charles wrote:
In article , Max Demian
wrote:
On 19/03/2018 10:26, Brian Gaff wrote:
Well the earth is curved after all, so in reality nothing is flat or
level is it?

I wonder how big a thing (building? bridge?) has to be before designers
have to take into account the curvature of the earth?

It's certainly taken into account when predicting uhf tv coverage.


Humber bridge towers apparently diverge by 36mm due to curvature.

I wonder what the *smallest* man made object is that has to take account of
the earths curvature?

Tim

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Please don't feed the trolls