Entrance Examination to 4D World
If one day 3D humans had to pass a unified examination to obtain residency in the fourth-dimensional world, would you be able to succeed?
As the annual college entrance examination in China arrives once again, I have created an online Comprehensive Fourth-Dimensional Test (for entertainment purposes only), formatted in a style similar to an actual Chinese exam paper. Some questions are easy, while others are quite challenging. After submitting your answers, you can view detailed solutions. If you disagree with any answers, feel free to join the discussion. The exam mainly covers:
- 4D geometry and spatial visualization
- Topology and algebraic systems related to 4D
- General knowledge about the 4D world introduced on this website
- Physics of the 4D world, and more
After finishing the exam, don’t forget to share your score and see who has the best chance of obtaining a 4D world residency permit.
Finally, best wishes to everyone taking the college entrance examination this year—may you all be admitted to your dream schools!
// Note: The online examination interface was generated with the assistance of ChatGPT AI. All questions and question bank content were written in Chinese by Hqak, translated in English by AI.