chronometer

related words
zodiacal
near-earth
3-sphere
tachyon
maser
gravitationally
helium-3
r^2
pion
comoving
diffract
meteoroid
radiometer
helium-4
synodic
auroral
varf
lensing
photosphere
coulomb
related documents
Celestial navigation
Navigation
John Harrison
United States Naval Observatory
Watch
Time
James Cook
Board of Longitude
Clock
Nevil Maskelyne
Edward Sabine
Commercial Revolution
Dead reckoning
Kipton, Ohio
Greenwich
Holborn
Jean-Charles de Borda
Royal Observatory, Greenwich
Universal Time
Compass
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