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What if a billion-story skyscraper was built?
Anecdo
7.2
03:44
What if a billion-story skyscraper was built?
If man builds the Great Wall on earth, 480 kilometers long and 213 meters high.
Anecdo
7.2
04:08
If man builds the Great Wall on earth, 480 kilometers long and 213 meters high.
What would happen if a ring world was built in space?
Anecdo
7.2
03:16
What would happen if a ring world was built in space?
The
Anecdo
7.2
01:10
The "Agent" bicycle built by the young man, the seat will eject and spray fire. It's so cool.
God built a super sports car with matchsticks, and the finished product is amazing!
Anecdo
7.2
01:10
God built a super sports car with matchsticks, and the finished product is amazing!
To help fish cross the dam, engineers invented and built fish ladders.
Life
7.2
01:02
To help fish cross the dam, engineers invented and built fish ladders.

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