the.com/telemetry

Distant machines confessing their secrets, one data packet at a time, whether you asked or not

means The automated measurement and wireless transmission of data from a remote source to a receiving station for monitoring or analysis.

from A 19th-century scientific compound built from Greek pieces: tele-, "far off, distant" (the same prefix lurking in telephone and telescope), plus -metry, from metron, "measure." So at its root it simply means "measuring at a distance" — a word stitched together by engineers who wanted to read a gauge they couldn't stand next to.

origin
From Greek 'tele' (far) plus 'metron' (measure)
deep space
Voyager still beams telemetry from interstellar space
motorsport
F1 cars stream thousands of channels each lap
medicine
Hospitals track hearts wirelessly via telemetry units
your phone
Quietly reports usage you forgot to opt out of
for instance

apollo 13 telemetry — oxygen tank explosion data transmitted to mission control, april 1970

formula 1 car telemetry — real-time sensor data from 300+ sensors per car, mercedes f1 team 2024

spacex starship telemetry — flight data from integrated flight test 3, april 2024, boca chica texas

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