18 March 2012

When you’re right

logic, mind, management

I must thank my colleagues on Facebook and other electronic forums for stimulating me to put together the list below. I was also driven to think and write by responses to ‘Of riots in banana republics’ on Facebook. Over the last year or so, I’ve been observing how people come to know when they are ‘right’. By right I mean a feeling of being justified in saying or doing something, or in making a decision. There is much overlap between factors and they certainly are not so neatly compartmentalised in real life, as they may appear in print. The list below is being worked into a decision-making tool. You may add to the list by leaving a response.

2012 03 18 Feeling Justified and Right

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For those who want to spend their life understanding

The Analysis Tool (also called REPL) – is JavaScript code used by Claude.ai to perform the thermal calculations and generate the data. This was invoked using the repl command.

React Component – This is the visualization code Claude.ai created as an artifact using React and the Recharts library to display the temperature profiles. This was created with the identifier “temp-profile” and used the artifact type “application/vnd.ant.react”.

It now all makes perfect sense – right? 🤣😂

import React from 'react';
import { LineChart, Line, XAxis, YAxis, CartesianGrid, Tooltip, Legend, ResponsiveContainer } from 'recharts';

const TempProfile = () => {
  const [data, setData] = React.useState([]);

  React.useEffect(() => {
    // Using properties from Table 3
    const albumenFraction = 0.58;
    const shellFraction = 0.11;
    const yolkFraction = 1 - albumenFraction - shellFraction;
    
    const avgSpecificHeat = 
        albumenFraction * 3935 +
        yolkFraction * 3266 +
        shellFraction * 888;
    
    const eggMass = 0.06;
    const eggRadius = 0.025;
    const eggSurfaceArea = 4 * Math.PI * Math.pow(eggRadius, 2);
    
    const timePoints = [];
    const fridgeTemps = [];
    const eggTemps = [];
    const timeStep = 1;
    const totalTime = 7 * 60;
    
    for (let t = 0; t <= totalTime; t += timeStep) {
      let fridgeTemp;
      if (t <= 20) {
        fridgeTemp = 4 + (10 - 4) * (t / 20);
      } else {
        fridgeTemp = 4 + (10 - 4) * Math.exp(-0.01 * (t - 20));
      }
      
      const h = 10;
      const tempDiff = fridgeTemp - (eggTemps.length > 0 ? eggTemps[eggTemps.length - 1] : 4);
      const heatTransfer = h * eggSurfaceArea * tempDiff * timeStep;
      const tempChange = heatTransfer / (eggMass * avgSpecificHeat);
      
      const newEggTemp = (eggTemps.length > 0 ? eggTemps[eggTemps.length - 1] : 4) + tempChange;
      
      timePoints.push(t);
      fridgeTemps.push(fridgeTemp);
      eggTemps.push(newEggTemp);
    }
    
    const chartData = timePoints.map((t, i) => ({
      time: Math.round(t / 60 * 10) / 10,  // Convert to minutes with 1 decimal
      fridgeTemp: Math.round(fridgeTemps[i] * 1000) / 1000,
      eggTemp: Math.round(eggTemps[i] * 1000) / 1000
    }));
    
    // Sample every 3rd point to reduce data size
    setData(chartData.filter((_, i) => i % 3 === 0));
  }, []);

  return (
    <div className="w-full h-96 p-4">
      <ResponsiveContainer width="100%" height="100%">
        <LineChart data={data}>
          <CartesianGrid strokeDasharray="3 3" />
          <XAxis 
            label={{ value: 'Time (minutes)', position: 'bottom', offset: 0 }}
            dataKey="time"
          />
          <YAxis
            label={{ value: 'Temperature (°C)', angle: -90, position: 'insideLeft' }}
            domain={[3, 11]}
          />
          <Tooltip />
          <Legend />
          <Line 
            type="monotone" 
            dataKey="fridgeTemp" 
            stroke="#8884d8" 
            name="Fridge Temperature"
            dot={false}
          />
          <Line 
            type="monotone" 
            dataKey="eggTemp" 
            stroke="#82ca9d" 
            name="Egg Temperature"
            dot={false}
          />
        </LineChart>
      </ResponsiveContainer>
    </div>
  );
};

export default TempProfile;