 Imagine for a second that the tunnels you just saw are actually fiber optic cables, and the blinking lights are beams of light transporting data at over 300 kilometers per second. Light travels faster than anything else in the universe, which makes it perfect for the communications industry, that and the fact that it can transport information wirelessly. So what exactly is light? Light is composed of tiny, tiny particles called photons. These photons travel through space as oscillating electric and magnetic waves. The speed of the oscillation is what determines what color light you see. However, most light oscillates too quickly to be detected by human eyes, which is why we're not constantly blinded by radio signals. I love science because it reveals the hidden mechanisms behind everyday things, such as light. It's like a treasure hunt for the secrets of the universe, and every discovery can lead to amazing technological advancements. Seriously, imagine not having phones or...