Japan has hidden 50,000 tons of 'ultra-pure water' 1,000 meters underground. What is the purpose for more than 20 years?
Everyone knows that every country in the world is now vigorously developing science and technology, and comparative technology is the primary productivity of development. What we are going to talk about today is about a scientific research project in Japan. At a distance of 1,000 meters, build a large project that can store a full 50,000 tons of ultra-pure water. The purity of this ultra-pure water has reached 100%. At present, 50,000 tons are indeed stored underground. I have not drank a drop for 20 years. , What kind of scientific research project is it?
The reason why Japan stores a full 50,000 tons of ultra-pure water is mainly for the construction and research of the "Super Kamiokande Detector". Of course, this so-called Super Kamiokande Detector has been built as early as 1983. The reason why Japanese physicists were able to win Nobel physicists is mainly because of this thing. Of course, Japan will not build such detectors for no reason.
The main research object of the Super-Kamiokande detector is neutrinos, and the reason for storing 50,000 tons of ultra-pure water has a lot to do with neutrinos, because neutrinos themselves are very difficult to be detected. The captured particles, which are not charged, can easily travel through various substances in the universe, and move very fast. This is just the surface. It is very difficult to capture such particles. But when neutrinos move in ultrapure water, they will leave relatively weak constant bases, and such traces can often help us explore neutrinos.
The reason why this large-scale detector must be built underground is mainly to block the ray signals from the universe. It is said that this large-scale device is 41.4 meters high and 389 meters in diameter. The material used is stainless steel. With a cylindrical shape, it will take at least two weeks to completely fill the entire container. The entire detector is divided into two parts, the inner and outer parts. Tens of thousands of photomultiplier tubes are installed on the inner wall, which can directly detect the When the micron moves in the water, it produces radiation.
Of course, the exploration of neutrinos is only a part of the detection project. The original purpose was to detect the decay of protons and observe the explosion of supernovae. Of course, nearly 40 years have passed, and Many very powerful achievements have been made, and it is precisely because of the observation of supernova explosions that Japan has opened up a branch of astrophysics-neutrino astronomy.
As early as 1987, supernova neutrinos were detected for the first time, thus proving the correctness of the supernova theory. First of all, let’s talk about what is called supernova neutrinos? As long as the star is constantly evolving, it will continuously emit neutrinos, and at the same time take away a large amount of energy through these neutrinos, so as to speed up the evolution of the star itself, thereby shortening the time required for the evolution of the star. For the entire physics community , have this very important meaning.
The existence of neutrinos has been recognized by most physicists, but up to now, neutrinos have not been captured in a real sense, only the traces left by them passing through the earth can be observed, and this kind of Weak traces can only be detected in ultra-pure water, so in fact, for now, neutrinos can only be regarded as theoretical things. Although Japan has spent a lot of manpower, material resources, and financial resources, it is still Without seeing the true face of neutrinos, we can only see the development of science and technology in the future.
As for ultra-pure water, it is actually undrinkable. Don’t get me wrong. It doesn’t mean that the purer the water, the healthier it is to drink. In fact, it is not. Ultra-pure water has a strong solubility and is easy to absorb some. Nutrients of other substances, if we drink ultra-pure water, we will experience physical discomfort. If we soak in ultra-pure water for a long time, it will cause great damage to the skin, so overall, ultra-pure water is still Don't drink it directly. Of course, this cannot deny the role of ultra-pure water in medicine.