Where is a mining machine in Hankou
Edison was curious about many things since he was a child, and he liked to experiment with them himself until he understood the truth. When he grew up, he devoted himself to research and invention according to his own interests. He set up a laboratory in New Jersey and invented more than 2000 kinds of things in his life, such as electric lamp, telegraph, phonograph, video camera, magnetic separator, crusher and so on. Edison's strong research spirit made him make great contribution to the improvement of human life style
"waste, the biggest waste is to waste time." Edison often said to his assistant“ Life is too short. Think more and do more with less time. "
one day, Edison was working in the laboratory. He handed his assistant an empty glass bulb without a light port and said, "you measure the capacity of the bulb." He bowed his head to work again
after a long time, he asked, "what's the capacity?" He didn't hear the answer. He turned his head and saw his assistant measuring the perimeter and inclination of the bulb with a tape measure. He took the measured number and put it on the table to calculate. He said, "time, time, how do you spend so much time?" Edison came over, picked up the empty light bulb, filled it with water, handed it to his assistant, and said, "pour the water in the measuring glass, and tell me its capacity right away."
the assistant immediately read out the number
Edison said, "what an easy way to measure. It's accurate and time-saving. Why can't you think of it? Is it not a waste of time? "
the assistant blushed
Edison murmured: "life is too short, too short. Save time and do more things!"< Before he became famous, Edison was a poor worker. Once, his old friend met him in the street and said with concern, "look, this overcoat on you is not in good condition. You should replace it with a new one."
"do you need it? No one knows me in New York Edison answered with indifference
a few years later, Eddie has become a great inventor< One day, Edison met his friend on the street of New York“ "Oh," exclaimed the friend, "Why are you still wearing this old coat? This time, you need a new one anyway
"do you need it? Everyone here already knows me. " Edison still answered with indifference
when Lu Xun was 12 years old and studying in a private school in Sanwei bookstore in Shaoxing City, his father was seriously ill and his two younger brothers were young. Lu Xun not only often went to pawnshops and drugstores, but also had to help his mother with housework. One day, Lu Xun helped his mother to do more at home. As a result, he was late for school. Teacher Shou Jingwu severely scolded Lu Xun. After being disciplined, Lu Xun did not complain about his teachers and family because he was wronged. Instead, he sincerely accepted the criticism, determined to make a precise schele, and would never be late for housework again. So he carved a word "Zao" in the lower right corner of his desk with a knife to remind and urge him to cherish his time and study angrily.
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There are
mineral resources in Wuhan:
Wuhan has discovered 33 kinds of minerals, 154 mineral occurrences, with a potential economic value of more than 840 billion yuan, among which the reserves of metallurgical auxiliary materials and building materials are the largest, with the largest flux limestone, dolomite, quartz sandstone base in China, and the reserves of bentonite ore are more than 118 million tons, ranking the first in China
8 high-quality mineral water and hot springs were found. In addition, there are 11 cash mines, 9 copper mines, 2 manganese mines and 2 phosphate mines, and 5 oil and gas "oil and gas shows"
the characteristics of mineral resources in Wuhan are as follows:
1. The distribution of main minerals is relatively concentrated, and the regional characteristics are obvious
the southern part of Wuhan metropolitan development area is a mineral resource concentration area, with sandstone for building stone, limestone for building stone, limestone for cement, limestone for ash making, sandstone for glass, limestone for flux, dolomite for metallurgy Quartz sandstone for metallurgy is mainly proced in Jiangxia District and Caidian District, among which Caidian District is mainly characterized by sandstone for building stone and sandstone for glass
The main characteristics of Jiangxia District are limestone for flux and dolomite for metallurgy, and coal mines are exposed The main mineral resources in Wuhan are mostly non-metallic minerals which are easy to be mined in the open pit, and the subsequent processing and utilization are simple and easy. For example, sandstone for glass, limestone for flux, dolomite for metallurgy, quartz sandstone for metallurgy and other minerals have high content of useful components and good and stable ore quality, Generally, complex mineral processing is not required