Six maps that show the anatomy of America’s vast infrastructure
(via Six maps that show the anatomy of America’s vast infrastructure - Washington Post)
11th December 2016
Notes: 50
When it comes to dating apps, Tinder rules the English-speaking world. In fact, of the 41 countries assessed in the Statista Digital Market Outlook (DMO), the app is the most downloaded in 16, putting it level with London-based Badoo for the number of countries in which it is market leader.
(via https://www.statista.com/chart/6783/the-dating-app-worldmap/)
Local co-ordinates, used to produce maps and measurements, and global ones differ by more than 1m.
The body responsible for the change said it would help the development of self-driving cars, which need accurate location data to navigate.
Australia moves about 7cm north annually because of tectonic movements.
Modern satellite systems provide location data based on global lines of longitude and latitude, which do not move even if the continents on Earth shift.
The Geocentric Datum of Australia, the country’s local co-ordinate system, was last updated in 1994. Since then, Australia has moved about 1.5 metres north.
So on 1 January 2017, the country’s local co-ordinates will also be shifted further north - by 1.8m.
The over-correction means Australia’s local co-ordinates and the Earth’s global co-ordinates will align in 2020.
California defined only by its road infrastructure
Reblogged From photorator
Maps of rivers, part of a vector tile project at github.com/NelsonMinar/vector-river-map.
