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13 май 1905 г. - Stereoscope
Описание:
Stereoscopes reinforced topics by showing students images in 3-D.
Добавлено на ленту времени:
Educational Technology
By
Dayanira Feliciano
14 ноя 2017
0
0
495
Дата:
13 май 1905 г.
Сейчас
~ 120 г назад
Изображения:
YouTube:
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