Inside 245-5D

Existential Pontification and Generalized Abstract Digressions

June, 2010

AP Physics: Stuck in the concrete

Attention conservation notice. The author reminisces about learning physics in high school, and claims that all too often, teaching was focused too much on concrete formulas, and not the unifying theory around them. In elementary school, you may have learned D=RT (pronounced "dirt"), that is, distance is rate multiplied with time. This was mostly lies, […]

  • June 7, 2010

Databases are categories

Update. The video of the talk can be found here: Galois Tech Talks on Vimeo: Categories are Databases. On Thursday Dr. David Spivak presented Categories are Databases as a Galois tech talk. His slides are here, and are dramatically more accessible than the paper Simplicial databases. Here is a short attempt to introduce this idea […]

  • June 4, 2010

Bug boogie: Git and symlinks

Git is very careful about your files: unless you tell it to be explicitly destructive, it will refuse to write over files that it doesn't know about, instead giving an error like: Untracked working tree file 'foobar' would be overwritten by merge. In my work with Wizard, I frequently need to perform merges on working […]

  • June 2, 2010