1. Freshness and sense of the times: select current hot or cutting-edge scientific topics, such as artificial intelligence (AI), machine learning, quantum computing, new progress in biotechnology (such as CRISPR-Cas9 gene editing technology), new energy technology, aerospace technology (such as Mars exploration and manned space flight), and 5G/6G communication technology.
2. Relevance between practicality and life: Choose popular science content closely related to daily life, such as food safety, health and wellness, disease prevention and control (such as novel coronavirus protection knowledge), environmental protection action (garbage sorting, energy saving and emission reduction), disaster prevention (earthquake safety, fire safety), digital life (digital currency, blockchain technology), etc.
3. Interesting and interactive: tell interesting and easy-to-understand scientific phenomena or principles, such as optical magic, wonders of chemical reactions, wonderful phenomena in the animal and plant world, etc. through experimental demonstrations, animated videos and physical models.