This is the story of "Luoyang paper is expensive". This story tells us that the relationship between supply and demand will directly affect prices. Simply put, it is "things are rare." In our impression, what is usually expensive is nothing more than gold, silver, Baoyu, diamonds and other cultural relics, and this article is used to take stock of something much more than Kinginka:
The chemical element of gold is called Au. Because of its very stable properties and low melting point, it is easy to be melted and forged. So it has been the world's hard currency for thousands of years. No matter how the banknotes of various countries expand and contract, gold will never move.
/kloc-before the 0/9th century, that is, before the completion of the first industrial revolution, the world's gold mining was very small. According to expert statistics, in the thousands of years before19th century, the total amount of gold mined by human beings was less than 10000 tons, so gold was very precious in ancient times.
However, with the maturity of mining technology, the amount of gold mined in the second half of the19th century exceeded the sum of the previous 5,000 years, which also led to the collapse of gold prices. Today's international gold price is about 390 yuan/gram. Of course, "TOP4" here only refers to the ranking in this article. Comparing gold makes us more conceptual.
Top 3- Tritium Tritium is an isotope of hydrogen. Hydrogen has only 1 proton, while tritium contains 1 proton and two neutrons, so it is also called overweight hydrogen. The content of tritium is extremely rare under natural conditions, and it can only be obtained by preparing tritium through nuclear reaction.
In the science laboratory, scientists can bombard lithium with neutrons to produce tritium. Its main use is still for thermonuclear weapons or as raw materials for thermonuclear fusion reactions. To be close to the people is to make a light-emitting tritium tube.
It is precisely because the preparation of tritium is quite difficult that the price of tritium is naturally quite high. Its price is about 200 thousand yuan/gram, which is a painful price for many rich people.
Top 2- Diamonds Although diamonds are not magical in terms of elements, they are only the accumulation of carbon elements. Essentially, it is not much different from burning coal. However, it is difficult to form simple carbon-diamond in nature, and it can only appear at high temperature and high pressure.
But even so, diamonds are not much more expensive than many other gems, mainly relying on marketing. 1939, diamond dealer De Beers put forward the slogan "A diamond lasts forever", which directly linked diamonds with feelings such as love, and diamond dealers began to strictly control the total amount of diamonds pouring into the market. Under such a monopoly, the price of diamonds began to soar.
At an auction in Geneva on 20 17, a pair of pear-shaped diamond earrings for vegetables weighing about 16 carats fetched an amazing price of 395 million yuan, about 247 million yuan/gram, which was amazing. Even if these auction gimmicks and marketing methods are put aside, the value of diamonds can reach nearly 300 thousand yuan/gram, which is still very valuable.
Top 1- antimatter antimatter is definitely the most expensive substance at present. A few decades ago, antimatter only existed in some science fiction and scientific hypotheses. It was not until 1995 that CERN produced the first antihydrogen atom that antimatter entered the realistic stage.
The so-called antimatter, as its name implies, is a substance whose physical and chemical properties are opposite to those of existing substances. For example, we know that protons are positively charged and electrons are negatively charged, so antiprotons can be negatively charged and antiprotons are positively charged. Once the positive and negative matter meet, it will annihilate, thus releasing huge energy, and its energy conversion efficiency far exceeds that of nuclear fusion or nuclear fission.
According to statistics, only the antimatter and positron annihilation of 1g can release energy comparable to that released by a nuclear explosion. It is precisely because of this property that antimatter has become the research object of scientists.
But it is very, very difficult to make antimatter, and few countries have the strength to conduct antimatter experiments. According to a paper published by NASA, it takes at least $25 billion to make 1g antimatter and $2.5 trillion to make 100g antimatter. At present, the market value of Apple is only 2. 15 trillion, which is only 65438+.