09:17
Quantum Computer: China vs the United States
07:21
User Experience Comparison: Virgin Galactic VS. Blue Origin
10:36
Blue Origin vs. Virgin Galactic Side-by-Side Comparison. Bezos VS. Branson. Billionaire’s Space race
13:36
spacecraft comparison: US dragon, Russia Soyuz and China Shenzhou(part 2)/landing/abort/docking
11:41
Spacecrafts Comparison: US dragon, Russia Soyuz and China Shenzhou (Part 1)/design/capacity/cost
11:04
Space station comparison: China Tian Gong vs ISS
07:21
Mars Exploration: China vs US ( the technological gap between china and US in mars exploration )
10:01
The Fall of Rome
08:30
Why all the Astronauts must speak Russian ?
06:15
From judges to pilots, a brief history of sunglasses
06:01
Why there are only white cars in Turkmenistan?
09:30
Why Canada is not part of the US ?
10:04
Why did Austria not become part of Germany?
09:01
Korean War (Part 2 the aftermath of the Korean War )
13:29
The Korean War （what happened before and after）
18:12
12 Secrets of Japan （ Surprising things you may not know)
18:01
Mouse Utopia Experiment (Behavior sink caused by extreme material satisfaction)
14:03
The Great Depression 1929 (A nightmare behind prosperity)
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the interesting world from a lazy cat point of view.
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