稍後觀看添加 05:45 人類與病毒 Learning from smallpox: How to eradicate a disease – Julie Garon and Walter A. Orenstein
稍後觀看添加 05:30 說太空 Light seconds, light years, light centuries: How to measure extreme distances – Yuan-Sen Ting
稍後觀看添加 05:02 驚奇動物 Meet the bluefin tuna, the toughest fish in the sea – Grantly Galland and Raiana McKinney