Add iota puzzle and cmb page

content/echoes/spherical-cmb/index.dj

@@ -0,0 +1,27 @@
+{ role=config }
+``` =toml
+hidden = true
+created_at = "2025-03-20T17:42:05+01:00"
+```
+
+{ role=description }
+:::
+This is a paper I, together with three of my collegues wrote for the mandatory third year batchelor preparation project at RUG.
+:::
+
+# Computing CMB temperature fluctuations for spherical spaces
+
+## Links
+
+::: embed-description
+:::
+
+- Paper: [source](https://git.moonythm.dev/ddd/bachelor-prep-paper), [pdf](https://git.moonythm.dev/ddd/bachelor-prep-paper/raw/branch/master/main.pdf)
+- Presentation: [source](https://git.moonythm.dev/ddd/bachelor-prep-presentation), [pdf](https://git.moonythm.dev/ddd/bachelor-prep-presentation/raw/branch/master/main.pdf)
+
+## Solve my riddle!
+
+Come to us in the following weeks with the answers to the following riddles in order to earn a special prize!
+
+1. What does $`\langle a_{lm} \rangle \neq 0` suggest/imply in our paper?
+2. The knowledge you are seeking lies beneath the runes engraved in [this manuscript](iota.txt).