You don't have a strong body, but you have propped up a rainy sky for us; You don't have the hand of an architect, but you have laid a solid foundation for us; You have no vision of an artist, but you have built magnificent buildings for us. Your profound knowledge makes us feel civilization and hope; Your lofty mind, let us know tolerance and tolerance; Your noble personality deeply affects our hearts.
Thank you, teacher. We sincerely thank you! You are like a silent candle, burning yourself but illuminating others. With your bright guidance, we won't lose our way in the dark. Dancing in front of you. Instill the principle of being a man into our hearts.
Expand one's knowledge
Candle is a daily lighting tool, mainly made of paraffin. In ancient times, it was usually made of animal fat. It can burn and glow. In addition, candles are widely used: they are also very important in birthday parties, religious festivals, collective mourning, weddings, funerals and other activities. In literary and artistic works, candles are symbolic of sacrifice and dedication.
Easy to melt, less dense than water, insoluble in water. When heated, it melts into liquid, colorless and transparent, slightly volatile when heated, and can smell the unique smell of paraffin. Solidified into a white solid when it is cold, with a slight special smell.
In modern times, it is generally believed that candles originated from torches in primitive times. Primitive people painted things like fat or wax on bark or sawdust, and then tied them together to make torches for lighting. There is also a legend that in the pre-Qin and ancient times, someone tied mugwort and reed into a bundle, then dipped it in some oil and lit it for lighting. Later, someone wrapped a hollow reed with cloth, filled it with beeswax and lit it.
Special candle
After special treatment, some emergency boxes have emergency lights, but most Japanese emergency boxes have candles. This is because the specially treated candles are not afraid of the influence of humidity and have reliable quality. In addition to lighting, they can also be used as kindling to judge oxygen content. This specially treated candle can burn continuously for about 4 hours, which is longer than the lighting time provided by most emergency lights.