Docstoc
EXCLUSIVE OFFER FOR DOCSTOC USERS
Try the all-new QuickBooks Online for FREE.  No credit card required.

GALILEO

Document Sample
GALILEO Powered By Docstoc
					GALILEO
CONVEX LENS




      f
CONCAVE LENS




   f
      ANGULAR SIZE

                                              h

                        D

  a = angular size of object = tan-1(h/D)

Telescope multiplies a by M = magnification
GALILEAN TELESCOPE
f1                                          f2




     Let r = radius of lens.
     Then angular size of object = tan-1(r/f1)

     Emerging from eyepiece, angular size = tan-1(r/f2)
     Magnification M = [tan-1(r/f2)/tan-1(r/f1)] ~ f1/f2
MOUNTAINS ON THE MOON
    d       Sun’s glancing rays



        R
                R+h = (R2 + (0.1R)2)1/2
                   = (1.01)1/2R
                   = R + 0.005R

                Since R = 1000 mi,
                      h = 5 mi
       MOONS OF JUPITER
East                      West


1/07/1610

1/08/1610


1/10/1610


 1/13/1610
        PHASES OF VENUS:
        PTOLEMAIC VIEW
                         4

Earth                                               Sun
                1     Epicycle    3
                         of
                       Venus

                          2
   1: New Venus                  3: New Venus

   2: Partial Venus              4: Partial Venus
 PHASES OF VENUS:
 COPERNICAN VIEW
                        4



                   1                3

   E                    S
                                          orbit of
                        2                  Venus

1: New Venus           3: Full Venus
2: Partial Venus       4: Partial Venus
     SPEED OF LIGHT



     S
E2           E1
                  d




            d+D

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:25
posted:7/27/2011
language:English
pages:10