Another positive, peaceful contribution being made to the Vestas sit-in is by a collective called Bicycology.
They’ve brought a tandem, a connected dynamo, battery and sound system to it.
To provide music and a PA for people addressing the crowd of supporters, they hop on the tandem and peddle slowly and steadily, charging the battery.
No damage to the environment, just freely-provided pleasure.
Video after the jump
![Bicycology poster](http://otwstatgraf.s3.amazonaws.com/bicycology-poster.jpg)