Have you seen this moth?

Six years ago, Singapore saw an unusually large number of Lyssa zampa – big, gray, swallow-tailed moths – appearing all over the place. Starting then, and every year since, N Sivasothi from the National University of Singapore has been asking his friends and online followers to report any sightings. He is keeping tabs on how the number…

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Science of the City

Juggling roller skaters are not exactly an everyday occurance, at least not in my city. But they are excellent illustrations of relative motion, and surprisingly entertaining to watch. How do I know? Well, one of the entries in the Science of the City Video Contest features lots of roller skaters, and one of them juggles…

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