A “Zipper” Cut Through the Earth#
Earth has two great oceans — the Atlantic and the Pacific.
They’re separated by the Americas. If a ship wanted to go from the Atlantic to the Pacific, it used to have to sail around the southern tip of South America — an extra 10,000 kilometers!
Then, people dug an 82-kilometer “ditch” through the narrowest part of the Americas — this is the Panama Canal.
Like cutting a zipper through the Earth, connecting the two oceans.
Why Build a Canal?#
In the 16th century, the Spanish were already thinking: can we dig a passage through the Americas?
Because sailing from the Atlantic to the Pacific around South America was too far. A shortcut would make trade much easier.
But the middle of the Americas is tropical rainforest and mountains — digging a canal was no easy task.
It wasn’t until 1904 that the Americans finally began.
How Hard Was the Construction?#
The Panama Canal’s construction was one of the most difficult engineering projects in human history.
First, complex terrain. The canal had to cross mountains, rivers, and tropical rainforest. Workers used dynamite to blast through mountains and excavators to dig earth, working for a full 10 years.
Second, rampant disease. The tropical rainforest was full of mosquitoes, and many workers contracted malaria and yellow fever. Tens of thousands of workers died from disease during construction.
Third, large water level differences. The Atlantic and Pacific oceans aren’t at the same level, and Gatun Lake in between is 26 meters above sea level. What to do?
The Lock Solution#
Engineers invented locks — a kind of “water elevator.”
After entering the canal, a ship is “lifted” to Gatun Lake’s level, crosses the lake, then is “lowered” to the ocean level on the other end.
Like riding an elevator — the ship enters the “elevator,” rises 26 meters, then comes back down.
The entire process takes 8-10 hours.
The Canal Changed the World#
After the Panama Canal opened, ships from New York to San Francisco no longer had to sail around South America, shortening the journey by 15,000 kilometers!
Every year, 14,000 ships pass through the canal, carrying 5% of global trade goods.
It’s called the “Crossroads of the World” — connecting the Atlantic and Pacific, and also connecting East and West.
Learn from the World#
The Panama Canal teaches us one thing: sometimes, “going around” is worse than “making a way.”
Before, ships could only sail around South America. Safe, but too far. The Panama Canal gave people a more direct option.
Maybe life works the same way — instead of taking the long way around, it’s better to find a way to “cut” a new path.
Knowledge Card#
- Location: Panama, connecting the Atlantic and Pacific Oceans
- Type: Modern Engineering Marvel
- Key Numbers: 82 km long, opened in 1914, locks can accommodate ships up to 366 meters long
- Engineering Highlights: Three-level lock system, using Gatun Lake as an intermediate waterway
- Fun Fact: The Panama Canal is curved — going from the Atlantic to the Pacific actually means heading south
- Source: Panama Canal Authority