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ASTR 1P01, CLIP 54: How Eratosthenes Determined the Size of the Earth (Brock University Physics) View | |
ASTR 1P01, CLIP 52: How Aristarchus Deduced the Relative Sizes of Earth and Moon (Brock University Physics) View | |
Astronomy GCSE Topic 3 Eratosthenes and The Circumference of the Earth (Astronomy GCSE Help) View | |
Putting the E-A-R-T-H in Eratosthenes (Bob Swanson) View | |
How Eratosthenes measured the world with a stick in 250 BCE (The Silly Vicar) View | |
ASTR 1P01 CLIP 59A: Kepler (Brock University Physics) View | |
ASTR 1P01, CLIP 46: How Regions of Totality and Partiality Track Across the Earth's Surface (Brock University Physics) View | |
ASTR 1P01, CLIP 40: Phases of the Moon (Brock University Physics) View | |
ASTR 1P01, CLIP 51: How Aristarchus Deduced That the Sun is much Farther away than the Moon is (Brock University Physics) View | |
ASTR 1P01, CLIP 53: Stellar Parallax and Objections to the Heliocentric Model (Brock University Physics) View |