It’s already dark and cold in the wintertime, especially in Scandinavia. But winter in Rjukan, a small town in Norway, is about as bleak as it gets. The 3,500 residents of Rjukan live in a valley surrounded by mountains that completely block out any hope of sunlight for five months during the winter, from September to March.
Now engineers are using sun-tracking mirrors to defy nature and shed some winter sunlight on the town for the first time.
The town just finished installing three huge mirrors on the mountainside that will reflect sunlight down into the town square. Helicopters installed the 300-square-foot mirrors, completing the project deemed The Mirror Project. Assuming everything goes according to plan, the first artificial sun will be reflected when winter rolls around in a couple month.
For the res of the story: http://motherboard.vice.com/blog/huge-heliostatic-mirrors-are-rigging-artificial-sunlight-in-norway