In simple terms, gamma rays are like super-powered X-rays that are used in all sorts of cool applications, from medical treatments to scientific research. They're a type of electromagnetic radiation, which means they're made up of energy waves that can travel through space. But what's really cool is that they have no mass or charge, which makes them pretty unique.
Now, when it comes to the size of gamma rays, things get really tiny. We're talking smaller than small – like, nanoscale small. To put it into perspective, the wavelength of a gamma ray is around 0.01 nanometers, which is about 1/100,000th the size of a human hair. That's incredibly small!
