An antifungal polypeptide, AlyAFP, that controls fungal damage to plants is provided. The bridging member is a member shaped like a thin flat plate having a flexural elasticity and stably supports a baby’s buttocks while dispersing a body pressure with its entire surface. To increase the level of safety of operation, this incinerator is remotely controlled, has a sequence of ignition and has overpressure apertures over the primary chamber. A method will also increase the surface smoothness of a turned surface, comprising the step of controlling the vibrations of the tool holder during turning.