How many places on Earth have not been fully explored?

The depths of the sea, the interiors of primeval forests, some no-man's lands, some places in the Antarctic and the Arctic and the depths of the desert.

There are still many places that have not been fully explored, such as the depths of the ocean, the interior of the earth's crust, and the earth's inner core.

Lots of places. Because the earth is very large, and the scope of human exploration is still very small, there are still many places that have not been fully explored.

We all know that the earth is the home that everyone lives by, and it stands to reason that we should know the earth very well, but until today, there are still certain blind spots in people's understanding of the earth, especially the underground, which has achieved its own lifeThe most important teaching is that we can't analyze the "anatomy" of the earth, so why can't people dig through the earth? I think it's not just because of technology, but also because it's complicated because the earth itself is enough to answer.

First of all, no matter which scientific research we carry out, scientific research is inseparable from scientific and technological progress, and if scientific and technological progress does not develop to a certain relative level, their scientific research will encounter many difficulties, but these difficulties are usually objectively difficult to overcome. Now we can't dig through the earth, to a large extent, because our scientific and technological progress is not relatively developed, if scientific and technological progress reaches that relative height, then everything can become a reality.

Secondly, one of the other factors is that the structure of the earth itself is relatively complex, and human beings sometimes have the illusion that when they build a certain project such as the water connection, they are often very close to the center of the earth, but the fact is that it is only on the surface of the earth, that is, the upper edge of the earth's interior, and the distance between the center of the earth and the center of the earth is still very far away. If you want to connect the earth, you have to go a long way down, and gradually go from the interior of the earth and the core to the core, which shows that this is a very difficult task.

We all know that today's talents often fail to connect to the earth, not because of a single condition, but because of a combination of factors. The complex structure of the earth exists objectively and cannot be changed, so we need to work hard to improve the strength of science and technology, which needs to take into account many problems, such as a means for earthwork excavation and rock formations, and the problem of severe hypoxia underground; Add to that the uncertainty and it's becoming more and more difficult to connect to Earth.

Nowadays, why not dig through the "earth" because science and technology are not enough? There are actually many reasons for this. First of all, like the Kola Super Well project in the Soviet Union, this is a bottomless pit, and the amount of money spent is impossible to estimate, and as the excavation depth deepens, various problems may be encountered.

It's not that you don't dig, because you can't do it! This is because the center of the earth, like the ocean, has not been studied thoroughly by humans so far.

Once this is done, it may bring great crises and disasters to the earth, which cannot be done with our current science and technology.