On Thu, 22 Mar 2018 00:45:04 -0700, Rednadnerb wrote:

On Monday, March 19, 2018 at 1:48:49 PM UTC, The Natural Philosopher
wrote:
On 19/03/18 11:11, 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?

The tracks supprting the radio telecopes at Madingley - at two miles
long - were 'up' by IIRC 4 " at each end..

So not very big..





--
Climate Change: Socialism wearing a lab coat.

and I seem to remember that the distance between the two towers of the
Humber bridge is greater at the top than at the bottom, by about 1" I
think.

According to Tim+, almost 50% more than that (36mm in fact).

--
Johnny B Good