The starting block was a kind of equipment used in track and field competitions, mainly for sprinting events. By using the principle of force interaction, it provided the athlete with a starting point. When an athlete stepped on the starting block, the starting block would give them a force, and then the reaction force would be transmitted to the athlete's feet, helping them start. In addition, the modern starting block also had the function of judging whether the athlete had made a false start. Once the athlete made a false start, the result would be judged as invalid. The method of using the starting block was to install the front starting block at a place about one foot to one and a half feet away from the starting point, and the rear starting block was installed at a place about one and a half feet to two feet away from the front starting block. The distance between the two starting blocks was about 10-20cm. The angle of the starting blocks also had certain requirements. The angle of view between the front starting block and the road was 45 to 50 degrees, and the angle of view between the rear starting block and the road was 75 to 80 degrees. According to the height and leg strength of the players, the installation position and spacing of the starting blocks would also be adjusted. In short, the starting block was an important piece of equipment to help athletes start and ensure the fairness of the race.
The 10-yuan blocks were the big block, the small block, and the themed block. Among them, the Brook large block was suitable for younger children. The price was relatively low, and it was one of the choices for entry-level blocks. Other specific styles and content information were not in the search results provided.
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Here are some recommendations for books with color:
1. " Dream of the Red Chamber "-Cao Xueqin: This is a classic work of ancient Chinese novels. The " red " in the title represents strong emotions and illusory dreams.
2. Green Book-This was a novel about the Southern United States during the period of racial isolation. The " green " in the title represented hope and freedom.
3. The Pink Girl-This was a novel that described gender prejudices and women's self-identity. The "pink" in the title represented the gentleness and warmth of women.
4. Dark Matter Trilogy-This was a science fiction novel, and the " darkness " in the title represented the unknown and mystery.
5. " Galaxy Empire Series "-This is a science fiction novel. The " galaxy " in the title represents a vast space and an unknown world.
I hope these recommendations can meet your needs.
The following are the recommendations of the 40 books with colors: 1. Dream of the Red Chamber-Dream of the Red Chamber is a classic of ancient Chinese novels. The "red" in the title represents strong emotions and illusory dreams. 2. Green Book-The Green Book was a novel about the Southern United States during the period of racial isolation. The " green " in the title represented hope and freedom. 3. Rainbow Flowers-The title of this book has the word "rainbow" in it. Rainbow symbolizes color and beauty. 4. The Secret Life of Color-The title of this book has "color" in it, which may be related to the importance and influence of color in life. 5. Wen Ruyan: The title of this book does not have a clear color. It may be based on the theme of " One Grade in Ten Years ". 6." Evil in the boudoir "-There is no clear color in the title of this book. It may be based on the theme of " evil in the boudoir ". 7. Phoenix Seizing Platform-There was no clear color in the title of this book, so it might be based on the theme of "Phoenix Seizing Platform". 8. This Life Is Like Rain-There is no clear color in the title of this book. It may be based on the theme of "This Life Is Like Rain". 9. Grave of the Heart-There is no clear color in the title of this book. It may be based on the theme of "Grave of the Heart". 10. Can't Hide-The title of this book doesn't have a clear color. It may be based on the theme of "Can't Hide". 11. The Miao Family Girls Getting Out of Trouble-The title of this book did not have a clear color, so it might be based on the theme of "The Miao Family Girls Getting Out of Trouble". 12. Resurrection-The title of this book does not have a clear color. It may be based on the theme of "Resurrection". 13. The Moon and Sixpence-The title of this book does not have a specific color, probably based on the theme of "The Moon and Sixpence". 14. Hamlet-There is no clear color in the title of this book, probably with "Hamlet" as the theme. 15. One Hundred Years of Solitude-There is no clear color in the title of this book. It may be based on the theme of "One Hundred Years of Solitude". 16. Alive-The title of this book does not have a clear color, probably with "alive" as the theme. 17. The Ordinary World-The title of this book does not have a clear color. It may be based on the theme of "The Ordinary World". 18. Walden Lake-The title of this book does not have a clear color, probably with "Walden Lake" as the theme. 19. Outsiders-There is no clear color in the title of this book, probably with "Outsiders" as the theme. 20. Don Quijote-There is no clear color in the title of this book, probably with "Don Quijote" as the theme. 21. A brief history of mankind-There is no clear color in the title of this book. It may be based on the theme of "A brief history of mankind". 22. The Book of Songs-There was no clear color in the title of this book, so it was probably based on the Book of Songs. These books cover different topics and styles. I hope you can find one that you like.
The following are some of the recommended books in color: Dream of the Red Chamber, Green Book, Blue Danube, Anne of Green Gables, Black Cat and White Cat, Violet Eternal Garden, Treasure Island, etc. These books had color elements in their titles or storylines, using different colors to represent emotions, theme, or background. These books covered different literary types and topics, including Chinese classics, novels from the American Southern racial isolation period, love stories, adventure novels, and so on. These books could provide readers with a rich and colorful reading experience.
The following are the recommendations of the 40 books with colors: 1. Dream of the Red Chamber-Dream of the Red Chamber is a classic of ancient Chinese novels. The "red" in the title represents strong emotions and illusory dreams. 2. Green Book-The Green Book was a novel about the Southern United States during the period of racial isolation. The " green " in the title represented hope and freedom. 3. Rainbow Flowers-The title of this book has the word "rainbow" in it. Rainbow symbolizes color and beauty. 4. The Secret Life of Color-The title of this book has "color" in it, which may be related to the importance and influence of color in life. 5. Wen Ruyan: The title of this book does not have a clear color. It may be based on the theme of " One Grade in Ten Years ". 6." Evil in the boudoir "-There is no clear color in the title of this book. It may be based on the theme of " evil in the boudoir ". 7. Phoenix Seizing Platform-There was no clear color in the title of this book, so it might be based on the theme of "Phoenix Seizing Platform". 8. This Life Is Like Rain-There is no clear color in the title of this book. It may be based on the theme of "This Life Is Like Rain".