喜马拉雅山脉中的珠穆朗玛峰，被誉为地球之巅，海拔8848.86米。然而，这个“最高峰”的称号其实充满争议。测量标准、地球形状、地壳运动，甚至海平面定义都影响着它的高度。探索真正的“最高”究竟意味着什么，让人重新思考山峰的秘密。
Temperatures here can hit minus 60 degrees Celsius.
The air contains only a third of the oxygen we need to survive.
And yet, thousands of people have braved these harsh conditions to stand here at the highest point on the planet.
Or is it?
Everest checks in at 8,848.86 meters tall today.
But we still don't really know if that's right.
Because on a planet that isn't perfectly round wrapped in a crust that keeps moving, measuring a mountain turns out to be way harder than you think.
Hey smart people, Joe here.
To someone alive in the 18th century, Mount Chimborazo in Ecuador was the tallest mountain on Earth.
Then in 1808, that honor shifted to Dhaulagiri, until 1847, when this one stole the title, which had only held for five years, until Mount Everest was measured as the officially verified definitely tallest mountain on Earth.
