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Modeling What Happens to Frozen Rotating Lasagna

Things take a turn in this roundabout technical study of lasagna: “Multiphysics modeling of microwave heating of a frozen heterogeneous meal rotating on a turntable,” Krishnamoorthy Pitchai, Jiajia Chen, Sohan Birla, David Jones, Ric Gonzalez, and Jeyamkondan Subbiah, Journal of Food Science, vol. 80, no. 12, 2015, pp. E2803-E2814. (Thanks to Mason Porter for bringing […]

Modelling heat loss from a semi-spherical cow udder

Theoretical physicists are sometimes accused of making over-simplifications for mathematical models. This has lead to many variations on the spherical cow story, where a physicist claims to be able to cure a sick cow, but only if it is a spherical cow in a vacuum. Oddly, most iterations of this tale ignore heat radiated from […]

Anything goes with Ecological Niche Modelling? Even Sasquatch?

Authors J. D. Lozier, P. Aniello and M. J. Hickerson remind us, in a 2009 editorial for the Journal of Biogeography that : “[…] very sensible-looking, well-performing (based on AUC and threshold tests) ENMs [Ecological Niche Models] can be constructed from questionable observation data.“ They demonstrate by building an Ecological Niche Model to predict the […]

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