Please Scroll Down to See Forums Below
napsgear
genezapharmateuticals
domestic-supply
puritysourcelabs
UGL OZ
UGFREAK
napsgeargenezapharmateuticals domestic-supplypuritysourcelabsUGL OZUGFREAK

How many rotations of the earth...

"Basic planetary data. The mean distance of Earth from the Sun is about 149,600,000 km (92,960,000 miles). The planet orbits the Sun at a speed of 29.8 km (18.5 miles) per second, making one complete revolution in 365.256 days. As it revolves around the Sun, Earth spins on its axis and rotates completely once every 23 hours 56 minutes 4 seconds."
 

This is correct. The earth revolves around the sun 365.24 times per year, but rotates 366.24 times per year. Gregory didn't know the Earth moved around the sun. He thought the Sun moved around the earth. If you were to view the Solar system from above the plane of axis, you would see the earth rotate 366 times, not 365 times along its orbit to return to the same place.

Look up sidereal time and rotational period.
 
"Basic planetary data. The mean distance of Earth from the Sun is about 149,600,000 km (92,960,000 miles). The planet orbits the Sun at a speed of 29.8 km (18.5 miles) per second, making one complete revolution in 365.256 days. As it revolves around the Sun, Earth spins on its axis and rotates completely once every 23 hours 56 minutes 4 seconds."

I said rotation not revolution.
 
This is correct. The earth revolves around the sun 365.24 times per year, but rotates 366.24 times per year. Gregory didn't know the Earth moved around the sun. He thought the Sun moved around the earth. If you were to view the Solar system from above the plane of axis, you would see the earth rotate 366 times, not 365 times along its orbit to return to the same place.

Look up sidereal time and rotational period.

I say dont give him the K for his initial failure to use sig fig's.... and he's a dirty monkey
 
Top Bottom