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Vanguard

Breathing clean: The electrifying science behind N95 respirators

Prior to the eruption of Taal Volcano or the standstill brought about by the COVID-19 pandemic, most Filipinos had probably never heard of N95 respirators. Even now, six months and counting under one form of community quarantine or another, there persists the idea that N95 respirators act like a net or a colander—that they easily…

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Vanguard

Anybody out there?: SETI’s search for extraterrestrial life

“Are we alone in the Universe?” This is a question that has, for centuries, stumped mankind. Through the efforts of scientists and engineers, the search for extraterrestrial life has seen multiple developments, mainly through the advent of cutting-edge devices. These developments have also introduced new methods of detecting technologically-advanced activity, known as technosignatures, which are…