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… Continue reading »
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Singapore on the Hillside
We all know gravity is pulling us down towards the Earth. We usually assume that this means towards the centre of the planet, but that’s actually not the case. It would be the case if the Earth was a perfect sphere with uniform density, but our planet is a lot more interesting than that. Earth… Continue reading »