'Gowin Knight's 1745 development of a better way to magnetize steel allowed him to improve this device used by mariners'
a compass
LESSER-KNOWN SCIENTISTS: Gowin Knights 1745 development of a better way to magnetize steel allowed him to improve this device used by mariners
Gowin Knight's 1745 development of a better way to magnetize steel allowed him to improve this device used by mariners
Gowin Knight's 1745 development of a better way to magnetize steel allowed him to improve this device used by mariners
LESSER-KNOWN SCIENTISTS
a compass
LESSER-KNOWN SCIENTISTS