Discoveries
What did they discover during the Han dynasty?
They discovered comets and that the moons light is just it reflecting the sun.
Is this the oldest compass?
Yes
Which way does the ball of the seismograph go?
The direction of the earthquake.
What did they call comets?
They called comets broom stars.
What shape was the lodestone carved into?
It got carved into the shape of a spoon
What was on the inside of it?
Inside of it was a pendulum
What happens during a solar eclipse?
During a solar eclipse the moon blocks out the sun.
What did the ancient Chinese use it for?
The ancient Chinese used it to align temples and houses.
How far can it detect earthquakes?
It can detect earthquakes from hundreds of miles away
What does the name mean?
“Broom star” means a comet with a visible tail.
Which direction did the spoon always point?
South
What happened when an earthquake is detected?
One of the 8 animal heads spits out a ball in the direction of the earthquake.
Why is the comet called that?
The broomstick symbolizes the tail and the broom head is the comets head.
Since when has this compass been around from
This compass has been around since 206 bc
What is the seismograph made out of?
IT is made out of bronze