Everyday, I pass this wall of crappers. In the morning, I usually smell nothing. On the ride home, I catch a whiff of poo that nearly knocks me off the bike. What is unusual to me is the point at which I smell the poo. I'd expect to detect the smell just before passing the crappers, and holding that smell until just a few feet after passing them. Instead, I detect the smell about 50ft after I pass the wall of crap. I've been trying to understand this phenomenon, and have came up with a couple of explanations. The simplest explanation is that the winds are blowing the stench, but this seems to happen on days that are not windy. So, it's not that simple. This got me to thinking that there may be a sort of "smell Doppler" effect that can explain the existence of an odor vector. See the diagram below.
If there is indeed a smell Doppler effect, the odor vector would vary based upon my speed. I may need to test this on future rides. By detecting the variations due to speed, I may be able to calculate an escape velocity....the speed at which I'd need to travel to not detect the odor. I don't know if breaking the "Smell Barrier" will be achievable by bicycle, but I hope to be the first.
If there is indeed a smell Doppler effect, the odor vector would vary based upon my speed. I may need to test this on future rides. By detecting the variations due to speed, I may be able to calculate an escape velocity....the speed at which I'd need to travel to not detect the odor. I don't know if breaking the "Smell Barrier" will be achievable by bicycle, but I hope to be the first.