## 12.05.2014

Science in GIFs: Measuring the meanderiness of a river

The meanderiness of a river, its Stølum number, is defined as the length the water travels from source to finish (blue curve) divided by the direct distance (red line).  This can change chaotically as a river changes coarse, forming Ox bow lakes. The ratio is often found to converge to (but rarely exceed) 3.14, roughly pi. Via

## 5.14.2014

Science in GIFs: How a color image is built up through a series of printing plates (taken from a 19th century manual on colour printing

## 4.04.2014

Science in GIFs: Timelapse of river changing course over 28 years