5 Common Encryption Types and Why You Shouldn’t Make Your Own

This can’t be emphasized enough.  DO NOT try to roll your own encryption, unless you are doing it to learn.  Good solid article, though!

Encryption is frequently talked about in news, but it’s usually on the receiving end of misinformed government policy or taking part of the blame for terrorist atrocities. That ignores just how vital encryption is. The vast majority of internet services use encryption to keep your information safe.

Source: 5 Common Encryption Types and Why You Shouldn’t Make Your Own


A good diagram of (many) battery sizes.  Not even close to ‘All’ but a good effort.  Also a good use of R to generate correct scaled images.

“If parenthood has taught me anything, it’s that when your kid’s toy needs a battery, you will not have the right size. This is a simple fact of life. In the most recent challenge to this pillar of truth, a Gekko toy (from the show PJ Masks , obviously) needed a button cell battery.

Source: A Diagram of All the Batteries

Biases in Project Management and How to Remove Them

Glen Alleman occasionally overdoes the anti-no-estimates rant, BUT he’s bright and systematic.  This is worth reading.

I liked this in particular:

With these business principles of software development and projects in general, we can ask and answer five principles of project success

  • What dos Done look like in units of measure meaningful to the decision makers?
  • What is the Plan to reach done at the needed time for the needed budget, with the needed outcomes?
  • What Resources will be needed to reach Done?
  • What Impediments will be encountered along the way to Done and what are the handling strategies for each impediment?
  • What are the measures of physical percent complete needed to inform the decision makers of progress to plan in order to take corrective or preventive actions to stay on plan?

Source: Biases in Project Management and How to Remove Them

8 Best Backup Software for Mac in 2018 (Free + Paid)

This is a really excellent article from FreelanceSwitch.  I strongly agree with these recommendations!


Your Mac probably contains hundreds of important documents and thousands of sentimental photos. If you don’t have a backup, a single careless moment could lose them all forever. A spill from a cup of coffee, a fall onto a concrete floor, or an opportunistic thief are all enough for your data to be gone for good.

Source: 8 Best Backup Software for Mac in 2018 (Free + Paid)

Fixing a Baritone Tuning Stability Problem

I really enjoyed this article. Solid thinking and a clear exposition of the details.

Innovation Fascinations

How did I get into baritone guitar? I’m not sure I even remember the motivation accurately. I recall wanting to extend the range of tonal possibilities in my music. For those that don’t know what they sound like, the baritone guitar is featured in the solo on Wichita Lineman. It has a very deep, dark, masculine tone, reminiscent of the Wild West. When distorted, the sound is throaty and testosterone-laden, somewhere between the guitar and the bass guitar. It’s a bit like comparing the viola to the violin. You can create ominous, sombre, emotionally-charged melodies with one. They have a way of gently weeping, if coaxed into it.

There is a growing sub culture of baritone guitar players. Some very famous guitar players have recorded with them, yet it’s still a minority interest. Baritone guitars are sometimes difficult to find, choice is limited and the prices are higher, compared to…

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