Birch trees have been used to decorate a church for Pentecost in a tradition dating back 200 years. The trees from Longleat Forest, on the Longleat estate in Wiltshire, owned by Ceawlin Thynn, the 8th ...

In light winds, the trees swayed at around 2 to 2.3 cycles per second, with their branches absorbing much of the wind energy, protecting the trunks and roots from wind stress.

Now, micro wind turbines designed to look like trees are addressing some of the challenges of green energy. “As it is biomorphic, people cannot see at the first look that it is a renewable ...