Most of us know all about DNA, the genetic building blocks that make us unique. But in recent years, there’s a lot of interest in RNA— a molecule that controls how our genes are expressed.
During the darkest days of the year artificial lighting is more important than ever.
As the government works to phase out the inefficient incandescent bulb, the energy-saving LED (light-emitting diode) has started to take on a more prominent role in lighting systems.