An apparatus for acquiring an internal-structure image of an object from a plurality of images of the object photographed by a photographing unit includes a control unit that controls the photographing unit to obtain the images under different photographing conditions; and an extracting unit that extracts a portion common to the images as the internal-structure image. Information regarding the triangle may first be received. Data to be communicated by the magnetic stripe emulator may be encoded within the one or more waveforms and communicated to a magnetic stripe reader. to form particulated biomass having a mean average particle size from about 1 \u03bcm to about 1000 \u03bcm. Cover 20 snaps onto the body 26, concealing the razor 14. The method also differences adjacently measured actual weights to obtain multiple second difference values.