doppler_effect
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| + | The Doppler Effect is a phenomenon that appears when something that emits some kind of wave moves in relation to the observer. If the emitter and receiver move away from each other or get closer to each other, the frequency at which the receive receives the waves will be distorted. If the two move away from each other, more distance is created between each emitted wave, which will appear to the receiver as if the frequency has been reduced. If the two move towards each other, the waves will be compressed as there is less distance between each, appearing to the receiver as if the frequency is higher. This concept has important applications for long-distance communication, | ||
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| + | ====== Explanation ====== | ||
| Imagine a rectangular swimming pool. If hit the water close to your end of the pool, you create a water of water that will expand from your end of the swimming pool towards the other end of the swimming pool. Now imagine you follow that wave and hit the water again just behind the wave. You now have two waves following right behind each other moving towards the other end of the pool. | Imagine a rectangular swimming pool. If hit the water close to your end of the pool, you create a water of water that will expand from your end of the swimming pool towards the other end of the swimming pool. Now imagine you follow that wave and hit the water again just behind the wave. You now have two waves following right behind each other moving towards the other end of the pool. | ||
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| Most things in our world have movement relative to us, even if only on a molecular level, so the doppler effect is around us all the time. It's just that in most cases the relative movement is so negigible that we don't consciously pick it up (or our ears aren't precise enough). But, doppler is good and useful! It is useful for spacefaring radio signals from spacecraft don't just transmit their radio signal but can also be analysed to give us useful information about their movement relative from us. NASA uses the doppler effect to cross-reference the speed data of their spacecraft. | Most things in our world have movement relative to us, even if only on a molecular level, so the doppler effect is around us all the time. It's just that in most cases the relative movement is so negigible that we don't consciously pick it up (or our ears aren't precise enough). But, doppler is good and useful! It is useful for spacefaring radio signals from spacecraft don't just transmit their radio signal but can also be analysed to give us useful information about their movement relative from us. NASA uses the doppler effect to cross-reference the speed data of their spacecraft. | ||
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| + | And there is so much more! Have you heard of relativistic doppler? Grand worlds will be opened up to you with the amazing data gathering of other planets and stars you can do by applying physical principles that go beyond the elementary conceptual understanding I can provide here. Hell, I didn't even give you the math, that's how little I actually know. Time will tell if I am ever gonna learn more about this. | ||
doppler_effect.1770633241.txt.gz · Last modified: by ultracomfy