Smart badespeil: utviklingen og historien til speil

Folk har vært i stand til å sortere ut selvreflekterende fra eldgamle tider. I begynnelsen ble vann brukt som enspeil. From the Yin and Shang Dynasty to the Tang, Song, Yuan, Ming and Qing Dynasties, the speil for self-reflecting evolved into a bronze speil. The earlier glass speils in China appeared in the Ming and Qing Dynasties. It was brought from Europe by missionaries who came to China. This European-style glass speil has to go through tens of thousands of miles of sea roads and bumps all the way. Taking into account the fragility, the speil surface is generally narrow and easy to carry; the speil is mostly used for shaving and shaving, and the speil surface is only enough to shadow the partial beard.Then, with the passage of time, the silver speil used by most of us came into being. With the development of technology, the function of the speil is only self-reflection, it is more intelligent and more humane. More functional, such as: anti-fog, watch time, measure temperature, watch TV, etc. The material of the speil has also been upgraded from a silver speil to an "environmental protection speil". This speil uses lead-free paint, which is a technical breakthrough of silver speils. This kind of speil is called a lead-free and copper-free speil, also known as an "environmental protection speil.