What was Stanley Miller’s experience? What corresponded to the “lightning bolts” in this experience?

In 1953 S. Miller created an experimental setup in which the conditions of the primary Earth were simulated and molecules of biologically important organic compounds were obtained by abiogenic synthesis. “Lightning” in this experiment was simulated by high-voltage electrical discharges.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.