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User contributions for Elie

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A user with 1,956 edits. Account created on 18 May 2022.
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7 August 2022

6 August 2022

5 August 2022

  • 12:1512:15, 5 August 2022 diff hist +36,136‎ N Code:isochromic.c ‎ Created page with "<syntaxhighlight lang="c"> // Elie's isochromic image generator v0.5 // Copyright 2022, Elie Goldman Smith // License: GNU GPL V3 // To compile this code: // gcc isochromic.c -lm -lfftw3 -lreadline -lcurses -O3 -o isochromic // # takes awhile to compile, because of optimization and stb_image #include <ctype.h> #include <fftw3.h> #include <math.h> #include <signal.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <readline/readline.h> #include <..."
  • 12:1112:11, 5 August 2022 diff hist +14,170‎ N Code:food1.sql ‎ Created page with "<syntaxhighlight lang="sql"> -- This is used in the methodology of various olam.wiki pages -- Copyright Elie Goldman Smith, 2022 (Creative Commons license) -- Run this in SQLite3 ---------------------- -- Load data from various sources .mode csv -- cross-reference: crops (FAO data) with foods (USDA nutrition data): .import fao_usda.csv fao_usda -- nutrition (USDA): .import data/sr28-collated.csv..."
  • 07:3007:30, 5 August 2022 diff hist −290,389‎ Crop choices ‎ →‎Best yielding crops for each region
  • 04:4104:41, 5 August 2022 diff hist +15‎ Crop choices ‎ →‎Best yielding crops for each region

4 August 2022

23 June 2022

  • 17:4317:43, 23 June 2022 diff hist +164‎ Materials ‎ →‎Research needed current
  • 17:3817:38, 23 June 2022 diff hist +832‎ N Laundry ‎ Created page with "People like to have clean clothes. But how many resources does it take to uphold the "western" lifestyle of (for example) washing a shirt after wearing it no more than twice? ==Research needed== Things to consider * Soap and water involved * Energy used by the washer * Energy used in manufacturing the washer, divided by the number of washes expected of the lifespan Approaches * Calculate things per wash, or per clothing item washed * Scale it up and see if it matches ot..." current
  • 17:3517:35, 23 June 2022 diff hist +873‎ N Cars ‎ Created page with "==Research needed== Vehicles to analyze * Electric car(s) * Gasoline-powered car(s) For each vehicle * Life cycle assessment: stages ** production (materials, manufacturing) ** usage (driving, repairs, maintenance) ** disposal (scrapping, recycling, and/or putting in landfill) * For each stage, list resources used: ** Energy ** Materials (start by quantifying each material separately, if possible) ** If data is available: *** Carbon emissions *** Other pollution *** Labo..." current
  • 17:2517:25, 23 June 2022 diff hist +1,599‎ N Appliances ‎ Created page with "It's a common ''green initiative'' to replace '''old''' appliances with '''new''' ones that use less energy. But in what cases is this actually beneficial to the environment - and in what cases is it '''worse'''? We have to compare the environmental footprint of making a new appliance vs the energy saved. Reasons we shouldn't assume (by default) that replacement is the better choice: * Globally, Energy#Energy_demand|manufacturing uses far more energy than house..."

22 June 2022

  • 23:5323:53, 22 June 2022 diff hist −7‎ Wood ‎No edit summary current
  • 23:5223:52, 22 June 2022 diff hist +927‎ N Wood ‎ Created page with "/wood Wood is both a material and a fuel. It comes from cutting down trees. ==Research needed== Global production of wood * By source type ** Tree farms *** Yields: how much wood per day per acre? ** Old growth *** How much wood per acre of deforestation? * By product grade ** Lumber ** Firewood ** Pulp/paper ** Sawdust ** Other? What would happen if global production increased? More old-growth forests would be converted to tree farms, I wo..."
  • 19:4719:47, 22 June 2022 diff hist +479‎ N Talk:Materials ‎ Created page with "==How to make this work?== What should I (the webmaster) put in place to enable people to easily contribute to the research? I'm trying to set it up in a way that... * anyone can contribute information on any material (glass, steel, etc) * the information fits into the framework I wrote (environmental impacts) Should there be some sort of a workspace? Perhaps a wiki table or two? I'm looking for ideas. ~~~~" current
  • 19:2619:26, 22 June 2022 diff hist +964‎ N Materials ‎ Created page with "The world depends on materials such as metal, glass, plastic, wood, and so many more. All of these have an environmental impact, and involve some human labor. How do we weigh the benefits of any ''green solution'' against the materials it uses? ==Research needed== For each material, consider * The energy it takes to produce it * The pollution it takes to produce it {{x|If there are less polluting ways, are there tradeoffs such as needing mo..."
  • 19:0719:07, 22 June 2022 diff hist +863‎ N Insulation ‎ Created page with "It takes energy to heat & cool buildings. The worse the insulation, the more energy it takes. There are plenty of ways to improve the insulation. But that ''also'' takes energy - as well as labor and materials. We need to compare the environmental impact of ''doing the work'' vs ''doing nothing''. In which cases is it better to renovate, and in which cases is it better to just let it be? ==Research needed== Compare various retrofit scenarios, such as * Replacing o..." current

8 June 2022

31 May 2022

30 May 2022

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