Researchers have developed tiny 'Janus balls' that show their colored side under a magnetic field. These microparticles could be useful in inks for anti-counterfeiting tags, which could be verified with an ordinary magnet.
A laser compressing an aluminum crystal provides a clearer view of a material's plastic deformation, potentially leading to the design of stronger nuclear fusion materials and spacecraft shields.
The work is a significant step toward realizing a new generation of ultra-compact, low-energy-use computers capable of complex mathematical computation.
