For more than a century, astronomers at the Kodaikanal Solar Observatory have been quietly recording the Sun's changing face. That uninterrupted record, one of the oldest continuous solar datasets in ...

Abstract: This paper proposes a novel pattern-reconfigurable fluid reconfigurable intelligent surface (FRIS) framework, where each fluid element can dynamically adjust its radiation pattern based on ...

When we look at the grand timeline of human civilization, we naturally prefer to view global progress as a straight, forward-moving line of constant intellectual and social advancement. We assume that ...