How does the internet send a message around the world?
Light That Talks
How does the internet send a message around the world?
You tap "send" on a message to your friend across the ocean. One second later, it appears on their screen. But your phone didn't throw anything. Your words didn't fly through the air like a paper airplane. So what just happened?
Your message becomes a string of tiny electrical pulses — millions of microscopic on-off blinks, like a flashlight blinking in code. Every letter, every emoji, gets translated into this blink-language called binary. Your phone speaks in light.
