funkraum wrote:


#In January 1927 a service was opened between Cairo and Basra,
#in the Persian Gulf. To solve the difficulty of navigating
#across the trackless desert between Palestine and Baghdad,
#a furrow, several hundred miles long, was ploughed in the
#sand. It was probably the longest furrow ever ploughed.
#

Anyone know if this is still there ?

Presumably it was filled-in as advances in furrow-less navigation took
place, due to the number of explorers spraining their ankles by
stepping into it while staring intently at the burning horizon, etc.

Lesson 1 in geology - the landscape changes all the time!

The problem would be in maintaining the furrow, wind and water would fill it
in in a short period of time and it would not be detectable with the MK1
eyeball from the air within a period of months? years?.

It may be detectable now by eye from the ground close up if you knew exactly
where to look and looked at the right angle. From the air hi res multi
spectral imagery would probably show it for many years to come. This of
course is for areas of soil with some (not much but some) vegation which is
true for most desert areas.

In the rare areas of a sand sea (rather than discrete moving dunes on soil)
it would completely disappear with the first high wind.

regards

jc