From 924e264fe7bfb8d10276f6dfe2594544b3c317dc Mon Sep 17 00:00:00 2001
From: yuni <hut@hut.pm>
Date: Wed, 27 Nov 2024 20:21:09 +0100
Subject: [PATCH] draft atmosphere design

---
 doc/research.md | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/doc/research.md b/doc/research.md
index 6e6c9b3..d4d7fd8 100644
--- a/doc/research.md
+++ b/doc/research.md
@@ -77,6 +77,53 @@ Based on Figure 27 from SRC1, and Figure 28 using the middle of the 3 temperatur
 | -115 | 200 | 110 |
 | -125 | 400 | 120 |
 
+### Designing the in-game atmosphere
+
+New mechanics:
+
+- [ ] Ambient Pressure
+    - [ ] Depends on altitude
+- [ ] Temperature
+    - [ ] Ambient temperature
+    - [ ] Space suit temperature
+    - [ ] Vehicle temperature
+    - [ ] Air temperature inside?
+- [ ] Wind
+    - [ ] [Depends on latitude](https://en.wikipedia.org/w/index.php?title=Atmosphere_of_Jupiter&oldid=1255052800#Zones,_belts_and_jets)
+    - [ ] [Needs to account for vortices, red spots](https://en.wikipedia.org/w/index.php?title=Atmosphere_of_Jupiter&oldid=1255052800#Vortices)
+- [ ] Hydrogen (resource)?
+
+Relations between mechanics:
+
+- [ ] Pressure decelerates you
+    - relative to the motion of the planet plus the wind
+    - scaled by your surface area
+- [ ] [Buoyancy](https://en.wikipedia.org/wiki/Buoyancy): upward acceleration depending on densities (yours and ambient), altitude (gravitational acceleration), and your mass
+    - Negligible for any current vehicles but could be cool for zeppelins
+- [ ] [Drag?](https://en.wikipedia.org/wiki/Drag_(physics)) (with different drag coefficients depending on vehicle and angle)
+    - [ ] [Form drag](https://en.wikipedia.org/wiki/Parasitic_drag#Form_drag)
+    - [ ] [Lift-induced drag](https://en.wikipedia.org/wiki/Lift-induced_drag)
+- [ ] Death at pressure of ~400 bar through implosion (depending on vehicle)
+- [ ] Death at high temperatures through continuous damage when temperature exceeds 60°C
+- [ ] Hydrogen + Oxygen = Water, used for evaporative cooling (works only at right pressure/temperature)
+
 ## Io
 
 - Video of Tvashtar volcano: https://photojournal.jpl.nasa.gov/catalog/PIA09665
+
+# Chemistry
+
+- [X] Oxygen
+- [ ] Hydrogen
+
+## Uses
+
+- [X] Oxygen
+    - [X] Breathing
+- [ ] Hydrogen
+    - [ ] Thruster fuel? (reacting with O2?)
+    - [ ] Ion engine?
+- [ ] Water (H2O)
+    - [ ] Evaporative cooling?
+- [ ] [Hydrogen Peroxide](https://en.wikipedia.org/wiki/Hydrogen_peroxide)? (H2O2)
+    - Does this have any uses?