User contributions for Elie

31 December 2022

• 07:4207:42, 31 December 2022 diff hist +2,042‎ Electric vehicles/Fossil fuel powered ‎No edit summary

30 December 2022

• 20:1220:12, 30 December 2022 diff hist +2,302‎ N Electric vehicles/Fossil fuel powered ‎ Created page with "If electric vehicles are powered with electricity that was generated by fossil fuels, is it worse for the environment than just driving a gas car? {{dp |<nowiki>electric_car.efficiency</nowiki> |<nowiki>100 miles per 34.6 kWh</nowiki> |<nowiki>The "gas mileage" equivalent for an average electric car.</nowiki> |<nowiki>Average Electric Car kWh Per Mile [Results From 231 EVs]</nowiki><br /><nowiki> ecocostsavings.com › average-electric-car-kwh-per-mile </nowiki>..."

29 December 2022

• 10:2710:27, 29 December 2022 diff hist +364‎ Solar panel minerals ‎No edit summary
• 09:2309:23, 29 December 2022 diff hist +313‎ Solar panel minerals ‎ →‎General estimates
• 07:0007:00, 29 December 2022 diff hist −121‎ Solar panel minerals ‎No edit summary
• 03:1503:15, 29 December 2022 diff hist +655‎ Solar panel minerals ‎No edit summary

28 December 2022

• 10:2910:29, 28 December 2022 diff hist +1,788‎ Solar panel minerals ‎ →‎General estimates
• 02:3202:32, 28 December 2022 diff hist +569‎ N Heat pump ‎ Created page with "An electric heat pump is one way to heat a building. It works a lot like air conditioning but in reverse: The hot air goes indoors; the cold air goes outdoors. Heat pumps are '''more energy-efficient''' than electric heaters.{{qn}} ==Research needed for this page== * ''How much'' more energy-efficient can a heat pump be? ** How does this depend on outdoor temperature? * How much energy does it typically take to ''manufacture and install'' a heat pump? *..."
• 02:3002:30, 28 December 2022 diff hist 0‎ Template:Qn ‎No edit summary
• 02:2902:29, 28 December 2022 diff hist 0‎ Template:Rn ‎No edit summary
• 02:0402:04, 28 December 2022 diff hist +75‎ Rooftop solar ‎ →‎Challanges
• 01:4301:43, 28 December 2022 diff hist +8,624‎ N Rooftop solar ‎ Created page with "Rooftops are a good place to put solar panels, because: * They are close to where the energy is typically used. * They need no extra land (unlike solar farms). That's an environmental footprint avoided. '''Summary:''' * In most cases, rooftop solar ''could'' provide enough energy for '''homes''', other '''buildings''', and '''charging''' electric vehicles. ** Exception: heating in cold parts of the world ** Exception: high-density cities * '''Ha..."

27 December 2022

• 23:3123:31, 27 December 2022 diff hist +1,208‎ N Solar panel minerals ‎ Created page with "It takes minerals to make solar panels. Some minerals are scarce. This might be an issue if we want to scale up green energy enough to replace fossil fuels. What we need is a full chart of all minerals (and their quantities) involved in all solar panel technologies. Apparently this doesn't exist on the internet already, so we have to make it ourselves. The tables below are currently a work-in-progress. The 3rd column of the tables below is based on a sc..."
• 22:5122:51, 27 December 2022 diff hist +70‎ N Template:Rn ‎ Created page with "^{<nowiki>[</nowiki>research needed<nowiki>]</nowiki>}"
• 22:2122:21, 27 December 2022 diff hist +1,217‎ Minerals ‎No edit summary current

24 December 2022

• 07:3407:34, 24 December 2022 diff hist 0‎ Calc:If all vehicles were electric ‎ →‎Powering the vehicles
• 07:3307:33, 24 December 2022 diff hist +5,176‎ Calc:If all vehicles were electric ‎No edit summary
• 06:4006:40, 24 December 2022 diff hist +5,327‎ N Calc:If all vehicles were electric ‎ Created page with "Suppose we keep the status quo of transportation,<!--car culture--> but make all vehicles electric. This raises some basic questions: * How much electricity would we need to power all the vehicles? * How much energy would it take to manufacture vehicles - both in the short term and long term? * Which critical minerals would we need, and how much of each? * Could the minerals be recycled from vehicles at their end-of-life? ==Powering the vehicles== Electric cars are..."

22 December 2022

• 13:3213:32, 22 December 2022 diff hist 0‎ Housing/electricity ‎ Corrected the footnotes (which were wrong in the original source too btw) current

30 November 2022

• 10:3210:32, 30 November 2022 diff hist +254‎ Code:fullscreen main.h ‎No edit summary current
• 10:2810:28, 30 November 2022 diff hist +1,101‎ Code:nodes.c ‎No edit summary current
• 09:5109:51, 30 November 2022 diff hist +10,953‎ N Code:fullscreen main.h ‎ Created page with "C header for easy OpenGL programming. Gets rid of most boilerplate code. ==Code== <syntaxhighlight lang="c"> →‎** Elie's OpenGL wrapper Creates a fullscreen vsync'd context with game-style access to keyboard & mouse. Version 1.1 **: #pragma once // This header file implements main(). // Here are the functions you must define in your own code: void init(); void draw(); void done(); /** Notes: * * The init() function is called once at startup. This is the place..."
• 09:4609:46, 30 November 2022 diff hist −8‎ File:font.data-uint8-1004x19 ‎ →‎Summary current
• 09:4509:45, 30 November 2022 diff hist +63‎ N File:font.data-uint8-1004x19 ‎ Bitmapped font file used by Code:text-quads.h
• 09:4009:40, 30 November 2022 diff hist +49‎ Code:text-quads.h ‎No edit summary current
• 09:3709:37, 30 November 2022 diff hist +56‎ Code:text-quads.h ‎No edit summary
• 09:3609:36, 30 November 2022 diff hist +6,672‎ N Code:text-quads.h ‎ Created page with "<syntaxhighlight lang="c"> // text-quads.h // Functions for drawing text in OpenGL, using textured quads. #define TQ_TEXTURE_WIDTH 1004 #define TQ_TEXTURE_HEIGHT 19 #define TQ_TEXTURE_FILENAME "font.data-uint8-1004x19" // DEPENDENCY: This texture file. /* Copyright 2022, Elie Goldman Smith This program is FREE SOFTWARE: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either ver..."
• 09:3409:34, 30 November 2022 diff hist +18,785‎ N Code:nodes.c ‎ Created page with "<syntaxhighlight lang="c"> /*** This is my new graph nodes program. I don't know what to call it yet. To compile: gcc nodes.c -o nodes -ffast-math -O -lm -lGL -lglut -lpthread This program has runtime dependencies: File in working directory: "font.data-uint8-1004x19" Installed packages: 'zenity' and 'leafpad' Copyright 2022, Elie Goldman Smith This program is FREE SOFTWARE: you can redistribute it and/or modify it under the terms of the GNU General..."

12 November 2022

• 06:4106:41, 12 November 2022 diff hist +1,423‎ Zero food-feed competition ‎ →‎For comparison, status quo: current

11 November 2022

• 07:4607:46, 11 November 2022 diff hist −296‎ Zero food-feed competition ‎No edit summary
• 07:2007:20, 11 November 2022 diff hist +2,184‎ Zero food-feed competition ‎ →‎For comparison, status quo:
• 04:4004:40, 11 November 2022 diff hist −706‎ File:food-funnel.png ‎ →‎Limitations: Removed section and moved its content to the talk page.
• 04:3904:39, 11 November 2022 diff hist +1,299‎ N File talk:food-funnel.png ‎ Created page with "==This diagram doesn't currently include fish.== Here's one way that fish could maybe be included in future versions of this diagram: * The top part would be renamed from 'crops harvested' to 'production primary', and would include ''wild-caught'' fish. * The 'animal feed' would include any human-edible calories fed to ''farmed'' fish. * The 'animal products' produced would include the ''farmed'' fish. To put things in perspective, seafood contributes about 12g protein/d..." current

9 November 2022

• 20:0120:01, 9 November 2022 diff hist +374‎ N Minerals ‎ Created page with "In pursuit of green energy technology, we need a significant amount of scarce metals. [https://www.iea.org/reports/the-role-of-critical-minerals-in-clean-energy-transitions/mineral-requirements-for-clean-energy-transitions This article] is a good start, but we should try to quantify the situation more rigorously for "full replacement of fossil fuel energy" scenarios."
• 19:5819:58, 9 November 2022 diff hist +33‎ Energy storage ‎ →‎Summary

8 November 2022

• 06:3906:39, 8 November 2022 diff hist +6,467‎ N Zero food-feed competition ‎ Created page with "Cows, goats and sheep can digest fibre and use it as calories. These animals can thus eat a few things that don't compete with food production: # Crop residues (also known as biomass waste) which are the fibrous leftover parts of food crops we have to grow anyway. # Grass from pasture lands. This feed can't be eaten by humans, chickens, or pigs. {{x|Except in very small quantities for roughage only. Humans, chickens and pigs can't extract any s..."

4 November 2022

• 23:2723:27, 4 November 2022 diff hist +1,208‎ Energy storage ‎No edit summary
• 23:2623:26, 4 November 2022 diff hist −2‎ Energy storage/specs ‎No edit summary current
• 21:3521:35, 4 November 2022 diff hist +1,088‎ N Why Bitcoin's energy usage is directly proportional to its price ‎ Created page with "By design, bitcoin mining pays out exactly 6.25 BTC, every 10 minutes - to someone, somewhere in the world. {{x|In practice, this usually gets split between many people in a mining pool.}} The more "work" a miner does, the greater their chances of getting these bitcoins. The network automatically adjusts the mining difficulty. If mining is too hard, it would be so unprofitable that everyone would stop mining - this would cause the mining difficulty to automatically..." current
• 21:3321:33, 4 November 2022 diff hist +354‎ N Talk:Wind power ‎ Created page with "==Sulfur hexafluoride== wind power uses sf6? * what's it for: electrical switching apparently * how much is it currently using * how much more would it currently use if wind or solar powered the world * total ghg per terajoule: is it at least better than coal? * any alternatives? ~~~~"
• 06:4206:42, 4 November 2022 diff hist +2,270‎ N Wiki for a better world:Redesigns ‎ Created page with "This page is for ways the wiki could be completely redesigned. ==Wiki engine== make a new wiki engine * use case ** ultra short "pages" that heavily link to each other ** the whole wiki as one gigantic directed graph (flow chart style) * text node ** displayed as a rounded square *** zooming in increases width but left-right-clamped to screen *** if (width clamped) height = whatever needed for text. but also adjusted so the text doesnt suddenly shift vertically when you..." current
• 03:0703:07, 4 November 2022 diff hist +214‎ Wiki for a better world:Calculator/Feature requests ‎ →‎Inline calculations (embedding on wikipages)
• 03:0603:06, 4 November 2022 diff hist +436‎ Wiki for a better world:Calculator/Feature requests ‎ →‎Inline calculations (embedding on wikipages)
• 02:4102:41, 4 November 2022 diff hist +618‎ N Drug legalization ‎ Created page with "==Dilution== One method to legalize harder drugs (such as cocaine, MDMA, heroin, methamphetamine, etc) it to have them sold ''only'' in diluted form, in regulated drinks: * The dosage should be low enough that it's impossible to overdose without consuming at least 5 litres (which is impossible for any stomach to hold at once). * The drink should not be flavored or labelled in a way that appeals to children. <!-- TODO: idea needs expansion --> This is very similar to how..." current
• 02:2902:29, 4 November 2022 diff hist +519‎ N Energy storage/specs ‎ Created page with "{|class="wikitable" | !Type !Specific energy<br />(watt hours per kg) !Specific power<br />(watts per kg) !Charge time<br />(minutes) !Self-discharge<br />(% per month) !Roundtrip efficiency<br />(%) !Lifespan<br />(charge-discharge cycles) !Lifespan<br />(years shelf life) |- |Lithium-ion batteries |- |Lead-acid batteries |- |Iron-redox flow batteries |- |Flywheels |- |Hydrogen gas + fuel cell |- |Hydrogen gas + combustion engine |- |Hydrog..."
• 01:0601:06, 4 November 2022 diff hist +33‎ Energy storage ‎ →‎Types
• 00:3600:36, 4 November 2022 diff hist +332‎ Energy storage ‎ →‎Iron-redox flow batteries
• 00:1200:12, 4 November 2022 diff hist +1,127‎ Energy storage ‎No edit summary

3 November 2022

• 23:5123:51, 3 November 2022 diff hist +129‎ Energy storage ‎ →‎Flywheels
• 23:4923:49, 3 November 2022 diff hist +968‎ Energy storage ‎No edit summary