Social Sciences and History / Unit 10 SSH 0907 short lesson, about 20 seconds
Parallels and Meridians
Captions available
The idea
The graticule, latitude and longitude, gives every absolute location an address in degrees. Parallels are circles parallel to the equator, numbered by latitude from zero at the equator to ninety at the poles. Meridians are half circles joining the poles, numbered by longitude.
In practice
The Tropics at twenty-three and a half degrees.
Where people slip
The polar circles at sixty-six and a half.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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