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For Covid-like pandemic forecasts, we need an ensemble of projections

All these great discoveries happened by accident? Introduction The world of radiation and atomic power sprang from an unexpected observation of the element radium. When a footballer curves a free kick around the wall, she is using a physical force that popped into Newton's mind when observing a tennis match one day (though it was later named the Magnus effect). And phosphorous was discovered by an alchemist who thought he was distilling gold out of urine! 1 Many great scientific discoveries seem to have been stumbled over rather than carefully planned – but that's what makes top scientists ...

Biology by the numbers Before 2020, the phrase “mathematical modelling” may have made your eyes glaze over. But as COVID-19 escalated across the globe, we’ve watched mathematics combine with epidemiology to make predictions, guide government decisions, and inform the public about the state of the pandemic. In vitro tumour spheroid. (a) shows the red and green fluorescing cells relatively evenly distributed throughout the spheroid. (b) shows a mixture of red and green fluorescing cells at the surface of the spheroid, whereas in the centre of the spheroid we see predominantly red fluoresc...

‘Super quick’: Migratory fish to get some help to scale dam walls ‘Super quick’: Migratory fish to get some help to scale dam walls Save Normal text size Advertisement Fish may occasionally fly but they tend not to jump and few of them make good climbers. And that’s a problem if you’re a native Australian fish species evolved to ply the waterways of the Murray-Darling Basin and have to confront the 10,000 or more man-made obstructions from weirs to giant dam walls. The Murray cod is one Australian species, along with silver perch and Australian bass, that evolved...