Biological condensates are small, membraneless organelles typically consisting of multiple proteins and nucleic acids within ...

However, actually making practical metamaterials has proven to be very difficult. In principle, it should be much easier to achieve negative refraction with electron waves in a semiconductor. For ...

We present experimental scattering data at microwave frequencies on a structured metamaterial that exhibits a frequency band where the effective index of refraction (n) is negative. The material ...

There are different ways to investigate refraction in rectangular blocks. In this required practical activity, it is important to: make, measure and record the angles of incidence accurately using ...