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What are the winning works of the National Youth Science and Technology Innovation Competition?

The physics prizes are: 1, electronic killing device for farmed livestock.

2. Sliding bar with adjustable seat inclination.

3. Solar energy device with water-saving function.

4. Improvement scheme of crosswalk line.

The National Youth Science and Technology Innovation Competition is a comprehensive science and technology competition with a history of 30 years. It is one of the demonstrative and instructive science and technology education activities for primary and secondary school students, and it is a concentrated display form of outstanding achievements of various science and technology activities in primary and secondary schools in China.

The Youth Science and Technology Innovation Competition is a demonstration, guidance and mass activity.

The purpose of this activity is to make teenagers deeply understand the relationship between science, technology and society, stimulate their interest in science and cultivate their sense of responsibility to society. By learning knowledge, mastering skills and participating in activities, teenagers can initially understand scientific methodology, improve their observation ability, thinking ability, creative ability and practical ability, and then promote their overall scientific quality.

According to the unified deployment of China Association for Science and Technology, since 2002, the National Youth Science and Technology Innovation Competition held in odd years and the National Youth Biological and Environmental Science Practice Activities held in odd years have been integrated into a biennial event, and the number of sessions has been merged.

The comprehensive youth science and technology innovation competition includes four parts: invention competition, scientific discussion, scientific fantasy art exhibition and innovative scheme design and display.