How do radio and Wi-Fi signals actually work?

Question

I don’t think I was ever taught this but thinking about it it seems like suck a futuristic concept and I wanna know how they both work. Like, how do these things send invisible, intangible signals?

In: 65

Answer 1

Radio and Wi-Fi signals work by transmitting information through electromagnetic waves. These waves are generated by alternating the electric and magnetic fields of the signal, which then travels through the air or other mediums, such as cables. The receiving device, such as a radio or Wi-Fi router, then decodes the electromagnetic waves back into usable information.