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Power & Heat

Gasifier info: https://wiki.opensourceecology.org/wiki/Gasifier_Burner (take with grain of salt; these people think cars are necessary for civilization)
Solar cooking
- basket solar cooker w/ can lids
- another basket solar cooker
can rocket stove that looks like a better design than what I've tried in the past. Site also has a good vertical axis wind turbine design, and suggests getting discarded alu sheet from offset-printing / lithography shops

Lamellar Roof - roof framing w/ cylindrical shape; built from short segments of (usually) dimensional lumber bolted together

natural composites
finishes you can apply while naked
database of natural materials - mostly bioplastics, geopolymers, and stuff that can act as feedstock for 3d printing
Speed Tape - aluminum tape for high-airspeed applications

Origami simulator and more Computational Origami Resources
Miura (corrugated) fold video
Origami can be hardened with MinWax
Tomohiro Tachi does research on tesselations, many of them collapsible and/or structural. See research & software sections, and his Flickr
- Large rigid structures from thick panels made by sandwiching canvas between cardboard: [https://tsg.ne.jp/TT/cg/ThickRigidOrigami_tachi_5OSME.pdf]
Stiff structures from collapsible tubes
Biopaper - sounds like kombucha leather, but made by a papermaker (also, pretty transparent) and used in some cases for origami tessalations
Samira Boon does collapsible origami with digitally-woven textiles, including collaborations with T. Tachi (above) and some work on designs intended for space
An attempt at using x-form spans made out of cloth with a wooden dowel frame to create collapsible shelters for travelers on the Camino De Santiago
options for "giant outdoor origami paper"

tensegrity wheelchair on the tensegrity wiki
chair partial tensegrity
adjustable grip hitch is a useful knot! If making a loop of string/rope that you want to adjust, it can be turned around so it works better - not sure how to explain!

e-waste recycling gizmo - grinds ewaste and separates components w/ magnets and eddy current induction

3mules - guy travels the west coast with his three mules, living outside!
$1300 spend on bike lanes in NYC = one quality-adjusted life year when averaged over all city residents.
car crashes are the #1 cause of death for children in the US - where "children" are people under 19. Car crashes account for 20% of child deaths, with everything firearm-related in second place at 15%.
"We recognize that efficiency is a function of vehicle weight as compared to its cargo weight - another form of the Golden Ratio. The principle is simple: If the cargo weighs more than the vehicle itself - as in a person riding a bicycle - then you are approaching true efficiency. The trick is to have a vehicle/cargo ratio of LESS THAN 1." - Bill Stites, designer of the Truck Trike

GRIN Tech's Sun Trip tandem
Solar Catrike Road conversion, with details on all the components used
lightweight rigid solar panels
solar ebike build for round-the-world trip - sun tracking trailer; really a lot of research went into this build. blog here with lots of good info on matching battery, charge controller, and panel. He's a professional solar installer and gets into the technical details really well.
Sunbeam MAXA - seems like a decent panel, not super-high-priced but not a cheapo either
PingBattery sells LiFePO4 packs and comes recommended. About $1/Wh
LiGo battery from ebikes.ca is modular and has really good protections for current, voltage, temp, etc.