Abstract: A photographing apparatus includes an irradiation unit configured to irradiate a living body with beams of light having a plurality of wavelengths different from one another, a photographing unit configured to photograph the living body irradiated by the irradiation unit to generate image data of the living body, an image processing module configured to generate, based on the image data generated by the photographing unit, a plurality of pieces of wavelength separation image data, by separation into the plurality of wavelengths, and a control module configured to control, based on the image data and on the plurality of pieces of wavelength separation image data generated by the image processing module, irradiation light amounts of the beams of light having the plurality of wavelengths.

Abstract: A wheel for a vehicle includes a plurality of Helmholtz resonators each including an auxiliary air chamber communicating with a tire air chamber through a communication hole. The Helmholtz resonators include one or more first Helmholtz resonators set to have a silencing characteristic for a first-order resonance frequency of air column resonance noise in the tire air chamber, and one or more second Helmholtz resonators set to have a silencing characteristic for a second-order or higher-order resonance frequency of the air column resonance noise.

Abstract: A wheel for a vehicle includes a plurality of Helmholtz resonators each including an auxiliary air chamber communicating with a tire air chamber through a communication hole. The Helmholtz resonators include one or more first Helmholtz resonators set to have a silencing characteristic for a first-order resonance frequency of air column resonance noise in the tire air chamber, and one or more second Helmholtz resonators set to have a silencing characteristic for a second-order or higher-order resonance frequency of the air column resonance noise.

Abstract: This invention provides a fuel tank of a simple structure without any special device but having space of a predetermined ratio after the fuel tank has been filled with liquefied fuel. The fuel tank is of a form in which a number of cylindrical or spherical containers are arranged in parallel and are coupled together in a manner that the cylindrical or spherical containers neighboring each other share partitioning walls, respectively. Each of the partitioning walls has a passage through which the neighboring cylindrical or spherical containers are communicated with each other, and the upper ends of the passages are formed leaving partly the inner partitioning walls so that the liquid will not enter into the upper parts of the cylindrical or spherical containers.