start work on fantasy telescope

blogs/2022/12/15/stable-diffusion.md

@@ -34,7 +34,7 @@ On Windows, you will need to go to NVIDIA's site to download the correct version
 At time of writing, the SD 2 script expects CUDA 11.7, and will not work if you install the latest 12.0 version.
 To get older versions, go to their [download archive](https://developer.nvidia.com/cuda-toolkit-archive) and select the appropriate one.
 
-## Set up a virtual environment an PyTorch
+## Set up a virtual environment and PyTorch
 
 Python can be installed at a system level, but it's usually a good idea to set up a virtual environment for your project.
 This isolates the project dependencies from the wider system, and makes your setup reproducible.

fantasy-telescope-1.md

@@ -0,0 +1,26 @@
+# Building a fantasy space telescope
+
+TODO: link rti1w
+
+Space-based telescopes are particularly cool bits of kit.
+They function in extreme conditions, for years or decades at a time, without any maintenance (barring [one incredible exception](https://www.nasa.gov/mission_pages/hubble/servicing/index.html)) or support beyond instructions from the ground.
+The mechanical engineering and astrodynamic understanding that goes into [balancing Kepler against solar pressure](https://www.nasa.gov/kepler/keplers-second-light-how-k2-will-work), [cooling JWST to near-absolute zero](https://jwst.nasa.gov/content/about/innovations/cryocooler.html) or precisely [manoeuvring LISA's constituent spacecraft](https://sci.esa.int/web/lisa/-/lisa-technology-interferometry-explained) in a formation millions of kilometres across is humbling.
+
+I don't have access to my own space-based telescope - though plenty of the raw data such instruments produce is [made available to the public](https://archive.stsci.edu/index.html).
+I also live in a particularly light-polluted part of the world, I can't do much stargazing, either.
+What I can do, however, is write software, which is a critical part of any robotic spacecraft, telescope or otherwise.
+So, I thought it would be interesting to try my hand at making my own fantasy space telescope!
+
+This is an open-ended endeavour, as there are lots of interesting things about telescopes to simulate, but it makes sense to start with something graphical, as telescopes are for making pretty pictures!
+
+I've already some experience with simulating optics using ray tracing.
+I'll initially base this project on my implementation of [Ray Tracing in One Weekend](https://raytracing.github.io/), an excellent, approachable introduction to generating ray-traced images.
+Though I've written [real-time ray tracers](https://github/ktyldev/oglc.git) as well, I think this is a better place to start because it's an offline renderer - you can't see what you'll render before you render it.
+That's a nice analogue to space-based telescopes, which have long exposure times and no viewfinders.
+
+Another nice aspect 
+
+## Networks
+
+
+