and oil also releases carbon dioxide
into Earth’s atmosphere. This process is
harmful to the planet. Scientists hope
solar power can replace other energy
sources.
INSPIRED BY TREES
Windmills turn energy from wind into another
form of energy. Scientists have worked to improve
windmills by studying trees. They found that
branches help trees catch wind. This gave scientists
an idea. Most windmills have one large
generator
.
But the scientists created a windmill that has
many generators. This new windmill has branches,
similar to a tree. At the end of each branch is a
small generator. Scientists set up the first “tree”
windmills in Paris, France, in
.
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