That phone - yes, the one in your hand, or perhaps your pocket - works by radio waves.
Yes, I'm back with more ramblings about all the ways humans use the electromagnetic spectrum! Because turns out, you're rather reliant on it.
Phones - mobile phones, anyway - use radio waves to connect to each other (it's more complicated than direct phone-to-phone communication but the radio waves are the important part today!). Your wifi is also radio waves. GPS is also radio waves. I probably don't even need to look it up to tell you a radio is radio waves, but I did and they do.
So, humans communicate with each other and locate themselves by waving, in a way. I like that.
If I get stuff wrong, please correct me politely - I don't know very much yet, but I love hearing cool facts! Thank you -Gentle









