Notes concerning “Energy”

• Air conditioning 2007 to 2009 (21 minutes)
• A comparison of prices for different forms of energy 2007 to 2009 (2 minutes)
• Food miles imply insignificant energy costs 2007 to 2009 (4 minutes)
• The economics of solar energy 2008 (27 minutes)
• Predictions for future technological development (2008) 2008-04-19 (11 minutes)
• Pensamientos acerca de diseñar un calefón solar 2012-10-15 (2 minutes)
• Más pensamientos acerca de diseñar un calefón solar 2012-10-15 (5 minutes)
• Passively safe solar hot water 2012-10-15 (updated 2012-10-16) (6 minutes)
• Notes and calculations on building luxury underground arcologies for whoever wants them 2013-04-17 (updated 2019-08-27) (66 minutes)
• Illuminating yourself with 10 kilolux of LEDs to combat seasonal affective disorder 2013-05-17 (5 minutes)
• Bike charger 2014-04-24 (2 minutes)
• Notes from a Buenos Aires blackout, summer 2013-2014 2014-04-24 (15 minutes)
• The future of the human energy market (2014) 2014-04-24 (19 minutes)
• Fukushima leak 2014-04-24 (6 minutes)
• Building a resilient network out of litter 2014-04-24 (4 minutes)
• Keyboard-powered computers 2014-10-25 (updated 2018-10-28) (26 minutes)
• A hand-powered computer? 2015-09-03 (updated 2017-07-19) (11 minutes)
• Jellybean ICs 2016 2016-07-14 (updated 2019-05-05) (17 minutes)
• How would you maximize the energy density of a capacitor? 2016-07-27 (5 minutes)
• Solar dehumidifier 2016-08-11 (5 minutes)
• Pulley generator 2016-09-05 (2 minutes)
• Spring energy density 2016-09-05 (updated 2019-04-20) (3 minutes)
• The internet is probably not going to collapse for economic reasons 2016-09-06 (9 minutes)
• Low-power microcontrollers for a low-power computer 2016-09-06 (updated 2018-10-28) (18 minutes)
• Lithium fission energy 2016-09-06 (updated 2019-09-16) (6 minutes)
• Soldering with a compound parabolic concentrator or even just an imaging lens 2016-09-07 (2 minutes)
• Mic energy harvesting 2016-09-07 (updated 2016-09-08) (5 minutes)
• Solar-powered portable computers 2016-09-17 (updated 2018-10-28) (15 minutes)
• License-free femtowatt UHF radio transceiver ICs under a μJ per bit 2016-09-19 (5 minutes)
• Recuperator heat storage 2016-11-01 (updated 2019-08-21) (4 minutes)
• A design sketch of an air conditioner powered by solar thermal power 2016-12-22 (updated 2017-01-04) (29 minutes)
• Self replication changes 2017-01-16 (5 minutes)
• Reflections on rebraining calculators with this RPN calculator code I just wrote 2017-04-11 (4 minutes)
• Illumination cost 2017-05-31 (3 minutes)
• A quintuple-acting vacuum cascade to recycle heat for more efficient distillation and desalination 2017-06-21 (updated 2019-12-27) (3 minutes)
• Japan can achieve energy autarky via solar energy, but not much before 2027 2017-07-12 (4 minutes)
• Solar computer 2 2017-07-19 (3 minutes)
• Energy storage in a personal water tower: pretty impractical 2017-07-19 (2 minutes)
• Zombie contingency plan 2017-07-19 (9 minutes)
• Salt slush refrigeration 2017-08-22 (updated 2019-10-08) (12 minutes)
• Exploration of using RF current sources instead of ELF voltage sources for mains power 2018-04-30 (updated 2018-07-05) (29 minutes)
• Turning off the power supply for every sample to reduce noise 2018-06-18 (2 minutes)
• Lithium battery welder 2018-06-21 (updated 2019-01-22) (2 minutes)
• Notes on the STM32 microcontroller family 2018-06-30 (updated 2018-11-12) (42 minutes)
• Text editor design for e-ink displays 2018-10-28 (23 minutes)
• Three phase oscillating belt 2018-10-28 (4 minutes)
• Cheap textures 2018-10-28 (updated 2019-05-05) (5 minutes)
• Atmospheric pressure harvesting phoenix egg 2018-11-23 (14 minutes)
• Household thermal stores 2018-12-02 (updated 2018-08-19) (27 minutes)
• Balcony battery 2019-02-11 (updated 2019-12-06) (6 minutes)
• Groping toward a high-efficiency speaker driver 2019-04-02 (15 minutes)
• Things in Dercuano that would be big if true 2019-05-24 (updated 2019-08-21) (24 minutes)
• Terrestrial lithium supplies provide adequate energy storage to reach Kardashev Type 1 2019-07-25 (6 minutes)
• Energy storage efficiency 2019-07-30 (4 minutes)
• the oversold-as-low-power Renesas RL78 microcontroller line 2019-08-27 (10 minutes)
• Can you bitbang wireless communication between AVRs? How about AM-radio energy harvesting? 2019-08-27 (updated 2019-08-28) (37 minutes)
• Can artificially-lit vertical farming compete with greenhouses? 2019-09-08 (12 minutes)
• Heliogen 2019-11-19 (6 minutes)
• Why you can't run a diesel engine on water and diesel fuel with electrolysis 2019-11-24 (2 minutes)
• The Suburbean: a minimally-mobile dwelling machine with months of autonomy 2019-11-24 (updated 2019-12-03) (32 minutes)
• Underwater energy autonomy 2019-11-25 (9 minutes)
• Phase change unplugged oven 2019-12-15 (0 minutes)
• Argentine electric bill 2019-12-18 (3 minutes)