QINGHUA SCIENCE & EDUCATION EQUIPMENT CO.,LTD. QINGHUA ELECTRONIC INSTRUMENT CO.,LTD.
Company / News / Contact EN/CN
EN/CN
0574-65335615
About Us
Company Profile
Enterprise culture
Certificate of Honor
Products
Physiology
Biology
Specimen
Slide
Science
Microscope
Telescope
hysics
Chemistry
Geography
Mathematics
Art
News
Media coverage
Industry News
Company Dynamics
Contact Us
After-sales service
Online message
Contact Information
中文版
knowledge
Three ball instrument how to use?
The three-sphere instrument is used to teach the earth, the moon's revolution and rotation, the day and night change, the four seasons change, the cause of the eclipse of the sun and the moon, and the change of the moon's phase.
2020
08-17
What kind of scientific and educational instruments are divided?
In order to promote the development of scientific research and education, the instruments and equipment used for scientific research and teaching are called scientific and educational instruments. The instrument refers to the instrument or device used in science and technology for experiment, measurement, observation, inspection, drawing, etc.
08-12
Physical instruments: a detailed introduction of the three-ball instrument
Physical instruments: the three-ball instrument, also known as the lunar-earth operator, is a tool for the teaching and popularization of astronomy. It consists of three balls representing the sun, the earth and the moon, and has a mechanical linkage to demonstrate the relationship between the three balls, resulting in some astronomical phenomena.
08-07
Qinghua Science and Education takes the lead in undertaking another major national scientific instrument and equipment development project
The industrial online chromatograph developed by scientific instruments has advanced principles and high technical content, which can improve the online monitoring and measurement level of environmental pollution and petrochemical industry in China.
07-28
How to Forecast Haze, Qinghua Experimental Instruments to Help
With the Qinghua experimental instruments, the ground network cannot be less. In 2015, the Chinese Academy of Sciences set up a joint air quality observation network composed of 40 stations (points) across the country, and a ground monitoring network composed of 16 international standard air quality observation stations in Beijing, Tianjin and Hebei.
07-25
Shanghai Entomological Museum enters busy season from late spring to early summer
300 Fenglin Road-In the quiet yard of the Institute of Plant Physiology and Ecology, Shanghai Academy of Life Sciences, Chinese Academy of Sciences, a beautiful "flying party" is quietly brewing ". Starting this month, the 500-square-meter open-air butterfly garden of the Shanghai Entomological Museum will enter a busy season: students traveling, guests and friends of the "Science and Technology Week", and children celebrating the "June 1" International Children's Day will not miss the butterfly. The best season for "close contact. In addition, the city's first free "insect summer camp" also has plans to open this year, dozens of children of migrant workers in Xuhui District will become "lucky" ...... Such excitement will continue until the golden autumn of October. Because for most insects, 22 ℃ ~ 27 ℃ is the most suitable temperature for survival. In Shanghai, if you want to "play" with insects in nature, you have to grasp the half year from the end of April to October. No, the reporter found in the greenhouse of the insect museum a few days ago: the little guys who pupate into butterflies are getting darker and have begun to break out of the cocoon. The Shanghai Entomological Museum, formerly known as the Insect Department of the Shanghai Aurora Museum, was built in Xujiahui in 1883 and enjoyed the reputation of "the British Museum of Asia" in the last century. After upgrading and transformation, it is now the "leading figure" in the city's popular science venues. The indoor exhibition hall covers an area of 2600 square meters and has more than 100 million insect specimens from all over the country. Among them, the only insect in China that has been designated as "national first-class protection"-the coracoid butterfly, and the "goddess of light" flash butterfly with a single specimen price of 360000 yuan, are all "treasures of the town hall". The insect net room (I .e. butterfly garden) and glass greenhouse are "outdoor branches" put into use last year: late spring, early autumn and the whole summer are "good times" for butterfly garden. children can try how to catch butterflies with nets, but they must be released before leaving. the staff will "return" a butterfly specimen for you to make bookmarks, greeting cards and other souvenirs. After the weather turned cool, insects "moved" to the greenhouse, visitors can ignore the cold outside and continue to "spy" the secrets of insects in the winter. In the butterfly garden, there are also flowers and plants and small bridges and flowing water, but it is different from the general garden. It seems that there is no need to pay attention to bright colors of plants. They are determined not to "eat" pesticides, and even "weeds" are too lazy to take care. Experts from the Entomology Museum told reporters that the protagonist here is not plants, but insects. As long as plants that can provide parasites for insects, they must "indulge" its growth. For example, the kind of small flowers that will open inconspicuous pulp grass, rich in nectar, is one of the favorite butterflies.
2019
01-13
