Fuel-free magnetically driven propulsion of flexible Au/Ag/Ni nanowires, with a gold ‘head’ and nickel ‘tail’, linked by a partially dissolved and weakened silver bridge, is described. The flexible ...

An Integrated, Prosperous and Peaceful Africa, driven by its own citizens and representing a dynamic force in the global arena. African Union Headquarters P.O. Box 3243, Roosvelt Street W21K19 Addis ...