the.com/odometer

the loyal witness that counts every mile but can't tell you why you drove them

means The instrument in a vehicle that measures and displays the total distance it has traveled.

from From the Greek 'hodos' (road, way) plus 'metron' (measure) — literally a 'road-measurer.' The ancient world already had such devices: Vitruvius and Hero of Alexandria described geared contraptions that dropped a pebble into a box at set intervals to tally distance. The English word arrives in the 18th century, stitched together from those Greek parts. That same 'hodos' hides in 'exodus' (the way out) and 'method' (a way of pursuing something).

ancient origin
Greeks and Romans dropped pebbles to count miles
rollover myth
old ones reset to zero like a fresh start
tampering crime
rolling back miles is a federal offense
da Vinci sketch
Leonardo designed a cart-mounted distance counter
name math
hodos plus metron means road measure in Greek
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