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<!DOCTYPE html>
<html lang="en-US">
<head>
<title>Blog</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- SEO Description -->
<meta name="author" content="Nicholas S. Selby">
<meta name="description" content="Nicholas S. Selby's Blog">
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<meta property="og:title" content="Blog">
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<meta property="og:image:alt" content="Nicholas Selby: Engineering that Centers Users and Their Communities">
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<a href="index.html" id="name">NICHOLAS S SELBY</a>
<nav>
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<label class="menu-icon" for="menu-btn" tabindex="0"><span class="navicon"></span></label>
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<li><a href="about.html">ABOUT</a></li>
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<!-- Estimated reading time assumes an average reading speed of 228 words per minute (https://iovs.arvojournals.org/article.aspx?articleid=2166061) -->
<main>
<a class="post" aria-label="Improved FIFO COGS Tracking in Microsoft Excel" href="fifo.html">
<p class="date">October 18, 2024</p>
<article>
<img src="blog/fifo.jpg" alt="An Excel table of sales with a column for Cost of Goods Sold (COGS)">
<div>
<h2>Improved FIFO COGS Tracking in Microsoft Excel</h2>
<p class="teaser">An open-source tool to track COGS using FIFO with multiple SKUs and consumables</p>
<span class="est-read-time">20</span>
</div>
</article>
</a>
<div class="separator"></div>
<a class="post" aria-label="A Gradient-Based Approach to Solving Mixed Binomial Distributions" href="binomials.html">
<p class="date">September 4, 2024</p>
<article>
<img src="blog/binomial.jpg" alt="A chalkboard with math">
<div>
<h2>A Gradient-Based Approach to Solving Mixed Binomial Distributions</h2>
<p class="teaser">Determine the individual probabilities of multiple binomial distributions when given their combined probability mass function using gradient descent.</p>
<span class="est-read-time">5</span>
</div>
</article>
</a>
<div class="separator"></div>
<a class="post" aria-label="How Mistaking Power for Energy Almost Cost Millions" href="power-vs-energy.html">
<p class="date">October 6, 2023</p>
<article>
<img src="blog/power-vs-energy.jpg" alt="A mountain bike, a stove, a shower, a candle, and a car">
<div>
<h2>How Mistaking Power for Energy Almost Cost Millions</h2>
<p class="teaser">Learn how pedanticism and collaborative physics ensured rural farmers' access to affordable, renewable electricity, and how you can understand the difference between power and energy.</p>
<span class="est-read-time">25</span>
</div>
</article>
</a>
<div class="separator"></div>
<a class="post" aria-label="Nairobi Bound: A Comprehensive Guide for Americans Starting a New Life in Kenya's Capital" href="guide-to-kenya.html">
<p class="date">May 24, 2023</p>
<article>
<img src="blog/kenya.jpg" alt="My friends and I feeding a giraffe">
<div>
<h2>Nairobi Bound: A Comprehensive Guide for Americans Starting a New Life in Kenya's Capital</h2>
<p class="teaser">When I moved to Kenya in 2022, I had never been to Africa. This is a collection of everything I wish I knew before I moved.</p>
<span class="est-read-time">40</span>
</div>
</article>
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<a class="post" aria-label="Phishing Prevention on a Budget: How to Test and Train Your Employees for Free" href="phishing.html">
<p class="date">March 28, 2023</p>
<article>
<img src="blog/phishing.jpg" alt="A fishhook and an at symbol (@)">
<div>
<h2>Phishing Prevention on a Budget: How to Test and Train Your Employees for Free</h2>
<p class="teaser">Maximize your cybersecurity defenses by conducting free phishing tests on your employees and empowering them to recognize and avoid phishing attacks.</p>
<span class="est-read-time">10</span>
</div>
</article>
</a>
<div class="separator"></div>
<a class="post" aria-label="I2R Losses in Single- and Three-Phase Distribution Networksy" href="line-losses.html">
<p class="date">March 4, 2023</p>
<article>
<img src="blog/line-losses.jpg" alt="A power line pole">
<div>
<h2>I2R Losses in Single- and Three-Phase Distribution Networks</h2>
<p class="teaser">How unbalanced do loads on a three-phase distribution network have to be to warrant reconfiguring the network to be single-phase?</p>
<span class="est-read-time">15</span>
</div>
</article>
</a>
<div class="separator"></div>
<a class="post" aria-label="15 Steps to Donate a Kidney" href="kidney.html">
<p class="date">September 27, 2021</p>
<article>
<img src="blog/kidney.jpg" alt="Me about to donate a kidney">
<div>
<h2>15 Steps to Donate a Kidney</h2>
<p class="teaser">The best decision I ever made was to donate my left kidney to a stranger. I kept a detailed journal of the entire experience, from the idea's inception to my surgery and recovery.</p>
<span class="est-read-time">45</span>
</div>
</article>
</a>
<div class="separator"></div>
<a class="post" aria-label="Quick Reference Sheet for Bond Graphs" href="blog/bond-graph-quick-ref.pdf" target="_blank" download>
<p class="date">July 21, 2021</p>
<article>
<img src="blog/bond-graphs.jpg" alt="Example illustration of a 0-junction">
<div>
<h2>Quick Reference Sheet for Bond Graphs</h2>
<p class="teaser">My PhD research relied heavily on bond graph modeling of physical systems. I made this printable reference to help me remember causal stroke directions, constitutive laws, etc. Note: clicking on this link will download a PDF.</p>
</div>
</article>
</a>
<div class="separator"></div>
<a class="post" aria-label="The MIT MechE Qualifying Exam Fails Women" rel="external" href="https://thetech.com/2020/08/27/meche-qual-exams-fail-women" target="_blank">
<p class="date">August 27, 2020</p>
<article>
<img src="blog/quals.jpg" alt="Bar chart showing that women fail the qualifying exam at twice the rate of men">
<div>
<h2>The MIT MechE Qualifying Exam Fails Women</h2>
<p class="teaser">Half of all women who failed the MIT Mechanical Engineering doctoral qualifying examination would likely have passed if they were men. Note: clicking on this link will redirect you to the article in <i>The Tech</i>, MIT's school newspaper.</p>
<span class="est-read-time">6</span>
</div>
</article>
</a>
<div class="separator"></div>
<a class="post" aria-label="Common Public Speaking Problems and Exercises to Fix Them" href="public-speaking-problems.html">
<p class="date">July 25, 2020</p>
<article>
<img src="blog/public-speaking.jpg" alt="Me speaking publicly">
<div>
<h2>Common Public Speaking Problems and Exercises to Fix Them</h2>
<p class="teaser">Swallow a tablespoon of honey. Then, rehearse while laying flat on the ground facing upward with a heavy object on your belly. Whenever you inhale, force the object to rise. While speaking, force the object to fall.</p>
<span class="est-read-time">5</span>
</div>
</article>
</a>
<div class="separator"></div>
<a class="post" aria-label="Biblical Inerrancy" href="biblical-inerrancy.html">
<p class="date">May 28, 2020</p>
<article>
<img src="blog/biblical-inerrancy.jpg" alt="A bible in a dark room">
<div>
<h2>Biblical Inerrancy</h2>
<p class="teaser">I grew up believing that everything written in the Bible was literally true. I aim to guide a deconstruction of biblical inerrancy and provide an alternative view in which I have found freedom.</p>
<span class="est-read-time">30</span>
</div>
</article>
</a>
<div class="separator"></div>
<a class="post" aria-label="Graduate Student Mental Health is in Crisis" rel="external" href="https://thetech.com/2019/10/10/graduate-student-mental-health" target="_blank">
<p class="date">October 10, 2019</p>
<article>
<img src="blog/g4hmit.jpg" alt="Graduate student sitting on steps holding their head in their hands">
<div>
<h2>Graduate Student Mental Health is in Crisis</h2>
<p class="teaser">MIT graduate students need immediate action to improve access to mental health care and address root causes. Note: clicking on this link will redirect you to the article in <i>The Tech</i>, MIT's school newspaper.</p>
<span class="est-read-time">8</span>
</div>
</article>
</a>
<div class="separator"></div>
<a class="post" aria-label="Gospel Authorship" href="gospel-authorship.html">
<p class="date">April 15, 2018</p>
<article>
<img src="blog/gospels.jpg" alt="A stained glass window of an anonymous evangelist writing a gospel">
<div>
<h2>Gospel Authorship</h2>
<p class="teaser">In the quest to understand the origins of the four canonical Gospels, a puzzling mystery emerges—none of the authors are confirmed to have personally met Jesus.</p>
<span class="est-read-time">25</span>
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© 2018–2025 This work by <a href="https://rupumped.github.io" property="cc:attributionName" rel="cc:attributionURL">Nicholas S. Selby</a> is licensed under a <a rel="license" target="_blank" href="http://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 International License</a>. Feel free to fork the <a rel="external" target="_blank" href="https://github.com/rupumped/rupumped.github.io">source code</a> from GitHub and create your own website using this template.
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