Some of you might find this interesting.
You reckon you have telephone blackspots now ;D
http://www.archivessearch.qld.gov.au/Image/DigitalImageDetails.aspx?ImageId=2925 (http://www.archivessearch.qld.gov.au/Image/DigitalImageDetails.aspx?ImageId=2925)
Well at least you could call Moreton Island in 1866.... ;D
We take so much for granted now :)
I was reading the other day about 1500 giant concrete arrows strewn across America to guide mail planes pre radio/radar/IFR/GPS. They were spaced every 3-5 miles apart, painted bright yellow, measured 50-70 feet across. They also had rotating beacons mounted on 50 foot pylons. Pilots would basically follow the arrows to their destination
http://sometimes-interesting.com/2013/12/04/concrete-arrows-and-the-u-s-airmail-beacon-system/ (http://sometimes-interesting.com/2013/12/04/concrete-arrows-and-the-u-s-airmail-beacon-system/)
Quote from: tk421 on May 04, 2015, 11:37:46 AM
We take so much for granted now :)
I was reading the other day about 1500 giant concrete arrows strewn across America to guide mail planes pre radio/radar/IFR/GPS. They were spaced every 3-5 miles apart, painted bright yellow, measured 50-70 feet across. They also had rotating beacons mounted on 50 foot pylons. Pilots would basically follow the arrows to their destination
http://sometimes-interesting.com/2013/12/04/concrete-arrows-and-the-u-s-airmail-beacon-system/ (http://sometimes-interesting.com/2013/12/04/concrete-arrows-and-the-u-s-airmail-beacon-system/)
Gees someone with an active imagination and some leftover concrete could cause havoc there. Hey that looks like Mexico......