Invisibility cloaking based on transformation optics has brought about unlimited space for reverie.However, the design and fabrication of transformation-optics-based cloaks still remain fairly challenging because of the complicated, even extreme, material prescriptions, including its meticulously engineered anisotropy, inhomogeneity and singularity

WN editor Geoffrey Cannon writes: My hero in this issue is John Maynard Keynes, who a century ago gave clues to just how ominous world prospects are now.Then I ruminate on the overuse and abuse of the word 'we', as in 'Yes, we can', or 'We need to tackle the challenge of epidemic obesity'.Who are 'we'? rosaliac ar in

This paper presents a design optimization framework based on Branch and Bound Algorithm for novel networked electromagnetic soft actuators.The soft actuators work based on the operating principle of solenoids but are made of intrinsically soft materials.We confirmed that by scaling down the size of the soft actuators, olea europaea montra their for