Discovery

NASA to study Unidentified Aerial Phenomena aka UFOs
00:04:14
Pace Counting and Dead Reckoning
00:13:28

Pace Counting and Dead Reckoning

4,294 Lượt xem ·

Jugglers Hit the Right Note
00:01:46

Jugglers Hit the Right Note

1,121 Lượt xem ·

Balancing Act | Outrageous Acts of Science
00:01:22
The Secret Is in the Space Suit
00:04:12

The Secret Is in the Space Suit

711 Lượt xem ·

FLAG/ FAN FRIDAY PANAMA (Geography Now!)
00:13:28
Missouri s Strange History of Extreme Natural Disasters
00:04:16
How Was the Grand Canyon Formed?
00:02:21

How Was the Grand Canyon Formed?

2,941 Lượt xem ·

地球上最可怕的蜥蜴—科摩多龍
00:02:31
What is a Harvest Moon? NASA explains the science
00:01:55
What Made Fred West a Notorious Serial Killer? (Crime Documentary) | Born To Kill | Real Stories
00:45:49
The Giant British Flamethrower Made For World War 1 | Secret Weapon Of The Somme | Timeline
00:46:58
What s The Best Substance To Cloud Up A Car Windshield?
00:03:08
15 Most Dangerous Toys in History
00:15:40

15 Most Dangerous Toys in History

4,380 Lượt xem ·

The Crucial Role Of Lord Dowding In Saving Britain | The Battle Of Britain | Timeline
00:47:15
SpaceX launches Cargo Dragon to space station - See deployment & landing too!
00:12:49
Protecting Leopards From Human & Wildlife Conflicts | National Geographic
00:09:12
為了寶寶，獴媽媽會暴力驅逐雌性同伴《國家地理》雜誌
00:01:11
House Prices in Various U.S. Cities
00:10:42
I Helped My Daughter Die (Medical Documentary) | Real Stories
00:29:02


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