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Planet Earth

An Ocean Is Hidden Inside Earth, And We’ll Take You There To See It (VIDEO)

An Ocean Is Hidden Inside Earth, And We'll Take You There To See It (VIDEO) 86

Earth’s interior is way more complicated than you probably thought — turns out it has molten metal and hidden oceans, and parts of it are hotter than the surface of the sun.

Check out the video above and/or read the transcript below. And leave your thoughts in the comments. Talk nerdy to me!

JACQUELINE HOWARD: Hey everyone. Jacqueline Howard here. Ever wonder what it’s like inside our planet? Come with me on a subterranean tour all the way from the rocky crust where we live through the layer known as the mantle to the wild half-solid/half-liquid core of the Earth. We’ll also be stopping by a newly discovered underground ocean. Let’s go!

First stop, Earth’s crust–the solid outer layer where we live. The crust is made up of several elements, from iron to silicon to magnesium to sulfur, and its thickness ranges. The continental crust–the stuff found under land–can be up to around 50 miles thick; while the oceanic crust–the stuff under our oceans–is around four miles thick. But let’s see what lies below that.

Now we’re about 50 miles below the surface, at the uppermost region of the mantle. This layer is made up of rock that’s rich in oxygen, silicon, iron, magnesium, aluminum and it extends from here all the way down to around 1,800 miles below the surface.

The mantle is also where molten rock known as magma can form before it flows upward during volcanic eruptions–at which point the magma becomes lava. This was pretty much the picture scientists had of the mantle until earlier this year–when a vast hidden ocean of water was discovered some 400 miles beneath North America. It goes to show that the rocks down here have a pretty impressive capacity to store water. Now let’s travel a little deeper. You ready?

Here we are, 1,800 miles down, at the Earth’s outer core, which runs all the way down to around 3,000 miles. This is a layer of molten iron that surrounds Earth’s inner core. And it’s really, really hot down here. In fact, it’s between 7,200 and 9,000 degrees Fahrenheit. But if you think that’s scorching, wait until we reach the center of the Earth…

And, we made it, to around 3,000 miles down–the uppermost part of the Earth’s inner core. Like the outer core, it’s made of mostly iron but the pressure down here is so intense the stuff is solid–and it’s almost incomprehensibly hot. It’s about 11,000 degrees Fahrenheit down here–hotter than the surface of the sun! Now the actual center of the earth is about 4,000 miles down–but I’m starting to sweat so let’s skip that and head back to the surface…

Phew, back on the surface! If my virtual tour of the Earth’s interior had been a real one, it would have been a first. We all know that no one has ventured beyond Earth’s crust. But how do we know what’s down there? Scientists use waves of energy, called seismic waves, emitted by earthquakes to measure what type of material is inside Earth and where that material lies. See, as seismic waves travel through our planet, the rate in which they’re traveling — whether they’re moving fast or slow — reveals what exactly they’re traveling through, whether that material’s solid, liquid, or something else. Now you know.

Leave your thoughts on what’s lurking inside Earth in the comments. C’mon, talk nerdy to me!



Planet Earth

Polar vortex: “wild” winter is coming in the US, Northern Europe and East Asia after the 16th of January

Polar vortex: "wild" winter is coming in the US, Northern Europe and East Asia after the 16th of January 87

In the upper atmosphere above the North Pole, experts saw a rapidly swirling vortex of cold air that could bring severe frosts to the United States, Northern Europe and East Asia. Serious cold snap and snowy weather are expected after January the 16th.

Snowfalls and a cold snap hit South Korea since the start of 2021, hitting historic snow maximums and temperatures. In the country, for the first time since 1964, television and newer communications are sending people cold snap warnings:

The situation is similar in Japan, where a new snow storm hit historic highs:

On January 7, the thermometer In Beijing dropped to -20 degrees Celsius, breaking the 1966 record. In other regions of China, the temperature is also not sugar, and you can only move around in special uniforms:

The cold even reached Taiwan, where the temperature in some areas dropped below freezing point, snow poured down and people realized that rice terraces can be used as a ski jump:

Even more snow went to Spain, where on January 6, 2021, a temperature of -34.1 ° C was recorded – the lowest on record. After that, a snow storm hit the country, which has not been seen for 80 years:

The same thing happens in Canada and in the northern states of the United States:

It seems that after a stratospheric warming, the subpolar vortex began to split:

The vortex itself is a standard phenomenon. However, this time experts were surprised at his movement. It is possible that in the near future it will be divided into two parts. 

Scientists associate the strange behavior with the changed climate in the Arctic, which has become warmer. From September to December, the amount of ice cover decreased significantly.

The polar vortex is a low-pressure region located in the stratosphere and filled with cold air. When the jet stream of air that holds the vortex weakens, the low pressure area moves south. 

As the ice shrinks, more moisture will move inland. It will turn to snow, so snowfalls are expected. Snow, in turn, reflects heat, leading to a cold snap.

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Planet Earth

Hospital in Naples was evacuated after a new, huge sinkhole appeared

Hospital in Naples was evacuated after a new, huge sinkhole appeared 88

Eyewitnesses said they heard a loud crash at dawn when a huge hole in the ground formed outside the Ponticelli Ospedale del Mare hospital in eastern Naples.

Early in the morning of January 8, 2021, a sinkhole occurred in the parking lot of a clinic in Naples. The depth of the formed cavity is about 20 meters, the total area of ​​the hole is about 2,000 square meters.

No casualties were found at the scene; firefighters say the sinkhole “affected an area of ​​about 500 square meters” and engulfed several cars parked near the hospital.

As the press writes and as a little can be seen from the videos, rescuers and firefighters were running around the pit together with the governor of the area.  But who should be there in the forefront are Italian geologists, since Naples stands in the very center of the volcanic system known as the Phlegrean Fields.

If the surface collapsed, moreover – the surface reinforced with concrete and reinforced from below with some kind of communications, then we are talking about serious soil deformations caused by the activity of magma.

Italy has been in doubt since the summer of 2020, because swarms were observed there in very atypical places in May, and according to the forecasts of old Italian seismologists, who had witnessed many strong earthquakes, it should have boomed in the August region.

Fortunately, nothing bad happened to Italy and there was no big earthquake. But, since there are swarms, it means that something is being prepared, the magma is gathering strength. 

Following this particular sinkhole event – an obvious sign that a major earthquake in Italy is already very close.

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Planet Earth

A new great pandemic cycle has begun (again) in China

A new great pandemic cycle has begun (again) in China 89

In the first months of 2020, the whole world with a certain fright followed the events unfolding in China, where people fell on the streets during the day and astronauts wandered, and in the evening crematoria began to smoke. And now, with the onset of December, the cycle seems to be repeating itself.

Shunyi area in Beijing, where the authorities announced “wartime status” the day before. As you can see in the videos, thousands of people are lined up in the queue for mandatory testing:

Dalian city, where “wartime” is also declared. Neighborhoods are blockaded, people are walled up in entrances, familiar characters of George Lucas roam the streets:

Chinese ‘rescuers’, before performing a combat mission:

Chengdu City:

Daluo Port, Yunnan – tourists came for adventure and they received the ‘time of their life’ after leaving the ramp:

If something happens in Beijing, it does not mean that tomorrow the same will happen everywhere. However, the trend towards such dynamics is observed and, as the practice of the first wave of the pandemic has shown, all countries and people, to one degree or another, have taken into account the ‘Chinese experience’. 

Therefore, one must think that everything will now be in peace, as in spring – a new global round of the fight against the Covid has begun in China, a new great pandemic cycle!

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