1, the atomic bomb
August 1945, the destruction of the earth's Pandora's box in Japan, Hiroshima and Nagasaki was opened, at that time, the international community was bent on this extremely powerful and deadly destructive weapons to overwhelm each other. The United States first in July 1945 in New Mexico test explosion success, the Soviet Union followed in 1949 successful test explosion, the United Kingdom is 1952, France is 1960, China is 1964, according to declassified information, in order to this atomic bomb explosion, China a **** spent 2.8 billion yuan.
2, the space shuttle
In 1959 the Soviet Union's unmanned spacecraft successfully landed on the moon for the first time, and took back a large number of photos. And the United States in the late 1960s Apollo moon landing feat, but the first step of mankind on the planet outside the Earth, since then, the United States in space exploration gradually left the Soviet Union behind. After the advent of the space shuttle, the chances of success of mankind's travel to outer space have greatly improved, and scientists predict that mankind will carry out travel to outer space after the year 2000 AD.
3, artificial satellites
The first artificial satellite was launched by the Soviet Union on October 4, 1957, followed by the U.S. Explorer 1 on January 31, 1958, a successful test body, and since then these satellites running with the rotation of the Earth more and more floating in the atmosphere outside. Originally used in military science and technology satellites, later slowly evolved into communication, mapping, detection, weather and other different uses of the satellite family.
4, television
In 1923, the soul of the television set - the picture tube was born. Television technology is widely used in the 1940s, 1954 is the beginning of the era of color television, after the 60s almost most countries have established television stations. This square box has created countless hours of joy for mankind.
5, the Internet
The original computer network was only in the academy research labs to connect different computer hosts, when this technology only through a simple data machine and telephone line connection, can be used for people, the network instantly became the most influential invention at the end of the century. The new modes of information dissemination created by the Internet quickly affected more and more aspects of life. Email, online shopping, online dating, etc. redefined and reshaped the Web. With a thin telephone line, people could connect the world in their hands.
Baidu Encyclopedia - Atomic Bomb
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Baidu Encyclopedia - Television
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