{"product_id":"the-power-of-light-how-electromagnetic-radiation-makes-communication-possible-von-herlie","title":"The Power of Light: How Electromagnetic Radiation Makes Communication Possible","description":"Light itself doesn't carry information. It's the way we manipulate this light that allows us to communicate. Communication technologies encode information onto the light wave. There are two main methods:\nAmplitude Modulation (AM): This method varies the intensity (amplitude) of the light wave to represent information. Imagine a flickering light bulb - a bright flash could represent a 1, while a dim flicker could represent a 0. This method is used in some older radio transmissions.\nFrequency Modulation (FM): Here, the frequency (number of cycles per second) of the light wave is varied to represent information. Think of a police siren - a high-pitched whine could represent a 1, while a lower-pitched wail could represent a 0. FM is more resistant to interference and is used in many modern radio transmissions.\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783384283177\"\u003e\u003ch3\u003e\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783384283177","offer_id":49723221082437,"sku":"9783384283177","price":27.79,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/0bb1715f-346a-451a-8429-aad9ead1bc75.jpg?v=1776492891","url":"https:\/\/shop.autorenwelt.de\/products\/the-power-of-light-how-electromagnetic-radiation-makes-communication-possible-von-herlie","provider":"Autorenwelt Shop","version":"1.0","type":"link"}