Bigert and Bergström a contemporary artist's duo
The sculpture Sunshell is a shell of a mud snail that is enlarged to a thousand times its natural size and is vital to the ecological balance
At the top is a heliostat – a mirror that follows the path of the sun thanks to computerized motors, reflecting the sun’s rays to the inner core of the shell.

The device took around 3 months to complete, from design to construction. The solar tracker will eventually be mounted with a mirror. This is one piece of the final installation which will direct sunlight at the center point in the Sunshell throughout the day. 

Collaboration with Svart
http://www.kollektivetsvart.se/

The Artists
https://bigertbergstrom.com/works/sunshell