'On June 1, 1831, James Clark Ross discovered this when a compass needle he was holding pointed straight down'
Magnetic North Pole
SCIENCE: On June 1, 1831, James Clark Ross discovered this when a compass needle he was holding pointed straight down
On June 1, 1831, James Clark Ross discovered this when a compass needle he was holding pointed straight down
On June 1, 1831, James Clark Ross discovered this when a compass needle he was holding pointed straight down
SCIENCE
Magnetic North Pole
SCIENCE