Scientists have created flags that can generate electricity using wind and solar energy. They've been developed using flexible piezoelectric strips and flexible photovoltaic cells.
Piezoelectric strips allow the flag to generate power through movement, whilst the photovoltaics is the best-known method of harnessing electric power by using solar cells. The newly developed energy harvesting flags are capable of powering remote sensors and small-scale portable electronics which can be used for environmental sensing such as to monitor pollution, sound levels and heat for example.
Image Credit: Dr. Mostafa Nabawy, The University of Manchester