How Does Wi-Fi Work?

It’s funny, for something I use every single day, I have not the slightest idea how Wi-Fi works. How can the internet pass through the air to get to my computer? Although this sounds impossible, it’s not, mainly thanks to radio waves. Wi-fi uses radio waves to transmit data, as opposed to Ethernet, which uses wires. An interesting point this Life Noggin video about wi-fi makes is since the radio waves travel through air, other waves can interfere with it. For example, microwaves can interfere with wi-fi, so to avoid this problem, wi-fi signals are transmitted at a different frequency (either 2.4 or 5.0 GHz). It’s so cool how images and other files are shared through wi-fi. So, when you want to send an image, the image is broken down and directed through different routers until it reaches your computer. This demonstration reminded me of the scene in Charlie and the Chocolate Factory when the kids get transmitted and broken up into smaller bits, only to get re-assembled somewhere else. This now makes me wonder, does Bluetooth use wi-fi? In a way, yes, since Bluetooth also uses radio waves. I feel like more of an expert about something that I never stopped to wonder how it works.



Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s