[TowerTalk] Re: Finding the height of trees

George T. Daughters gdaught6@leland.Stanford.EDU
Wed, 21 Apr 1999 08:54:24 +0008



Dan wrote...

> Hire a crane, back up to the tree and lower a rope to the ground, when
> the rope touches the ground mark the rope, drop it send the crane on its
> way and measure the length of rope to the mark.
> Hank
> 2nd choice hire a helicopter do the same. Must consider the downwash of
> the rotors though causing the top to waver back and forth.

This reminds me of the physics exam problem "Using a barometer, 
determine the height of a tall building."

One good answer was "Using the barometer as a weight, lower it on 
a tape measure from the roof down to the ground.  Read the height 
directly."

My favorite was "Go to the building superintendant and say 'Sir, I 
will give you this fine barometer if you will tell me the height of 
your building.'"

Oh, there was going to be a tower on the building.  (T-word!)  
Sorry... I need a contest.

73,

George T. Daughters, K6GT

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