對於生活在地球上的一切生物來說，太陽無疑是對地球生物影響最大的能量源頭，隨著地球的自轉和公轉，地球產生了四季和晝夜，地球上的所有生物感知到的太陽能量也隨之變化，本網頁旨在直觀展示隨著地球的自轉和公轉，產生晝夜變換和四季推移，我們接受到的太陽的能量狀態是如何变化的；同時展示了用於描述這一能量變化的中國古代曆法中二十四節氣、十二地支時辰、十二地支紀月的含義；以及中國古代陰陽哲學中的一幅重要圖形——太極兩儀圖，是如何產生的。您可以按住鼠標左鍵旋轉鏡頭視角、按住鼠標右鍵移動鏡頭視角、滑動鼠標滾輪縮放鏡頭視距，以及點擊屏幕左上角視角切換按鈕快速切換鏡頭視角，並且可以將鼠標移到相應的名詞立體字上查看相關介紹。
For all life on Earth, the sun is undoubtedly the most influential energy source. With the Earth's rotation and revolution, seasons and day-night cycles occur, and the solar energy perceived by all living beings changes. This webpage aims to visually demonstrate how the state of solar energy we receive changes with the Earth's rotation and revolution, leading to the alternation of day and night and the progression of seasons. It also explains the meanings of the 24 Solar Terms, the 12 Earthly Branches for timekeeping, and the 12 Earthly Branches for months in the ancient Chinese calendar, which describe this energy variation. Furthermore, it shows how an important diagram in ancient Chinese Yin-Yang philosophy – the Taijitu (Tai Chi diagram) – is generated. You can rotate the camera view by holding the left mouse button, pan the camera view by holding the right mouse button, zoom by scrolling the mouse wheel, and quickly switch camera views by clicking the view toggle button in the upper-left corner. You can also hover over the corresponding 3D text of terms to see their introductions.