Doppler Effect

[noseamamonputo]

Why does everyone explain this using the dumbest methods

[poemsamientos]

Picture of a train,50 cents; Alarm sounds effects 1 dollar, Hiring Grady for a cookie.., Priceless... =oD

[cribbo188]

only one dog was drowned during the making of this video

[omgpuppies0707]

i thought you actually had a video of a train but its just a picture! pff, gay as aids

[codenamecordon]

also happens with engine sounds, when you spectate a racing event, for example

[SmileFIN]

why not an ambulance or fire truck or a crazy person screaming while running past you, why always a police car :( i dont like them

[sportcrystalfish]

good video...