Bizarre Ice Cave Melts In The Winter & Freezes In The Summer | Secrets of the Underground
17.3 هزار بار بازدید -
5 سال پیش
-
Rob Nelson and Stefan investigate
Rob Nelson and Stefan investigate a bizarre ice cave in Pennsylvania in an attempt to identify what causes it to freeze in the summer and melt in the winter.
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5 سال پیش
در تاریخ 1398/04/18 منتشر شده
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