Submitted by pecansforall t3_11yzqil in rva
Xytakis t1_jddkwn5 wrote
Reply to comment by STREAMOFCONSCIOUSN3S in They're counting bikes downtown by pecansforall
The tire hits the first wire and after it hits the second wire it calculates the time it took so it knows the speed
[deleted] t1_jddltrz wrote
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