The lighter creates a small spark that jumps from one wire in the front pair to the other. This spark creates electromagnetic waves, and two wires act as a transmission antenna for amplifying the waves. The two wires on the back are receiver antennas, which produce current in the same way as the Hertz wire loop. Instead of creating a spark on the receiver, the bulb turns on on my device. Neon bulbs are really good because they have high voltage but low current. This is exactly what you need.
OK, light out! When you fire that spark, it’s how it looks.
It may seem trivial, but it’s not. You’re actually sending both and Receives electromagnetic waves.
Science, what is it good for?
When Hertz showed an experimental validation of Maxwell’s equation, the scientific community knew it was cool, and the general public became more curious. Naturally, the journalist was actually a pragmatist and asked him what it could use. His reply:
“It’s absolutely useless… This is just an experiment to prove that Maestro Maxwell was right. They just have these mystical electromagnetic waves that you can’t see with the naked eye. But they’re there.”
Why waste money on experiments when they’re useless? Well, the honest truth is, that’s not why we do science. Humanity makes us explorers. We ask questions and ask for answers. It’s just one of the things that make up who we are. Sometimes the answer is wrong (I know what the sun does) do not have (Between the sky in tanks drawn by white horses), but we are always looking for something better.
And sometimes science is useful by chance. In fact, you may be using the results of Hertz experiments now. He not only showed that Maxwell’s equations were legal, but also effectively invented the first radio transmitter. (Radio waves are just a small portion of the electromagnetic spectrum.) This was used for wireless telegraphs that allow people to communicate by boat at sea using Morse Codes. After that, people found ways to send music, soap operas and commercials via radio waves. This, known as a television, also allowed us to spread moving photos into space.
But that doesn’t stop there! The device transmits electromagnetic waves that reflect the object, allowing you to measure how long it takes for the signal to return. And of course, mobile phone transmission, Wi-Fi, and Bluetooth are all electromagnetic waves. It’s literally everywhere – you’re swimming in the sea of electromagnetic waves.
So, if the US is spending money on science, will it boost profits and economic growth? Sometimes yes, sometimes no. There are many cool discoveries without real applications. In other words, look at the gravitational waves detected from the colliding black holes. Does it lead to a new type of internet or something? Probably not. But we are definitely rich in knowing about it.
