Exercise F, page 110.0:00
Welcome to Natural Wonders, the talk show that gives listeners exciting information about spectacular places around the world.0:04
I'm John Townes, and today we're going to talk about Mexico's Cave of Crystals.0:11
This underground cave contains the largest natural crystals ever found.0:16
With me today is Professor Andy Stewart, who is a leading geologist.0:21
Andy, tell us about the Cave of Crystals.0:25
In 2000, a group of miners discovered the crystal cave purely by accident.0:29
They were working in the Naica silver mine when they broke through the walls of the cave.0:34
They were surprised to discover enormous crystals.0:39
However, when the first scientists explored the underground cave, they faced great difficulties due to the extreme temperatures in the cave.0:42
It was boiling hot down there, about 50°C, and extremely humid, so the only way for the scientists to explore the cave was to put on a special cooling suit and a mask.0:55
What did they see down there?1:07
They saw beautiful crystal formations that had the shape of delicate flowers.1:09
What was truly remarkable, however, was their size.1:14
Some of the crystals were 11 meters tall, and resembled huge pillars of ice.1:18
So what will happen to the Cave of Crystals?1:25
Well, the cave is accessible today only because the mining company's pumping operation keeps it clear of water.1:27
If the pumping were to stop, the cave would flood.1:34
And if the mining company doesn't make any money, it might stop the entire operation.1:38
Well, that's very interesting.1:43
Thanks for sharing your experience with us.1:45
Клик по слову — перевод и «+ в мои слова» (в любом режиме). Клик по строке или таймкоду — перейти к этому месту записи.