Si Collection, Middle Volume Radical: Fire (huǒ) 燧 Kangxi strokes: 17 Page 684, Entry 31 Ancient records: Guangyun (Guangyun), Jiyun (Jiyun), Yunhui (Yunhui), Zhengyun (Zhengyun). Pronounced sui (falling tone), reading is the same as sui. Yupian (Yupian): A tool used to obtain fire from the sun. Book of Rites (Liji), Inner Rules: Wear a metal fire-starter on the left, wear a wooden fire-starter on the right. Commentary: The metal fire-starter is a tool to obtain fire from the sun. The wooden fire-starter is a tool to obtain fire by drilling wood. Zuo Tradition (Zuozhuan), Duke Wen, Year 10: Ordered to harness the carriage in the early morning to load the fire-starting equipment. Also, Duke Ding, Year 2: Zhen Yin Gu was in the same boat as the King of Chu; the King of Chu had him hold a lit torch, tie it to an elephant's tail, and drive the herd of elephants toward the army of the State of Wu. Commentary: Light a torch and tie it to the tail of an elephant. Also, Rites of Zhou (Zhouli), Winter Officers, Artificers' Record: There are six ratios for metal alloys, among which copper and tin each account for one half, which is the alloy ratio for making mirrors and fire-starters. Commentary: Mirrors and fire-starters are tools for obtaining water and fire from the sun and moon. Also, Records of the Grand Historian (Shiji), Annals of the Three Sovereigns: Since the Human Sovereign, there have been the Five Dragon Clans. The Fire-Driller (Suirenshi). Also written as sui. Rites of Zhou (Zhouli), Autumn Officers, Ministry of Illumination: In charge of using the fu-sui to obtain bright fire from the sun. Commentary: The fu-sui is the solar fire-starter. Sub-commentary: Obtaining fire from the sun is why it is called the solar fire-starter, just as obtaining fire from wood is called the wooden fire-starter. Also, Records of the Grand Historian (Shiji), Biography of Han Anguo: Attacking beacon towers; detailed explanations can be found in the commentary on the character for beacon. Yupian (Yupian): The same as the character for fire-starter. Also written as sui. Textual research: Rites of Zhou (Zhouli), Winter Officers, Artificers' Record, The Carriage-Pole Maker: Copper and tin each account for one half, which is the alloy ratio for mirrors and fire-starters. Note: The cited content refers to metalworking and is unrelated to the Carriage-Pole Maker. Following the original text, the Carriage-Pole Maker has been changed to Metal has six ratios. Records of the Grand Historian (Shiji), Annals of the Three Sovereigns: Since the Human King, there have been the Five Dragon Clans. The Fire-Driller (Suirenshi). Following the original text, Human King has been changed to Human Sovereign.