[Sara]
somebody once said to me that if someone does not undestand you, you have
not explained well enough!
[Tony M.]
Or to take it a little further The pupil should exceed the master or
the master has failed
Now who said that?
Don't know, but here is another (I think it's an old Chinese
Tim Yu contributed:
Don't know, but here is another (I think it's an old Chinese saying):
When the student is ready, a teacher will appear.
and for why? Have you ever tried stopping one from telling you
something?
As the little girl said This book told me more than I wanted to know
Fernando
The rope is longer than the distance between the pegs x and y.
(I hope the characters / and \ work as forward and backward oblique on your
screen and you will need to look at this in a fixed width font I expect.)
Pick a point * which I shall draw nearer the end x and move so that
Sorry, but I have not been able to visualize this.
No matter how I look into it, I can't seen how it will
generate a perpendicular line. I see the pegs and cable
as follows:
+
W o=o E
+
Where do I pull the rope taut? I'd
Fritz Stumpges wrote:
Hi
Don't pull the rope too tight, leave a little slack. Now grab
the rope
anywhere near the middle and pull it snuggly to one side and mark the
spot.
Then holding the rope at the same spot move to the other side and repeat.
I
love the simple ideas people on this list come
Rudolph:
What a great idea! No math or plotting! This method also seems like it
would be very precise (If there is no stretch in the rope. A chain or cable
metal cable might be better than a rope for super precision).
John
Yes, yes yes! Laying out lines is really fun and healthy.
To derive
Sarah contributed:
somebody once said to me that if someone does not undestand you, you have
not explained well enough!
Or to take it a little further The pupil should exceed the master or
the master has failed
Now who said that?
Tony M.
Fernando,
Here is a small GIF to illustrate the concept. It
is a nice example of symmetry. The thick lines
represents the rope, and the little squares show
where it is gripped and marked.
Bill
Attachment converted: Macintosh HD:R-ANG.GIF (GIFf/JVWR) (0001BF30)
Yes, yes yes! Laying out lines is really fun and healthy.
To derive the meridian from the east-west line, you don't even have to use a
Pythagorean triangle.
If you peg two points on the E-W line (not too close together) and connect
them with a long rope, you can pull the rope taut first on one
G'day Maria,
A 'classic' thing to do on an equinox, is to mark, (pegs in earth --
chalk, sticky tape, etc., on the patio paving, -- or as your imagination
suggests) the location of some well defined fixed object's shadow
on any horizontal surface every-so-often for a goodly span of the
day's
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