John Baez, physicist, writes on ecology and mathematical physics.
Azimuth's Latest Posts
100,000 years ago, some of my ancestors came out of Africa and arrived in the Middle East. 50,000 years ago, some of them reached Asia. But between those dates, two stars passed through the outer reaches of the Solar System, where icy comets float in dark space! One is a tiny red dwarf called Scholz’s […]
This summer there will be a conference on higher-dimensional algebra and rewrite rules in Warsaw. They want people to submit papers! I’ll give a talk about presentations of symmetric monoidal categories that arise in electrical engineering and control theory. This is part of the network theory program, which we talk about so often here on […]
Can red dwarf stars have Earth-like planets with life? This is an important question, at least in the long run, because 80% of the stars in the Milky Way are red dwarfs, even though none are visible to the naked eye. 20 of the 30 nearest stars are red dwarfs! It would be nice […]
post by Nadja Kutz This blog article is about the temperature data used in the reports of the Intergovernmental panel on Climate Change (IPCC). I present the results of an investigation into the completeness of global land surface temperature records. There are noticeable gaps in the data records, but I leave discussion about the implications […]
post by David Tanzer Here are some notes from the back offices of the Azimuth project. After a long and productive stay as the Azimuth tech guy, Andrew Stacey is moving along and passing the baton to me. As part of this change, we’ve relocated the servers to a new Azimuth hosted account, and updated […]
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