Quasiparticles with linear dispersion in condensed matter 1 systems have sparked considerable excitement since their discovery in graphene 2, topological insulators 3, Dirac semimetals such as Na 3 Bi ...

Twisted light: self-torque could be used to manipulate molecules. (Courtesy: iStock/VikaSuh) Physicists in Spain and the US have shown that the orbital angular momentum, or twistedness, of light can ...

Everyone loves perpetual motion machines. They are a representation of the highest level of creativity in finding loopholes in the laws of physics. Let's take a look at this one. What is a perpetual ...