Author: RTNM

10958 is a Hard Problem!

10958 is a Hard Problem! I was talking to my nephew Jack-Jack the other day about the 10958 Ascending debacle.  If you are unfamiliar with it, check out my post from 10/21/19.  It is a nasty little piece of ostensibly simple math. Jack-Jack and I were trying to find an answer to the 10958 problem […]

Stu

One day when I was a graduate student at Harvard, I was given a sheet of paper, just a single sheet.  On this page were examples of common grammatical mistakes that we were to avoid at all costs.  There was a short paragraph about the difference between their, there, and they’re.  It was that kind […]

Legos for Adults

Legos for Adults I made it through high school and my undergraduate degrees without ever using a PC.  How is that?  They were rare, few people had them.  If I recall correctly, I didn’t even see a PC until I was at Harvard. I arrived at Harvard in 1986, typing my papers on a typewriter.  […]

Bonus Eruptus Redux! A Few Thoughts on COVID-19 Testing

Bonus Eruptus Redux! A Few Thoughts on COVID-19 Testing SARS-CoV-2 is the virus that causes COVID-19.  For what it is worth, SARS-CoV-2 stands for severe acute respiratory syndrome coronavirus 2.  This post is not about the virus, it is about the mathematical and probabilistic problems the virus presents to those who wish to test for […]