These striking designs for American currency offered a bold new look at the nation’s money—featuring modern layouts, fresh figures, and powerful symbolism. Though they never made it to your wallet, ...

To commemorate the 35th Birth Anniversary of Her Majesty the Gyaltsuen, Bhutan National Bank (BNB) launched its newly ...

† Barrer Centre, Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K. ‡ Department of Materials, Imperial College London, South Kensington Campus, ...