I have an old stable internal server that’s running CentOS 5.10 which I want to use a staging/development server for modern node.js applications. The problem is, current prebuilt versions of node.js can’t be installed on CentOS5, since CentOS5 has GNU libc 2.5 and the prebuilt node.js RPMs are only for Fedora/RedHat/CentOS 6, and are linked […]
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Installing node.js 0.10 on CentOS5
09-May-14Chemical Structure QR
24-Apr-14Getting from a printed chemical structure to a structure database is slow and painful. Every printed chemical structure should include a Chemical Structure QR Code with the InChIKey for the compound.
Workcation
01-Mar-14I’m starting a week-long work block today — that is, I’m planning to work from 5AM to 5PM straight every day, like a “normal person”. Danielle has graciously consented to spend one week of her vacation doing everything else that needs to get done. Since last week we had a “stay-cation” where we went out […]
Books I recommend to everyone
07-Feb-14My friend Evan asked about design books and I spouted off a few – including The Systems Bible, which I now feel guilty about, because it’s not strictly a design book. I included it because it talks about how system design fails, and it’s humorous and I think teaches some larger truths. It was originally […]
Someone on #node.js wanted his script to pass a command-line option on the node shebang line. When I suggested he use the “-x” hack…
Teaching Editing and Dictation
15-Jan-14The day before yesterday we practiced editing and dictation (#4 and #3).  For editing, I found an essay online that Kaija wouldn’t hate to read (it’s about Pokemon).  I asked her to read it out loud to me.  Afterward, we went over it with a highlighter and pen and I summarized each paragraph in a single sentence and […]
Learning By Breaking It Down
14-Jan-14When learning how to do something, it helps to break it down to irreducible subtasks. As an example, we homeschool our kids; my eldest daughter Kaija is 5th-grade age. Â We want her to practice writing simple paragraphs as a stepping stone to essays. Â But asking her to just “write a paragraph” can be overwhelming, because […]
Dim Glimmers of Light
03-Dec-13A lot of change this year. At the beginning of 2013 I said ‘goodbye’ to a longtime client (15 years). Â It was time, and past time. Getting all my stuff sorted out and handed over took a while: I planned three months, it took only two, so I picked up and knocked off one more […]
Software <-> Politics
19-Jun-13Here’s an analogy that came up this morning. Liberals (Democrats) are like new CS grads. Â They are excited about writing new code (laws) and disdainful of the negative predictions others make based on their hard-earned experience (believe in the perfectibility of people/software). Conservatives are like grim old maintenance programmers. Â They have seen fads and standards […]
Less Fatal: Peptic Ulcer
07-Jun-13People don’t die of peptic ulcers so often anymore. Â Here’s a nice picture: Relevant dates include 1982, which is when Marshall and Warren identified H. pylori. Â It gets a bit steeper after 1994, when the CDC starts promoting antibiotic treatment of peptic ulcer disease. Â By 2005, when Warren and Marshall receive the Nobel Prize, it’s […]