak it in LDD?

On 20 Apr 2007 10:46:22 -0700, GROVER
wrote:

Since I've been enjoying the topics and discussions of this news
group, and I see that there are many posters who are quite bright, I
decided to pose a question concerning the laws of physics to
stimulate the group's curiosity.

The question is: If you hang two plumb bobs, say 50 feet apart are the
strings parallel?

No. Both will point toward the center of gravity (somewhere inside
the earth).

"Charlie M. 1958" wrote in message
...
GROVER wrote:
On Apr 20, 1:46 pm, GROVER wrote:
Since I've been enjoying the topics and discussions of this news
group, and I see that there are many posters who are quite bright, I
decided to pose a question concerning the laws of physics to
stimulate the group's curiosity.

The question is: If you hang two plumb bobs, say 50 feet apart are the
strings parallel?

You guys are right on the money. I'll have to thinks up a harder
question if I hope to stump the group.Joe G

Hell, to hear the way some folks around here talk, you'd think their table
saws were adjusted to tighter tolerances than the differences between
those two plumb bobs. :-)

So *that's* what's causing my kickbacks??? The earth's curvature? Knew it
had to be something.

jc

In article .com,
GROVER wrote:
Since I've been enjoying the topics and discussions of this news
group, and I see that there are many posters who are quite bright, I
decided to pose a question concerning the laws of physics to
stimulate the group's curiosity.

The question is: If you hang two plumb bobs, say 50 feet apart are the
strings parallel?


Nope. I'm getting about a 1/2 second of arc between them.

"Russ" wrote in message
...


So if I turn a six dimensional bowl on my quantum lathe, primarily
taking advantage of the additional time-like dimensions, how long do I
have to work the finish in before it dries?

Since you are probably working in imaginary time, I'd say the finish was on
the piece even before your first cut. So don't worry about it.

dwhite

They would sure appear to be parallel and for all practical purposes would
be, but in truth they would be between 1 and two ten-thousanths of a degree
off.

Lee

--
To e-mail, replace "bucketofspam" with "dleegordon"

_________________________________
Lee Gordon
http://www.leegordonproductions.com

On 20 Apr, 19:09, Russ wrote:
Ok then... In recent news;
***
In a recent study, mathematician George Sparling of the University of
Pittsburgh examines a fundamental question pondered since the time of
Pythagoras, and still vexing scientists today: what is the nature of
space and time? After analyzing different perspectives, Sparling offers
an alternative idea: space-time may have six dimensions, with the extra
two being time-like.
***

So if I turn a six dimensional bowl on my quantum lathe, primarily
taking advantage of the additional time-like dimensions, how long do I
have to work the finish in before it dries?

The finish goes on FIRST, fool.

On Apr 20, 5:13 pm, "Lee Gordon" wrote:
They would sure appear to be parallel and for all practical purposes would
be, but in truth they would be between 1 and two ten-thousanths of a degree
off.

If we are going to split hairs then:

The error from the theoretical parallels would vary both with altitude
and location on the globe.
A geodesic error will cause different errors on the two strings as the
earth is not a perfect sphere.

On Apr 20, 6:53 pm, Robatoy wrote:
On Apr 20, 5:13 pm, "Lee Gordon" wrote: They would sure appear to be parallel and for all practical purposes would
be, but in truth they would be between 1 and two ten-thousanths of a degree
off.

If we are going to split hairs then:

The error from the theoretical parallels would vary both with altitude
and location on the globe.
A geodesic error will cause different errors on the two strings as the
earth is not a perfect sphere.

I am going from the standpoint that the centre of the base (at 25
feet) is at a perfect 90-degrees to the line running to the centre of
the planet. The errors to that line will be different for each bob.

Thought I'd clarify my position.

Russ wrote:

So if I turn a six dimensional bowl on my quantum lathe, primarily
taking advantage of the additional time-like dimensions, how long do I
have to work the finish in before it dries?

The answer will differ in each parallel universe.
--
It's turtles, all the way down

On Apr 20, 8:00 pm, "Swingman" wrote:
"Robatoy" wrote in message
If we are going to split hairs then:

The error from the theoretical parallels would vary both with altitude
and location on the globe.
A geodesic error will cause different errors on the two strings as the
earth is not a perfect sphere.

Not only that, but you would certainly need to do gravity meter surveys to
insure that the gravity field is equivalent at both locations prior to
embarking upon any calculations.

You can't be too careful ...

assuming you can freeze the measuments in time so not to be exposed to
planetary rotational pendulum forces which ALL plumbobs have a problem
with. The farking things just never hold still. I understand bourbon
has a stabilizing influence on planetary rotational sidewalk-in-the-
faceness.

Say what?

A glorious weekend so far.. no work in the shop for me. Angela and our
daughter are off to Birch Run MI (Between Flint & Saginaw) where there
are ONE HUNDRED A FIFTY FACTORY OUTLETS, DAD!!!
I put a little something in Angela's birthday card yesterday (the big
40) and they're OUTTA HERE!!..LOL.

*whispers* And I'm off to see if Dave Eisan has any good deals on a
General table saw....

That was easy....LOL

"GROVER" wrote in message
oups.com...
Since I've been enjoying the topics and discussions of this news
group, and I see that there are many posters who are quite bright, I
decided to pose a question concerning the laws of physics to
stimulate the group's curiosity.

The question is: If you hang two plumb bobs, say 50 feet apart are the
strings parallel?


No.

"Swingman" wrote in
:

snip
You can't be too careful ...


Yes, you can.



Patriarch

"Leon" wrote in news:4ObWh.5794$H_5.4139
@newssvr23.news.prodigy.net:


"GROVER" wrote in message
oups.com...
Since I've been enjoying the topics and discussions of this news
group, and I see that there are many posters who are quite bright, I
decided to pose a question concerning the laws of physics to
stimulate the group's curiosity.

The question is: If you hang two plumb bobs, say 50 feet apart are the
strings parallel?


No.


According to which theory?

"Patriarch" wrote in message

The question is: If you hang two plumb bobs, say 50 feet apart are the
strings parallel?


No.


According to which theory?



I forget the name of the theory but it goes something like, 2 rays
originating from 2 different points and going towards a single point are not
parallel.

"Leon" wrote in
t:


"Patriarch" wrote in message

The question is: If you hang two plumb bobs, say 50 feet apart are
the strings parallel?


No.


According to which theory?



I forget the name of the theory but it goes something like, 2 rays
originating from 2 different points and going towards a single point
are not parallel.




It was a question regarding string theory. Sorry I missed the emoticon.

I gotta go to the bank now...

Patriarch

"Robatoy" wrote in message

If we are going to split hairs then:

The error from the theoretical parallels would vary both with altitude
and location on the globe.
A geodesic error will cause different errors on the two strings as the
earth is not a perfect sphere.

Not only that, but you would certainly need to do gravity meter surveys to
insure that the gravity field is equivalent at both locations prior to
embarking upon any calculations.

You can't be too careful ...

--
www.e-woodshop.net
Last update: 2/20/07

GROVER wrote in news:1177091182.736587.218780
@n59g2000hsh.googlegroups.com:

Since I've been enjoying the topics and discussions of this news
group, and I see that there are many posters who are quite bright, I
decided to pose a question concerning the laws of physics to
stimulate the group's curiosity.

The question is: If you hang two plumb bobs, say 50 feet apart are the
strings parallel?

Actually it depends on the mass of the plumb bobs. If massive enough they
would attract each other.

But I believe that would only be quite near to a black hole.
--
Best regards
Han
email address is invalid

"Robatoy" wrote in message

A glorious weekend so far.. no work in the shop for me. Angela and our
daughter are off to Birch Run MI (Between Flint & Saginaw) where there
are ONE HUNDRED A FIFTY FACTORY OUTLETS, DAD!!!
I put a little something in Angela's birthday card yesterday (the big
40) and they're OUTTA HERE!!..LOL.

*whispers* And I'm off to see if Dave Eisan has any good deals on a
General table saw....

That was easy....LOL

Way to go ... quite reigns! Or does it?

No gig's this weekend! I'm off to sit on the porch with a glass of wine and
visit with a band mate to go over the latest roughs from the new CD project,
then walk around the corner to the park to sit on the grass and listen to a
string quartet in the gazebo ... it should be a beautiful, cool evening here
in H town.

And tomorrow night we'll see how many red 3's Leon can gather up in a game
or two of "Hand 'n Foot".

--
www.e-woodshop.net
Last update: 2/20/07

42

--
Lloyd Baker
"Russ" wrote in message
...
Ok then... In recent news;
***
In a recent study, mathematician George Sparling of the University of
Pittsburgh examines a fundamental question pondered since the time of
Pythagoras, and still vexing scientists today: what is the nature of space
and time? After analyzing different perspectives, Sparling offers an
alternative idea: space-time may have six dimensions, with the extra two
being time-like.
***

So if I turn a six dimensional bowl on my quantum lathe, primarily taking
advantage of the additional time-like dimensions, how long do I have to
work the finish in before it dries?

On Apr 20, 8:41 pm, "Swingman" wrote:


And tomorrow night we'll see how many red 3's Leon can gather up in a game
or two of "Hand 'n Foot".

4 decks of regular cards (Canasta style) or a fancy schmancy dedicated
deck?

I'm a Euchre kinda fella myself. I like the speed.
I had a small bout with bridge, but that you have to play all the
time, me thinks.

Robatoy wrote:

I'm a Euchre kinda fella myself.

How about "66"? Uses a Euchre deck.

Bridge is OK, but if you want a cut throat game, give me 3 handed
Hearts if 4 players, the military version of double deck pinochle.

Throw out the "9"s, 50 to open, 20 meld minimum, 20 tricks minimum to
save, 500 for game.

If you are after blood, $0.10/point.

Lew

If a guy says something - out loud - and there's no
woman around to hear what he said - is he still wrong?

Of the fifty or so women, ages maybe early 20s to mid
80s, all but three immediately said "Yes" and most added
"of course". The three exceptions requested more info
before anwering the question.

Surprisingly - or not - all but three of the 40 or 50 guys
I asked, ages 20s to mid 80s, also said, without hesitation,
"Yes" or "Sure". Two if the three exceptions said "I'll get
back to you on that." Still waiting for their responses.
The third guy's response was "WHAT!? He flew a
Mosquito during WWII and then worked around jet air
craft for another 30 years. Nice guy. Deaf as a post.

Now about those space ships approaching each other
at the speed of light and both turn on their headlights
- could either pilot/dirver see the on coming vehicle's
lights?

There is no such thing as "matter". It's ALL different
manifestations of energy. The Everything Is Everything
gurus from the 60s were right.

Ommmmmmmmmmmmmmmmmm.

charlie b

"GROVER" wrote in message
oups.com...
Since I've been enjoying the topics and discussions of this news
group, and I see that there are many posters who are quite bright, I
decided to pose a question concerning the laws of physics to
stimulate the group's curiosity.

The question is: If you hang two plumb bobs, say 50 feet apart are the
strings parallel?

No way to answer this question without knowing your definition of
"parallel".

It is also somewhat site specific. There could easily be gravitational
and/or magnetic anomalies that will affect their positions much more than
the curvature of the earth.

So, the answer might be "pretty much".

"Toller" wrote in message
...

No way to answer this question without knowing your definition of
"parallel".

Parallel has only one definition. It's not open to interpretation. You're a
Bill Clinton fan, aren't you?

Lew Hodgett wrote:

Bridge is OK, but if you want a cut throat game, give me 3 handed
Hearts if 4 players, the military version of double deck pinochle.

Throw out the "9"s, 50 to open, 20 meld minimum, 20 tricks minimum to
save, 500 for game.

If you are after blood, $0.10/point.

Forgot to add, $5/set, now that gets your attention.

Lew

"Robatoy" wrote in message
On Apr 20, 8:41 pm, "Swingman" wrote:


And tomorrow night we'll see how many red 3's Leon can gather up in a
game
or two of "Hand 'n Foot".

4 decks of regular cards (Canasta style) or a fancy schmancy dedicated
deck?

5 decks, regular style ... one more than the number of players. Automatic,
battery operated shuffler mandatory.

I'm a Euchre kinda fella myself. I like the speed.
I had a small bout with bridge, but that you have to play all the
time, me thinks.

Bouree' for me ... or, as Lew said, double deck pinochle, like it's played
in the military.

--
www.e-woodshop.net
Last update: 2/20/07

"CW" wrote in message
news

"Toller" wrote in message
...

No way to answer this question without knowing your definition of
"parallel".

Parallel has only one definition. It's not open to interpretation. You're
a
Bill Clinton fan, aren't you?

You are not really into geometry, are you?
http://en.wikipedia.org/wiki/Non-euclidian_geometry

Oh, you are making a pun on Clinton sounding like Euclid!