Cause and Process in Evolution

“Most scientific explanations are causal. This is also the case in evolutionary biology, where the primary goals are to explain the diversity of life and the adaptive fit between organisms and their surroundings. Yet, the nature of causation[…]

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Vienna by Night

Last night I took advantage of a temporary break in the extreme cold weather we’re experiencing this month, and went for a walk along the Ringstrasse in Vienna to take some shots of the various beautiful buildings located[…]

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Castles, Canyons, and Caves

The historic city of Graz, in south-eastern Austria, was designated a UNESCO world cultural heritage site in 1999 for having “the best preserved city center of Central Europe”. It combines renaissance, gothic, baroque, and also modern architecture, and[…]

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Spontaneous Spirals

Spirals are common in nature. We’ve all admired the beautiful spirals that occur on sea shells, we can find spirals in plants, and even in the arms of galaxies or weather patterns. There are also situations in which[…]

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The Mathematics of Kindness

Charles Darwin’s theory of evolution by natural selection is one of the most profound scientific theories to have ever been developed. However, there were several questions about evolution that Darwin himself could not answer. Not that he wasn’t[…]

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Autocatalytic Sets Arising

I’ve made a short movie showing autocatalytic sets arising in a dynamical simulation of a simple polymer model. It shows how autocatalytic subsets appear, one after another, and then grow in concentration. This provides a nice visual and[…]

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Life: It’s Chemistry!

What is life? This question is still much debated in science. After the discovery of the structure of DNA by Watson and Crick in 1953, and the more recent advances in DNA sequencing technology, living organisms have become[…]

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Sunset in Santiago

I’m in Santiago, Chile, for two weeks to provide some computing support for a colleague. Unfortunately this city is often covered in a blanket of smog (especially during the summer). As a consequence the Andes mountains, which are[…]

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