throwaways

After interbreeding, we won't be throwing anything away.

• A Astrolabe: circular tool used to calculate latitude by measuring the altitude of the sun or Polaris (the North Star)
• Ch Chronometer: a highly accurate timepiece crucial for calculating longitude
• Cr Cross-staff/Jacob’s Staff: wooden tool used to determine latitude by measuring the altitude of the Sun or stars
• L Lead Line: a rope with a lead weight lowered to determine water depth and seabed composition
• M Magnetic Compass: early versions using magnetized needles on wood/cork in water; later versions using dry cards and pivots to indicate magnetic north
• S Sextant/Octant: measuring the angle between the horizon and a celestial body (Sun, Moon, or stars) to determine position
• T Traverse Board: used to record speed, time, and direction during each four-hour watch

art, faith, math, music, science