In 1900, the German scientist Planck
discovered that when atoms split, they released great energy. He called this
energy "Quart", which is known as the discovery of the century.
Before 1903, stainless steel was not only easy to oxidize, but also easy to
corrode. From 1903 to 1912, stainless steel became an exceptional industrial
metal. Today, stainless steel is not only used in industry but also widely
used in medical treatment and the human body.
Before the air conditioning, the
Chinese emperor wanted to take the ice out of the mountains in summer. In 1911,
the American w. Carrell invented air conditioning and people began to win
the sky.
The Qinshan nuclear power
station has successfully connected to the network for power generation. The
supercomputers of the Galaxy series have been successfully developed
successively.
The long series of Rocket rockets have reached the international
advanced level in technical performance and reliability. Chinese scientists
completed the 1% genetic mapping of the human genome project and built the
first complete physical map of the rice genome in the world, many indices of
the world's largest water conservation project, the Yangtze River Three Gorges the water conservation project, have broken the world water conservation project
record; China for the first time located and cloned the gene of high-frequency
neurogenic deafness and opalescent dentin II in the world.
In 1897, the German Felix Hoffman
synthesized acetylsalicylic acid. Two years later, the product was registered
as aspirin. A century later, it became the most popular drug.
In 1913, Henry
Ford, the American automaker, officially opened its assembly line, which
reduced the cost, improved efficiency, and made the car enter the house of
ordinary people. It has become a decisive event in this century.
On August 14,
1901, the first motor aircraft began to fly. In 1933, the world's first regular
route was opened, greatly expanding the space for human activities.
In 1913,
after patenting the tungsten wire, the lamp began to glow. The facsimile was
transmitted for the first time in 1902, and its commercial use began in 1926.
Cinema and cinema became a kind of entertainment on December 28, 1895.
The first jazz singer with popular sound premiered in New York in October 927. The
first color film dressing table City 1935 The first widescreen film came out in
1953. In 1907, the world's first photocopier appeared in New York, United
States.
In 1959, the Xerox 914 electrostatic copier entered the market and
began to be widely used. Color photos have the beginning of color photography
in the last century, but it was not until the 1940s that the first batch of
color film emerged. Color photos have come a long way throughout the century.
Television in the world today has a very high per capita television (an average
of one for every 10 people) since 1927, it began in the hands of Americans. The Internet, invented in this century, is the largest computer network connected
by many networks in the world. Together with television, daily world news
spreads to all corners of the earth in a timely manner and opens the curtain of
the information age.
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The first laser was born in 1960. Contact lenses were
invented in the Middle Ages. It was not until 1945 that the appearance of
contact lenses made substantial progress. In 1964, soft contact lenses were
invented.
The cardiograph was invented by the Swedish oak Senning in 1958. It
began to be used in the 1960s. Until now, countless lives have been saved.
Electronic computers began to develop in World War II, and the first computer
similar to today's electronic computers was manufactured in 1943.
Penicillin
was first developed by Fleming of England in 1929 and used for soldiers wounded
in World War II. World Cup in 1941. It is known as the invention next to the
atomic bomb.
The contraceptive pill was developed in 1959, and people began to
control their birth rate.
Plastic, which did not exist before this century, has
become an indispensable part of our century. It began with the phenolic plastic
production method invented by the American L. Baekeland in 1909. Since 1935,
radar has been used to measure invisible or long-distance targets with very
short radio waves.
The radio In 1901 The Italian Marconi successfully made the
first radio communication, and in 1948 the semiconductor radio was invented.
Radiography, which existed in 1895, has not been used in medical treatment
until the first 10 years of this century and has exerted enormous energy.
Nuclear power was made in 1939 and was used for power generation in 1956. The watch is one of the inventions that have changed a lot in human history.
The most comfortable watch that can be worn appeared in 1904. In 1945, Veron Keefer
designed the first artificial kidney, a hemodialysis device that prolonged the
lives of countless people with kidney failure.
In 1983, Volkswagen AG in
Wolfsburg, Germany, produced the first robot. Sputnik On October 4, 1957, the
first Sputnik launched by the former Soviet Union opened the era of human
space.
In the history of credit card money, the appearance of the credit card
is the biggest revolution since the appearance of money. The first credit card
was issued in the 1920s, and the common one was issued in 1950. Transfusion in
1900, when Carl Rand discovered a person's blood type, became possible.
In
1997, British scientists successfully raised the cloned sheep, Dolly. Before
that, the only drawback of all human imaginative creations was that "man
cannot do man", so for a long time, human beings attributed this magical
creation to the mysterious invisible and intangible power. With the birth of
cloning technology, the last myth of the twentieth century began to be destroyed.
In addition to the important inventions mentioned above, two other great
achievements of human beings in this century will be recorded in history: the greatest achievement of the United Nations in this century is that human beings
have found their way to peace, and the United Nations was born due to the lessons
of the blood of the two world wars.
We have seen this role in the war in Bosnia
and Herzegovina, the civil war in Cambodia, and the peace talks in the Middle
East. In the past, many international disputes over world trade were primarily
aimed at competing for resources, and wars were often too expensive.
International trade allows the free exchange of world resources in a peaceful
state. The flow and distribution of resources can be achieved through tariff
and non-tariff negotiations.
The need for war is minimized. In circumstances of
rapid economic development and lack of resources, it is a great achievement not
to have war in 50 years.
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