posted on Nov, 25 2007 @ 09:39 PM
I thought i would come here, because i know there are very smart people here
once again i am here for help
last time proved to save me emmensly.
I have to do some extra credit for my physics class in order to receive the grade. Sadly, i have procrastinated a bit too much again ha
If anyone could help, please post
First Extra Credit
Use binoculars to monitor how an assigned star varies in brightness. Record how much the brightness changes and how long one cycle of the change
Record the moons phase and position in the star field nightly for five weeks to measure the length of two kinds of month, sidereal and synodic
photograph the moon nightly for a month. Measure the changes in its size and discover how wits distance from the earth varies during the month.
Luckily, i have an extra credit problem i can sub in for those.
Extra credit i can switch in:
Measure the altitude of the Sun or Polaris from two latitudes at least 200 miles apart. You must build the measuring device, measure the altitudes to
an accuracy clearly better then 1%, and use their difference to calculate the Earth's circumference.
ANY help would be greatly appreciated
-Helpless student again