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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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1 ene 100 año - Ptolemy's Discovery
Descripción:
Ptolemy discovered how light beams bend when traveling from air to glass.
Añadido al timeline:
Gr. 8 Science Unit C Section 1.0 Timeline
By
April Santos
5 nov 2018
0
0
425
fecha:
1 ene 100 año
Ahora mismo
~ 1927 years ago
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