checkpoint

.gitignore

@@ -1,2 +1 @@
 public/
-images/

config.toml

@@ -16,6 +16,8 @@ taxonomies = [
 ]
 
 theme = "apollo"
+mathjax = true
+mathjax_dollar_inline_enable = true
 
 [markdown]
 # Whether to do syntax highlighting

content/sundries/a-very-digital-artifact/index.md

@@ -1,7 +1,7 @@
 +++
-title = "A Very Digital Artifact"
-slug = "a-very-digital-artifact"
-date = "2022-11-11"
+title = "A Thoroughly Digital Artifact"
+slug = "a-thoroughly-digital-artifact"
+date = "2023-01-11"
 [taxonomies]
 tags = ["3dprinting", "CAD", "GIS", "CNC", "art", "sundries", "proclamation"]
 +++
@@ -133,13 +133,13 @@ second](https://gisgeography.com/srtm-shuttle-radar-topography-mission/) (which
 "GL**1**"), or roughly 30x30 meters, and the height data is accurate to within 16 meters. Not too
 shabby!
 
-The only problem was that you could only download data covering up to 450 square kilometers at a
+The only problem was that you could only download data covering up to 450,000 square kilometers at a
 time, so I had had to download three or four separate
 [GeoTIFF](https://en.wikipedia.org/wiki/GeoTIFF) files and then mosaic them together. A GeoTIFF file
 is basically an image where each pixel represents one data point (so, a 30x30 square meter plot)
 centered at a particular location on the Earth's surface. It's a monochrome image, where height is
-mapped to brightness, so the lowest spot is `0` (black), and the highest spot is `65535` (brightest
-white), since each pixel is a 16-bit integer.
+mapped to brightness, so the lowest spot's value is `0` (black), and the highest spot is
+`65535`[^16-bit-ints] (brightest white). These files are not small
 
 ## Thanks, California state!
 
@@ -157,7 +157,7 @@ https://data.ca.gov/dataset/ca-geographic-boundaries
 
 [main_image]: PXL_20220723_214758454.jpg "A plywood slab carved with CNC into a topographic representation of California"
 
-[programmers_creed]: programmers_creed.jpg "jfk overlaid with the programmer's creed: we do these things not because they are easy, but because we thought they were going to be easy"
+[programmers_creed]: /images/programmers_creed.jpg "jfk overlaid with the programmer's creed: we do these things not because they are easy, but because we thought they were going to be easy"
 
 [meshy-cube]: meshy-cube.png "an overly-complicated mesh of a cube"
 
@@ -173,4 +173,7 @@ deck](https://pages.mtu.edu/~shene/COURSES/cs3621/SLIDES/Mesh.pdf) for a pretty
 "mesh basics" (but not really that basic, that's just academics trolling us, don't let it bother
 you). If I'm wrong about a 2D sheet with a hole being possibly manifold, I invite correction!
 
-[^chekhovs-ram]: A classic use of Chekhov's Scarce Computational Resource.
+[^chekhovs-ram]: A classic example of Chekhov's Scarce Computational Resource.
+
+[^16-bit-ints]: Each pixel is 16 bits, so the possible values are from 0 to 2^16 - 1. 2^16 is 65536,
+so there you go.