The new transparent solar cells are made from tiny organic molecules that absorb invisible wavelengths of sunlight such as ultraviolet and near infrared light. This invisble light is then guided to the edge of the solar panel, where thin strips of photovoltaic solar cells pick it up and convert it into energy. "Because the materials do not absorb or emit light in the visible spectrum, they look exceptionally transparent to the human eye," Lunt said.
Yu is a loggerhead turtle that lost her front fins to a shark attack. She is seen earlier this year wearing the latest in artificial flipper technology in Japan. The rubber limbs are attached to a soft vest that simply goes on over her head. "We have worked hard to design the vest in a way that prevents the turtle from taking it off unwittingly," said the aquarium's curator Naoki Kamezaki.