this post was submitted on 28 Apr 2024
168 points (98.3% liked)
What is this thing?
5519 readers
90 users here now
Let us help you identify that mysterious object you’ve found.
Currently in CHALLENGE mode: If you've got something obscure knocking about, post a picture, and let's see how we do. Please prefix such posts with "CHALLENGE:" so we know we've got a fighting chance.
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
The circumference? Why would that matter? You have distance between the detectors and you have the time between their triggering. That's enough to get a good estimation of the speed and direction of the triggering vehicles.
Yeah I mixed up the knowledge of how wheel size impacts speedometer accuracy with this
Whoops