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Table of Contents
It's not religion if it's true
Science
Objective inquiry
History
Philosophy
Inclusion
Doppler Effect
Falsified Hypotheses
Phyics/
Doppler Effect
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.
Now imagine you're a different person sitting on the other end of the pool. You don't see the person hitting the water, but you can see the waves reaching your end of the pool. What do you see? Well, you see a lot of waves arriving in quick succession - that's the doppler effect. Even though the water hitter might have created each wave with a generous time interval between each wave, they will still arrive “all at once” at the other person because they chased the location of the last wave.
If a water hitter creates a wave every one second and does not move, those waves will reach you in an interval of one wave every one second. However, if the water hitter does the same while moving towards you, the waves will be closer to each other than one second, even if they still only punch the water every second.
Sound Physics
What our ears pick up are vibrations of ear air molecules.