Readable By All (Posts about science)http://drwxr-xr-x.org/enContents © 2020 <a href="mailto:n.tesla@example.com">Dylan Leigh</a> Tue, 03 Mar 2020 09:21:24 GMTNikola (getnikola.com)http://blogs.law.harvard.edu/tech/rss- More Evidence Early Human Diets Were Highly Plant/Carb Basedhttp://drwxr-xr-x.org/posts/2020/02/more-evidence-that-early-human-diets-were-significantly-plantcarb-based/Dylan Leigh<div><p>An article in last month's Science, <a class="reference external" href="https://science.sciencemag.org/content/367/6473/87">"Cooked starchy rhizomes in
Africa 170 thousand years ago"</a>, provides some
archaeological evidence of early humans cooking and eating tuber-like
vegetables.</p>
<p><a href="http://drwxr-xr-x.org/posts/2020/02/more-evidence-that-early-human-diets-were-significantly-plantcarb-based/">Read more…</a> (1 min remaining to read)</p></div>biochemistrybiologynutritionpseudosciencescienceveganvegetarianhttp://drwxr-xr-x.org/posts/2020/02/more-evidence-that-early-human-diets-were-significantly-plantcarb-based/Sat, 01 Feb 2020 00:54:45 GMT
- Assorted Science Links (Jan 2020)http://drwxr-xr-x.org/posts/2020/01/science-links-jan-2020/Dylan Leigh<div><p>In the interest of filling more blog pages and clearing out lots of
bookmarks ("that's interesting, I should post that"), here are some
assorted science links I've come across recently, with minimal
annotation.</p>
<p><a href="http://drwxr-xr-x.org/posts/2020/01/science-links-jan-2020/">Read more…</a> (5 min remaining to read)</p></div>biochemistrybiologychemistryfemtochemistrylinkpilenutritionphysicspseudosciencesciencehttp://drwxr-xr-x.org/posts/2020/01/science-links-jan-2020/Fri, 31 Jan 2020 12:50:41 GMT
- Sunday Maths: The Diagonal-Sum Mental Multiplication Methodhttp://drwxr-xr-x.org/posts/2019/11/sunday-maths-the-diagonal-sum-mental-multiplication-method/Dylan Leigh<div><p>This is a mental math technique to solve non-trivial integer
multiplication I picked up from one of Arthur Benjamin's talks, and is
widely used by other "mathemagicians" to solve large products.</p>
<p>It converts an n × n multiplication problem into a n² set of single
digit multiplications, arithmetically identical to the <a class="reference external" href="http://mathworld.wolfram.com/LatticeMethod.html">"Lattice
Method"</a>. However,
instead of filling the lattice first and then summing each diagonal,
this method calculates each sum as soon as possible - thus you only
need to keep track of the bare minimum of working data and it becomes
possible to do the problem entirely in your head.</p>
<p><a href="http://drwxr-xr-x.org/posts/2019/11/sunday-maths-the-diagonal-sum-mental-multiplication-method/">Read more…</a> (4 min remaining to read)</p></div>algebraarithmeticcombinatoricsmathematicsmental mathsciencehttp://drwxr-xr-x.org/posts/2019/11/sunday-maths-the-diagonal-sum-mental-multiplication-method/Sun, 24 Nov 2019 05:34:18 GMT
- Sunday Maths - Quickly Multiplying Teenshttp://drwxr-xr-x.org/posts/2019/11/sunday-maths-quickly-multiplying-teens/Dylan Leigh<div><p>In a similar vein to <a class="reference external" href="http://drwxr-xr-x.org/posts/2019/11/sunday-maths-simplifying-squares/">last week's post on simplifying squares</a>, this one uses some basic
algebra to make it easier to multiply numbers between 10-20:</p>
<pre class="literal-block">
(10 + x)(10 + y) = 100 + 10x + 10y + xy = 10(x + y + 10) + xy
</pre>
<p><a href="http://drwxr-xr-x.org/posts/2019/11/sunday-maths-quickly-multiplying-teens/">Read more…</a> (1 min remaining to read)</p></div>algebraarithmeticcombinatoricsmathematicsmental mathsciencehttp://drwxr-xr-x.org/posts/2019/11/sunday-maths-quickly-multiplying-teens/Sat, 09 Nov 2019 14:47:05 GMT
- Forms of Life part 1: Intro to Bionomenclaturehttp://drwxr-xr-x.org/posts/2019/11/forms-of-life-part-1-overview-of-biological-taxonomy/Dylan Leigh<div><p>Part one of what I hope will be series of at least two articles on how
different lifeforms differ.</p>
<p>To start off, this article will give an overview of the hierarchical
classification of biological life, with a focus on the nomenclature of
biological nomenclature.</p>
<p><a href="http://drwxr-xr-x.org/posts/2019/11/forms-of-life-part-1-overview-of-biological-taxonomy/">Read more…</a> (8 min remaining to read)</p></div>biologybionomenclaturegeneticsnotesreferencesciencetaxonomyhttp://drwxr-xr-x.org/posts/2019/11/forms-of-life-part-1-overview-of-biological-taxonomy/Fri, 08 Nov 2019 17:05:08 GMT
- Sunday Maths: Simplifying Squareshttp://drwxr-xr-x.org/posts/2019/11/sunday-maths-simplifying-squares/Dylan Leigh<div><p>This is a simple method to make it easier to calculate squares in your
head (or on paper). The key is the following equation:</p>
<pre class="literal-block">
x² = (x+y)(x-y) + y²
</pre>
<p><a href="http://drwxr-xr-x.org/posts/2019/11/sunday-maths-simplifying-squares/">Read more…</a> (1 min remaining to read)</p></div>algebraarithmeticcombinatoricsmathematicsmental mathsciencehttp://drwxr-xr-x.org/posts/2019/11/sunday-maths-simplifying-squares/Sun, 03 Nov 2019 04:49:23 GMT