从无交集，他们为何送别杨振宁

Core Points - The article discusses the memorial service for Yang Zhenning, a Nobel Prize-winning physicist and a prominent figure in Chinese science, who passed away at the age of 103 [2][3][24] - The public response to his passing reflects a deep respect for his contributions to science and his patriotism, with many individuals traveling from various locations to pay their respects [6][36][38] Group 1 - Yang Zhenning's memorial service took place at Babaoshan Revolutionary Cemetery, attended by a large crowd dressed in mourning attire, symbolizing collective grief [3][4][6] - The service was marked by personal tributes, with attendees leaving flowers and notes expressing their admiration and gratitude for Yang's impact on their lives [10][14][19] - Many attendees, including students and professionals, shared how Yang's work and philosophy inspired them, highlighting his role as a mentor and guiding figure in their academic and personal journeys [14][18][25] Group 2 - The establishment of a memorial room at Tsinghua University’s Institute for Advanced Study allowed the public to express their condolences, with reports of around 3,000 visitors daily [6][36] - The article emphasizes the importance of honoring scientists like Yang Zhenning, who have made significant contributions to both science and national pride, fostering a culture of respect for scientific achievement [32][38] - Personal stories from attendees illustrate the profound emotional connection many felt towards Yang, showcasing how his legacy continues to inspire future generations [19][37]