Here’s what would happen if you tried to dig to China

Summary List Placement
To dig to China, you’d need to start your journey from Chile or Argentina — the location of China’s antipode (or opposite point on Earth).  
You would need a super-powered drill to get through rock and metal within Earth’s three layers.
First, there’s the Earth’s crust. It’s the thinnest of three main layers, yet humans have never drilled all the way through it.
Then, the mantle makes up a whopping 84% of the planet’s volume.
At the inner core, you’d have to drill through solid iron. This would be especially difficult because there’s near-zero gravity at the core. 
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Following is a transcript of the video.

Narrator: If you want to get to the opposite end of the world, it’s a hike. About 20,000 kilometers. But what if you didn’t have to travel across the surface? What if you could dig straight through to the other side?

If you’re trying to dig to China from the US, there’s something you should know first. The opposite point on the planet isn’t in China. It’s somewhere in the middle of the Indian Ocean. So, to get to China, you should start digging in either Argentina or Chile.

Your first challenge would be digging through the Earth’s crust. It’s the thinnest of Earth’s three main layers, yet humans have never drilled all the way through it. As you descend, you’d soon reach the depth of the Paris Catacombs, the deepest metro station, and the devil worm, the deepest animal we’ve ever discovered underground.

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Then, it would start to get hot. At 4,000 meters down, you’d pass the deepest mine on the planet, which is cooled with ice to make workers comfortable, because, down here, temperatures are 60 degrees Celsius. By 8,800 meters, you’ll be as deep as Mt. Everest is tall, but it’s still not the deepest point humans have ever dug. That point is at the bottom of the Kola Superdeep Borehole, at 12,260 meters below the surface. Down here, there’s 4,000 times more pressure than at sea level, and temperatures push 180 degrees Celsius, so you’d need a lot of insulation to carry on and keep from melting.

At around 40,000 meters, you’d reach Earth’s second and largest layer, the mantle, which makes up a whopping 84% of the planet’s volume. Near the border, temperatures climb to around 1,000 degrees Celsius, hot enough to melt many metals, like silver, but not a steel drill. And good thing because you’ll need it to drill through the first part of the mantle, which is made of solid rock, until you reach 100,000 meters, that is, when you might need to switch to a propeller.

Here, the pressure and temperature are so high that, in some places, rock takes on a caramel-like consistency. In fact, it’s this rock that ultimately erupts from volcanoes on the surface. At 150,000 meters, keep your eyes peeled for diamonds. They form when heat and pressure restructure the carbon atoms in this region. Once you reach 410,000 meters, the rock …read more

Source:: Businessinsider – Tech

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