Abstract: The present invention relates to a foldable gas burner, in which a distance between a combustion part of a cooking part and a gas supply part is maximized when the gas burner is used in order to improve safety, and the cooking part and the gas supply part overlap each other when the gas burner is stored in order to minimize a volume, particularly, a length of the gas burner, thereby enabling the gas burner to be easily carried, stored, and received. Meanwhile, in consideration of a problem with safety such as prevention of a gas accident, there is a need for a safety means capable of automatically cutting off a supply of gas to the cooking part with high reliability when the supply part and the extension part overlap each other.

Abstract: Disclosed are a method and apparatus for composing a plurality of images of the celestial bodies. The method and apparatus can compose a plurality of images using various pieces of information associated with the plurality of images and a time interval during the plurality of images are taken, such that objects are accurately matched with no afterimage.

Abstract: Disclosed are a method and apparatus for composing a plurality of images of the celestial bodies. The method and apparatus can compose a plurality of images using various pieces of information associated with the plurality of images and a time interval during the plurality of images are taken, such that objects are accurately matched with no afterimage.