Become-ing a user securely in Ansible
Using become_user in Ansible requires the acl package to be installed on the remote host. This is a note to my future self, reminding me of the error, the r...
Recent posts
Private areas in Jekyll with Apache
Jekyll-built static sites are public by default. However, have you ever wanted to create a private area where you can upload articles for review and keep th...
Action of a simple harmonic oscillator
What’s the action of a simple harmonic oscillator? And how does this change depending upon the path? Some mates of mine and I worked through this recently....
Towards an intuition for the simple harmonic oscillator solution
The solution of the differential equation describing simple harmonic motion is often presented as-is, or “handed down from above”. Usually, there is no atte...
Of sines, cosines, and phase shifts
An alternative form for the solution of a simple harmonic oscillator caused some short-lived confusion and consternation. Resolving the conflict turned out ...