Notes concerning “Physics”
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 2013-05-17) (67 minutes)
Illuminating yourself with 10 kilolux of LEDs to combat seasonal affective disorder
2013-05-17 (5 minutes)
Cheap shit ultrawideband
2013-05-17 (10 minutes)
Evaporation chimney
2013-05-17 (14 minutes)
Steampunk spintronics: magnetoresistive relay logic?
2013-05-17 (15 minutes)
Saturation detector
2013-05-17 (3 minutes)
Time domain lightning triggering
2013-05-17 (4 minutes)
A unicast phased-array ultrasonic “radio”
2013-05-17 (4 minutes)
A resistive-capacitive trackpad made from garbage and three ADC microcontroller pins
2013-05-17 (updated 2013-05-20) (17 minutes)
Ultraslow radio for resilient global communication
2013-05-17 (updated 2013-05-20) (26 minutes)
Bottle washing
2014-04-24 (7 minutes)
Holographic archival
2014-04-24 (10 minutes)
Inflatable stool
2014-04-24 (6 minutes)
Archival transparencies
2014-06-05 (updated 2014-06-29) (8 minutes)
Slotted tape with skewed involute roulette bristles as an alternative to hose clamps and possibly screws
2014-07-02 (6 minutes)
Keyboard-powered computers
2014-10-25 (updated 2018-10-28) (27 minutes)
A mechano-optical vector display for animation archival
2014-12-28 (updated 2015-09-03) (28 minutes)
Can you read the lunar lander’s plaque from Earth? Or write a new one?
2015-09-03 (9 minutes)
Simplified computing, down to the level of mining raw materials
2015-09-03 (22 minutes)
Hot wire saw
2015-12-28 (updated 2015-12-30) (9 minutes)
Electrodeposition 3d printing
2016-02-19 (4 minutes)
Spring energy density
2016-05-28 (updated 2016-06-06) (13 minutes)
Phase-change heat reservoirs for household climate control
2016-06-14 (updated 2016-06-17) (14 minutes)
Mechanical buck converter
2016-06-20 (5 minutes)
Thermodynamic systems in housing
2016-06-28 (24 minutes)
Flux deposition for 3-D printing in glass and metals
2016-07-03 (16 minutes)
How would you maximize the energy density of a capacitor?
2016-07-27 (6 minutes)
Coinductive keyboard
2016-07-30 (4 minutes)
Calculations about desalination in Israel
2016-08-11 (3 minutes)
Executable scholarship, or algorithmic scholarly communication
2016-08-11 (14 minutes)
Starfield servo
2016-08-30 (updated 2018-11-07) (13 minutes)
Regenerator gas kiln
2016-09-05 (updated 2017-04-10) (9 minutes)
Spring energy density
2016-09-05 (updated 2019-04-20) (5 minutes)
Digital logic with lasers, induced X-ray emission, and neutron-induced fission, for femtosecond switching times?
2016-09-06 (3 minutes)
Subterranean glazing
2016-09-06 (26 minutes)
Sun cutter
2016-09-06 (9 minutes)
House scrubber
2016-09-06 (updated 2018-05-05) (12 minutes)
Low-power microcontrollers for a low-power computer
2016-09-06 (updated 2018-10-28) (18 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)
License-free femtowatt UHF radio transceiver ICs under a μJ per bit
2016-09-19 (4 minutes)
Laser ablation of zinc or pewter for printed circuit boards
2016-09-19 (4 minutes)
Marking metal surfaces with arcs
2016-10-06 (4 minutes)
Spark particulate sieve
2016-10-06 (updated 2016-10-11) (6 minutes)
La vibración del hierro, ¿es de baja frecuencia o qué?
2016-10-07 (3 minutes)
Analogies between spring–mass–dashpot systems, electrical systems, and fluidic systems
2016-10-30 (5 minutes)
Recuperator heat storage
2016-11-01 (updated 2019-02-25) (3 minutes)
A design sketch of an air conditioner powered by solar thermal power
2016-12-22 (updated 2017-01-04) (29 minutes)
Passive ultrasound sonar
2016-12-28 (1 minute)
Millikiln
2017-01-17 (updated 2017-03-02) (4 minutes)
An electric furnace the size of a sake cup
2017-02-25 (updated 2017-03-02) (10 minutes)
Passivhaus seasonal thermal store
2017-03-02 (updated 2017-03-07) (2 minutes)
Passive dehumidifier
2017-03-20 (14 minutes)
Ice pants
2017-04-04 (updated 2019-01-22) (18 minutes)
¿Se puede armar un colector solar de agua caliente que anda en invierno acá en Buenos Aires?
2017-04-17 (2 minutes)
Fast sea salt evaporator
2017-06-01 (3 minutes)
A quintuple-acting vacuum cascade to recycle heat for more efficient distillation and desalination
2017-06-21 (3 minutes)
FM chirp sonar
2017-07-04 (1 minute)
Coolants
2017-07-04 (updated 2017-07-12) (11 minutes)
Piezoelectric engraving
2017-07-19 (4 minutes)
Hammering toolhead
2017-08-18 (6 minutes)
Bench trash power supply
2018-04-27 (9 minutes)
Data archival on gold leaf or Mylar with DVD-writer lasers or sparks
2018-04-27 (5 minutes)
Exploration of using RF current sources instead of ELF voltage sources for mains power
2018-04-30 (updated 2018-07-05) (29 minutes)
You can stuff a UHMWPE hammock in your wallet
2018-05-15 (updated 2018-10-28) (11 minutes)
Heating my apartment with a plastic tub of hot water
2018-06-17 (3 minutes)
Lithium battery welder
2018-06-21 (updated 2019-01-22) (2 minutes)
Electric hammer
2018-07-02 (updated 2018-07-05) (14 minutes)
Notes on circuitry for the Nutra seed activator
2018-08-16 (20 minutes)
You can’t construct optical systems with arbitrary light transfers, but you can do some awesome shit
2018-09-10 (11 minutes)
Atmospheric pressure harvesting phoenix egg
2018-11-23 (14 minutes)
Household thermal stores
2018-12-02 (27 minutes)
Friction-cutting plastic
2019-02-25 (8 minutes)
Ultralight tunnel personal rapid transit
2019-03-11 (15 minutes)
Elastic metamaterials
2019-03-19 (17 minutes)
Paper foil relays
2019-04-02 (updated 2019-04-24) (11 minutes)
Caustic business card
2019-04-08 (3 minutes)
Seeing the Apollo flags from Earth would require a telescope 27× the size of the Gran Telescopio Canarias
2019-04-10 (updated 2019-04-16) (2 minutes)
Maximal-flexibility designs for printable building blocks
2019-04-20 (18 minutes)
Plastic cutters
2019-04-20 (5 minutes)
Cold plasma oxidation
2019-05-01 (7 minutes)
Measuring submicron displacements by pitch bending a slide guitar
2019-05-05 (18 minutes)
Scrubber mask
2019-05-08 (5 minutes)
Free space optical coding gain
2019-05-08 (updated 2019-05-09) (4 minutes)
A phase-change soldering iron
2019-05-08 (updated 2019-05-09) (14 minutes)