Surface markers provide insurance against possible separation from the boat.
Not exact matches
Sunspots,
markers of magnetic activity on the sun's
surface,
provide a visual proxy for the cycle's evolution; they appear in droves at maximum and all but disappear at minimum.
Sunspots,
markers of magnetic activity on the sun's
surface,
provide a visual proxy to mark the cycle's evolution, appearing in droves at maximum and all but disappearing at minimum.