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Charles Wagon

4
Average: 4 (2 votes)
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Can we leave for Mars today?

4.25
Average: 4.3 (4 votes)
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Build a Solar System

4
Average: 4 (2 votes)
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Parallax Method

4.333335
Average: 4.3 (9 votes)
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Cosmic Velocities

4.642855
Average: 4.6 (14 votes)
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Measurement of the Earth Circumferance

4.625
Average: 4.6 (8 votes)
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Solar Cycles (The Butterfly Diagram)

4.125
Average: 4.1 (8 votes)
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Teaching Circular Motion through Guided Research

4.555555
Average: 4.6 (9 votes)
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How long does a day last on Jupiter?

4.384615
Average: 4.4 (13 votes)
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Studying the laws of photoelectric effect

4
Average: 4 (6 votes)
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