OKAY INFODUMP: do u know the doppler effect? basically, the reason ice cream trucks sound so creepy when they drive away from you can be described through the doppler effect. if the source of something creating sound waves is moving relative to you, the wave frequency changes! it's going to go to a higher frequency as it's coming towards you and a lower frequency as it's going away from you. a train whistle sounds like its pitch is rising as it comes towards you & falling as it goes away (1/?
JANE JANE JANE THAT'S ONE OF MY FAVORITE FACTS EVER I LOVE THAT SO MUCH
infodump in my askbox!
















