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Achieving independent multitasked wavefront control by using an ultrathin plate is a challenge to increase information capacity in integration optics and radar applications. Transmission-reflection-integrated metasurface...

Mark Z. Danielewski's ergodic novel, House of Leaves, intricately employs various narrative techniques to represent the thematic presence of absence and space in the novel. The novel navigates through layers of darkness ...

Empty space myopia is a phenomenon that has been observed in pilots when flying in the open sky. Previous research has been conducted to develop training biofeedback devices to help pilot visual accommodation in empty sk...

Regulation of any activities in space used to be object of international public law for several decades. This had reflected the fact that states as subjects of international public law used to be the key role in the deve...

Space is an area that includes land space, sea space and air space, including space within the earth as a unified territory, where humans and other creatures live, carry out activities and maintain their survival. Increa...