Sirens are mechanical, motorized warning systems that warn of disasters such as war, fire or storms in various forms around the world. The intensity of the slowly rising tone is a well-known warning signal. Two parts rotating into one another produce the sound through air sections, which varies in pitch and volume depending on the speed (and design). The faster it spins, the higher and louder the sound becomes. The siren is made of molten glass and no longer warns of danger, but only protects itself. It has become a shy object. Equipped with a distance measuring sensor, it reacts in panic when people approach. The closer you get to her, the higher and shakier she becomes.