This paper demonstrates a fiber-optic time transfer over a 6000 km noncalibrated fiber link using proposed single-fiber bidirectional-transmission unidirectional optical amplifiers (SFBT-UOAs). The ...

In a way similar to the string-to-string correction problem, we address discrete time series similarity in light of a time-series-to-time-series-correction problem for which the similarity between two ...

Biology Bogong Moths Are First Bugs Known to Use Stars for Long-Distance Travel Scientists found that an Australian moth navigates using a celestial compass, possibly guided by the Milky Way itself.

It was a bit of a stumble at first. According to the non-profit Friends of Big Bear Valley, as Gizmo was flapping her wings, her foot slipped, and she stepped off the "balcony" of the nest.

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