James Yorke: fifty years of chaos (theory)
Almost fifty years ago, when my student T. Y. Li and I wrote a math paper titled “Period 3 Implies Chaos”, I could not predict… Read More »James Yorke: fifty years of chaos (theory)
science
Design matters (22): Phases of the moon
“Every day, the moon rises fifty minutes than the day before.” I found this video really helpful for visualising the details of how moon-phases work.… Read More »Design matters (22): Phases of the moon
At the Mountains of Madness: Edwardian* Science; Lovecraftian Cosmology
The most merciful thing in the world, I think, is the inability of the human mind to correlate all its contents. We live on a… Read More »At the Mountains of Madness: Edwardian* Science; Lovecraftian Cosmology
Technology (26): Vaclav Smil on available energy per capita since 1800
… the 20th century saw a nearly 40-fold gain in useful energy [i.e. energy available for human use]; since 1800 the gain was about 3,500-fold.… Read More »Technology (26): Vaclav Smil on available energy per capita since 1800
Richard Feynman: “Fiddling around is the answer”
Via Eric Gilliam‘s excellent FreakTakes. I got to Princeton, and the first thing, when I was there and I went to the physics building, I… Read More »Richard Feynman: “Fiddling around is the answer”
Richard Feynman on probability fluctuations
The Feynman Lectures on Physics are available online courtesy of Caltech. Here’s an elegant description of probability in the real world: See also: Who Says?Decisions… Read More »Richard Feynman on probability fluctuations
Fish Forks: behavioural individuality among genetically identical fish…
… and the impossibility of equality. This is an interesting little study on the origins of individuality, diversity, and inequality (in fish). Recommended. Behavioral individuality… Read More »Fish Forks: behavioural individuality among genetically identical fish…
Why isn’t the mule regarded as a species?
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A… Read More »Why isn’t the mule regarded as a species?
The Map Is Not The Territory
Today’s helpful reminder comes via this week’s The Whippet (highly recommended): The Limits of Scale “And then came the grandest idea of all ! We… Read More »The Map Is Not The Territory
Reading list – Scott Cunningham’s Causal Inference: The Mixtape
A friend shared this fantastic resource about [statistical] Causal Inference, about which I know very little. This book (and website) looks like a great place… Read More »Reading list – Scott Cunningham’s Causal Inference: The Mixtape
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