A company called Reflect Orbital wants to illuminate the Earth after sunset with orbital sky mirrors, raising alarm bells.

A new framework for understanding the nonmonotonic temperature dependence and sign reversal of the chirality-related ...

In this experiment I show you to perform quantum tunneling. I first explain what quantum tunneling actually is, then I show you how to make it happen. I talk about total internal reflection and how ...

Advanced alien civilizations might not be whispering across the cosmos with radio waves at all, but instead flickering like ...

Abstract: Positioning in indoor environments, where it is difficult to achieve an accurate performance using GPS or satellites, has been studied in various ways using several wireless communication ...

According to his calculation, Santa would make 2,708 visits per second to reach 234 million households in 24 hours to deliver presents. In his book, Tolan has referenced several instances from the ...

Australians will light candles on Sunday to mark the attack on a Jewish festival that killed 15 people. A national Day of Reflection has been declared. Australians will light candles on Sunday to mark ...

SYDNEY, Australia — Australians lit candles at 6:47 p.m. on Sunday (9:47 a.m. Israel time) to collectively commemorate the moment the first shots rang out a week earlier at Sydney’s Bondi Beach in an ...

Sydney's grieving Jewish community has gathered at Bondi Beach and held a minute's silence for those killed. The prime minister was booed and Jewish community leaders backed calls for a royal ...