I'll give you something to think about.
Look around the room you're in, what you're seeing isn't matter, you can't actually see matter. What you're seeing is the light reflecting off that matter, which enters your eyes and your brain then interprets as matter, as objects. So you're not really seeing the objects themselves, but the light reflecting off of them.
Almost all of the information you have about your room is carried by tiny quantum objects that make up that light called photons. And that information, as you might imagine, is traveling at the speed of light.
If light didn't exist, you wouldn't be able to gather any visual information about the universe. The entire universe would be completely dark to you. But it would be much worse than that, because you wouldn't exist without light either. In fact, no life as we know it would exist.
Light plays a crucial role in the existence of the universe let's take a closer look at what that means.
What is the purpose of light, how does it work, and why does it exist?
Негізгі бет Ғылым және технология What is Light and Why Does it Exist?
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