G'morning Wayne, 

 ->  MR> I know 50 ways to measure a tall building with a barometer.
 -> Care to share some of them ?
 WC> Drop it and time the time it takes to impact.
 WC> Measure the height of the barometer, strike an angle to the roof
 WC> at a distance and apply trig.

Thanks for those - and consider my reply to Paul ...  any other 
solutions outside those mentioned there ?

:-)
 
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