Light that twists as it travels and materials whose internal order is knotted like a pretzel are starting to collide in the ...
It is commonly believed that geometry began as a practical subject, and came into being as a result of everyday concerns. The earliest practitioners of geometry developed a set of rules to calculate ...
Pollard Institute, School of Electronic and Electrical Engineering, University of Leeds, Leeds LS2 9JT, U.K. Bragg Centre for Materials Research University of Leeds, Leeds LS2 9JT, U.K. Article Views ...