Fly underground / public lighting

Waiting is stressful. Do you think so?
Especially the time people wait for the train is too short but boring.
So I want to give a ‘pleasure’ to many people wait for train.
This product is hanging from the ceiling in underground railway.
There is a bird patterned surface and a propeller in the bottom of the product.
When the train comes into the platform, there is a strong wind blowing.
That wind spin a propeller, then the wind power will make a electric power.
‘Fly underground’ light up and you can see the flying bird shadows.