Core Insights - The article highlights the ancient wisdom and ingenuity of people in Shanxi, particularly in relation to winter survival techniques and astronomical observations from the Taosi site, which dates back 4,300 to 3,900 years [1] Group 1: Astronomical Observations - The Taosi site features an ancient astronomical observatory consisting of 13 observation pillars and 12 observation slits, which were used over 4,000 years ago to observe the sunrise and determine agricultural seasons [1] - The observatory's function was complemented by tools such as the gnomon and the shadow stick, which helped ensure accurate seasonal timing [3] Group 2: Winter Survival Tools - The article describes ancient cooking vessels like the Jin Hou Wen Ding, which was designed to retain heat using charcoal, resembling modern hot pots [6] - Another artifact, the Qulong-patterned square plate from the Warring States period, is believed to be a charcoal stove, showcasing the duality of aesthetic design and practical heating function [10][12]