Choi Soo-seok (최수석), a professor in the Department of Electrical Engineering at Pohang University of Science and Technology, has been selected as the September winner of South Korea’s Science and Technology Award, the Ministry of Science and ICT and the National Research Foundation of Korea said on Tuesday. He was recognised for developing “real full colour” technology using chiral nanostructures to directly generate and control colours and wavelengths across the visible spectrum.

U.S. President Donald Trump said he is considering expanding holdings of bitcoin and other cryptocurrencies, but analysts say launching a multi-billion-dollar open-market purchase program would require explicit authorisation from Congress. Existing law leaves limited routes for the executive branch, mainly through seized assets, donations and tax payments. Large-scale purchases or funding them by selling other digital assets could conflict with federal fiscal rules without new legislation.