Science
-The astronomers recorded comets but the called them broom stars.
-The Chinese astronomers invented the seismograph which is a tool used to find earthquakes.
-They also invented the magnetic compass which is used to tell you directions.
-The Chinese astronomers also found out that solar eclipses occur when the moon blocks the sun rays from hitting the earth.
-The astronomers recorded comets but the called them broom stars.
-The Chinese astronomers invented the seismograph which is a tool used to find earthquakes.
-They also invented the magnetic compass which is used to tell you directions.
-The Chinese astronomers also found out that solar eclipses occur when the moon blocks the sun rays from hitting the earth.