We see wine tears and this is due to Marongoni effect.

• Fig 1: Wine tears.
• Fig 2: The reason of wine tears.
• Fig 3: Surface tension changes and flow motion.
• Fig 4: Marangoni effect seen in the blood.
• Fig 5: Marangoni effect visualization.
• Fig 6: The drying process of blood can be used for detecting diseases.

What is Science on Tap?

An online symposium to share popular science with the broader range other than existing researchers. They were held weekly during 2021, and provided multiple topics from social science, biology, mechanical engineering, etc, mainly in Chinese. Xinyi serves as an active speaker, and she usually uses multiple sources to explain the topic. No recordings are available. These figures were used only for educational purposes.