path: root/outdoorsing
diff options
authorBryan Newbold <>2018-08-10 16:01:16 -0700
committerBryan Newbold <>2018-08-10 16:06:46 -0700
commit78da0322932f17ed4d5b54f630e4139752b12129 (patch)
treee8d20f5f067b9218ed3fe7290cb794b9022bb947 /outdoorsing
parente724b0f73a44255a22f16af5d10cf95dab71e0f6 (diff)
refactor under outdoorsing
Diffstat (limited to 'outdoorsing')
4 files changed, 194 insertions, 0 deletions
diff --git a/outdoorsing/ b/outdoorsing/
new file mode 100644
index 0000000..6e15c52
--- /dev/null
+++ b/outdoorsing/
@@ -0,0 +1,89 @@
+format: rst
+toc: no
+SCUBA Diving
+Self Contained Underwater Breathing Apparatus
+SCUBA stands for "Self-Contained Underwater Breathing Apparatus".
+One of the primary organization regulating recreational SCUBA diving is
+PADI (the Professional Association of Diving Instructors).
+:BCD: The buoyancy control device is basically an inflatable live vest
+ that you can inflate using the regulator (or by mouth) to control
+ your buoyancy. Your buoyancy changes as you use up air (tank gets
+ lighter for same volume displaced), inhale/exhale, swim in water
+ of different temperature or salinity, or change depth: increased
+ pressure compresses any flexible air pockets, including the BCD
+ itself, neoprene foam, or a dry-suit.
+ Most BCDs have their own pressure hoses coming from the first stage
+ regulator that supply air.
+ Sometimes there is only one vent valve, which has to be at the
+ highest orientation or air will not vent out of the bladders.
+:Tank: Most tanks are made of steel or aluminum and can store compressed
+ air of up to 3000psi. They are stored at pressure to prevent moisture
+ from leaking in. There is a valve built into the tank itself that
+ usually gets taken apart and repaired every two years. Tanks
+ can last for decades even with heavy use; they are pressure tested
+ for fatigue and leaks.
+:Regulator: The first-stage regulator is connected to the tank and steps
+ the pressure down to about 250psi above the surrounding/ambient
+ pressure. Hoses carry air at this mid-level pressure to the second
+ stage regulator/mouthpiece, which steps the pressure down to
+ about what is in your lungs. Depending on the regulator they can
+ be stiff (you have to suck a bit to get air, but then it rushes
+ in with force) or very natural feeling (air comes very smoothly
+ on inhalation and doesn't press into your lungs).
+:Alternate: These days almost everybody carries a second regulator mouthpiece
+ for emergencies. These are always on and ready to breath from,
+ but usually stiffer so they don't free-flow as often.
+:Dive Computer:
+ A dive computer monitors time and depth to give you an accurate picture
+ of how much excess nitrogen is in a diver's bloodstream. By
+ continuously integrating they usually "give more time at depth" than
+ hand calculations using tables (which err towards safety).
+:Dry Suit: A dry suit is a sealed and air tight, keeping the diver's skin dry.
+ Extra insulation is needed to give warmth underneath. Some dry
+ suits are made of compressed neoprene.
+ A dry suit has to be constantly adjusted with tank air just like
+ the BCD to maintain inflation and buoyancy.
+:Wet Suit: Wet suits work on the principle of holding water against the skin:
+ a diver's body warms this water and stays cozy as long as water
+ flow is restricted enough. Even little bit too much flow through
+ wrist or ankle openings can be very cold.
+A PADI Open Water Diving course gives a recommended limit of 20m/60ft.
+A "deep dive adventure course" gives a recommended limit of 30m/100ft,
+and additional experience gives a limit of 40m/130ft.
+With careful decompression stops and enriched compressed air (higher oxygen
+content) it's possible to reach depths of hundreds of meters. Sometimes
+commercial divers will dive for many hours using surface supplied air,
+then live at the surface in a compression chamber overnight between dives
+to stay at the same pressure [*]_.
+I'm pretty sure `Jacques Cousteau`_ invented the aqualung, which is the basis
+for modern diving, but I'll have to check.
+.. _Jacques Cousteau: /k/jacquescousteau/
+After a regular no-decompression dive, wait at least 12
+hours before flying (or going to high altitude, eg over 300m).
+.. [*] Need a citation, heard this word of mouth
diff --git a/outdoorsing/bikes.txt b/outdoorsing/bikes.txt
new file mode 100644
index 0000000..920fd9f
--- /dev/null
+++ b/outdoorsing/bikes.txt
@@ -0,0 +1,54 @@
+- seat security bolts (?)
+- serial number + photo!
+- set of lights
+- fenders );
+- new brakes (?)
+ => old chunky style
+- seat security bolts (?)
+- gatorskins?
+current gearing:
+- 50T / 110mm front ring
+- fixed: "1/8"-18T"
+- freewheel: "1/2 by 1/8" "main drive" "A5" => 16T?
+- 165mm cranks "bulletproof"
+- good pedals/straps (done)
+mission bikes was:
+- 62cm (should have gone with 59cm though)
+ Size:
+ 59cm
+ 62cm
+ S/T C-C
+ 55.5cm
+ 58.5cm
+ T/T Length
+ 56.5cm
+ 58.5cm
+ H/T Angle
+ 74.0deg
+ 74.5deg
+ S/T Angle
+ 73.5deg
+ 73.4deg
+ H/T Length
+ 15.6cm
+ 18.3cm
+ Wheel Base
+ 97.5cm
+ 99cm
+ B/B Drop
+ 5.5cm
+ 5.5cm
+ C/S Length
+ 39.3cm
+ 39.3cm
+ Stand Over
+ 33in
+ 34in
diff --git a/outdoorsing/long_routes.txt b/outdoorsing/long_routes.txt
new file mode 100644
index 0000000..e5aa3eb
--- /dev/null
+++ b/outdoorsing/long_routes.txt
@@ -0,0 +1,36 @@
+Multi-day through multi-week, mostly road and gravel bike routes!
+Northern Summer
+Washington, USA: North Cascades and Yakama loop
+Loads of routes in the USA; see [Adventure Cycling Association][aca]. Notably:
+- "Sierra Cascades": parallel to the pacific crest trail, on bike
+- Pacific Coast itself
+- Route 66 (at least the western subset); Santa Monica
+- Western Express: SF to Pueblo, Colorado; ~1600 miles, a month or so.
+- Southern Tier: San Diego throuhg El Paso; route continues cross-country
+- Great Parks North: Montana inot Canada (Banff, Jasper)
+- Utah Cliffs: short (300 mile) loop aroun dZion.
+Iran: paved roads?
+Scandanavia: routes on the "EuroVelo" network
+Northern Winter
+Tasmania: paved roads?
+Patagonia/Chile/Argentina: Carretera Austral; ~500 miles, roughly 10 days; or
+770 miles in full; gravel road. Very popular with cyclists.
diff --git a/outdoorsing/touring_bike.txt b/outdoorsing/touring_bike.txt
new file mode 100644
index 0000000..c79c7ff
--- /dev/null
+++ b/outdoorsing/touring_bike.txt
@@ -0,0 +1,15 @@
+Surly LHT, probably 58cm, either 26" or 700c, non-disk prefered
+ => $1275 new, $14500 disks
+ => 26" larger off-road tires
+ => 700c probably rides more fun?
+ => compatability with friends probably more important than stores?
+Salsa Vaya
+ => lighter/faster? 700c but more tire clearance
+ => $1400
+Trek 520
+ => 700c x 45 (same as LHT)
+ => haven't looked