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Old 07-28-2013, 05:20 PM   #1
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Women and Engineers

Two engineers were standing at the base of a flagpole, looking at its top. A woman walked by and asked what they were doing.

"We're supposed to find the height of this flagpole," said Steven, "but we don't have a ladder."

The woman took a Multi-Tool from her purse, loosened a couple of bolts, and lowered the pole to the ground. Then she took a tape measure from her purse, took a measurement, announced, "Twenty-one feet, six inches," and walked away.

One engineer shook his head and laughed, "A lot of good that does us. We ask for the height and she gives us the length!"

Both engineers have since quit their engineering jobs and entered politics.
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Old 07-28-2013, 05:40 PM   #2
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<<<<<<<<<<<<<<<< coincidentally carries a mini multitool in her purse.

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Old 07-29-2013, 06:57 AM   #3
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This is a lot easier, ,it needs to be a sunny day though.
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Old 07-29-2013, 07:05 AM   #4
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Quote:
Originally Posted by lswartz View Post
This is a lot easier, ,it needs to be a sunny day though.
Tough to measure "c" and of course "a" is unknown.

Measure off 100 feet from the tree, and using a protractor and a string plumb bob, you can determine the elevation angle (Theta) of the tree top.

Tan (Theta) x 100 feet will give you the height of the tree in feet.
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Old 07-29-2013, 10:46 AM   #5
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Measure your shadow. (That step may need help.)
Divide the shadow length by your height. Then divide the pole shadow by the result.

Ex: I am 6 ft tall. If the shadow is 9 feet, divided by 6 is 1.5.
If the pole shadow it 30, divide by 1.5 = 20 foot pole.
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Old 07-29-2013, 11:03 AM   #6
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I have always carried a small tape measure and a big swiss knife. Once at a party for a girl I work with she couldn't open a gift, wait I have a knife I said and then all down the table I could hear Pams got a knife, why does she have a knife, shes got a knife? It was hilarious but like I said, see we needed one!
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Old 07-29-2013, 11:32 AM   #7
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Note to self: Pam's got a knife. Be careful what you say to her in the forums.
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Old 07-29-2013, 01:10 PM   #8
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Quote:
Originally Posted by Arefbee View Post
Measure your shadow. (That step may need help.)
Divide the shadow length by your height. Then divide the pole shadow by the result.

Ex: I am 6 ft tall. If the shadow is 9 feet, divided by 6 is 1.5.
If the pole shadow it 30, divide by 1.5 = 20 foot pole.
Very good. It is similar to a GED math question. It is also handy to determine a tree's height so you don't hit your house too.
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Old 07-29-2013, 01:46 PM   #9
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Quote:
Originally Posted by Arefbee View Post
Measure your shadow. (That step may need help.)
Divide the shadow length by your height. Then divide the pole shadow by the result.

Ex: I am 6 ft tall. If the shadow is 9 feet, divided by 6 is 1.5.
If the pole shadow it 30, divide by 1.5 = 20 foot pole.
Much better than the plumb bob/protractor method and you don't have to correct for your height (subtract from height of tree).
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