![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiV_3rCGHUKteklGBnKF7kJwV4HZbNbb9BCjz4yxP3k2c9SiNHogrz2ZBSYtRlcuawJ3kxj4ic_Z5keG-7SaP4_CxIoJ9aXHtQXOIlsGCRuUjxeW9RiM328D4aQ0zxm9XKN6KxV3m5kTanH/s200/WorldAir.bmp)
- Particles at this scale naturally clump together highlighting the major areas of air travel.
- Integration with a world daylight representation provides a suitably visually orthogonal set of representations for easy spatial comparison of time of day and air travel intensity.
- Air travel is seen as an aggregated daily process across the world.
- Aesthetically it is pleasing - ugly visualisations are beyond contempt.
- It also brings home - if air travel is postively correlated with economic activity - why the US still strongly influences the world economy.
Ross
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