A new type of cloth developed by researchers at the University of Waterloo can heat up when exposed to the sun thanks to innovative nanoparticles embedded in the fabric’s fibers. This advance represents an innovative and environmentally friendly option for staying warm in the winter. A new type of cloth developed by researchers at the University of Waterloo can heat up when exposed to the sun thanks to innovative nanoparticles embedded in the fabric’s fibers. This advance represents an innovative and environmentally friendly option for staying warm in the winter. Nanomaterials Phys.org – latest science and technology news stories