Abstract: A magnesium refining apparatus includes: a container that contains sample containing a magnesium compound; and a light concentrating device that concentrates sunlight to irradiate the container in order to heat an interior of the container to a predetermined temperature, wherein: the container comprises a reaction unit that is heated to the predetermined temperature by the light concentrating device to generate magnesium vapor from the sample with a thermal reduction reaction, and a condenser unit that condenses the magnesium vapor; a sunlight transmitting member is provided on a housing surface of the container, and transmits the sunlight concentrated by the light concentrating device; the reaction unit is held in the container and the sample are conveyed into the reaction unit.

Abstract: A magnesium refining apparatus includes: a container that contains sample containing a magnesium compound; and a light concentrating device that concentrates sunlight to irradiate the container in order to heat an interior of the container to a predetermined temperature, wherein: the container has a reaction unit that is heated to the predetermined temperature by the light concentrating device to generate magnesium vapor from the sample with a thermal reduction reaction; and the light concentrating device is constructed of Cassegrain optical system having a first mirror surface constituted by a concave mirror and a second mirror surface constituted by a convex mirror, and concentrates reflected light of the sunlight on a surface of the sample in the container by guiding the sunlight reflected at the first mirror surface to the second mirror surface and then by reflecting the reflected sunlight guided from the first mirror surface at the second mirror surface.

Abstract: A server apparatus includes: a communication unit that communicates with a user terminal and a manufacturer terminal; an additional information communication unit that transmits, when the communication unit receives additional function information indicating a function to be added to a basic device from the user terminal, the additional function information to the manufacturer terminal through the communication unit; a specification information communication unit that transmits, when the communication unit receives specification information indicating a specification of an additional device for realizing the function from the manufacturer terminal, the specification information to the user terminal through the communication unit; and a specification determination unit that determines, when the communication unit receives, from the user terminal, selection information indicating one specification selected from among specifications indicated by the specification information transmitted to the user terminal, the