Bluebill.net
2025
- Average Cylinder Density
- Exploring how mixing two materials in the same cylinder volume
alters its overall density, and how to calculate the proportions needed
for a desired average density.
2024
- Headlight Distance and Time
- Estimating an oncoming car’s distance, and when to dim your high
beams, by watching when the two headlights become distinctly
visible.
- Solution Dilution
- Calculating how to dilute 45% vinegar down to a safe 10% solution
for a 10 L eco-friendly homemade weed killer.
- TDR and VOD Measurements
- Using time-domain reflectometry and a novel helical cable wrap to
simplify and accurately measure detonation velocity, even in very short
explosive charges.
2023
2022
2021
- Cleaning Thunderbird Linked
to Gmail IMAP Account
- Archiving years of Gmail IMAP emails offline in Thunderbird to
reclaim precious storage space.
- Measurement
Uncertainty
- Exploring how measurement uncertainties combine and affect area
calculations.
- Parts of Hashes and Expected
Collisions
- Generating short, language-agnostic, collision-resistant section
anchors for Pandoc-converted documents using hash-based
identifiers.
- Hindsight
- Automatically record and restore your Ubuntu window layouts across
multiple monitors to keep everything exactly where you left it after
locking and unlocking.
- Extract Email
- Automating the extraction and deduplication of research article
links from Google Scholar and ResearchGate alert emails for a faster
literature review.
- Circle/Ray
Intersection
- A concise, vector-based guide to calculating where a 2D ray
intersects a circle, covering no intersection, tangents, and two-point
solutions.
- Vector Reflection
- A direct 2D derivation of vector reflection that uses the incident
vector as-is, no input negation needed.
- Cribbage Strategies Are Explored
With New Code And New Methods
- Exploring advanced Cribbage strategies with revamped, unit-tested
code and a sleek Click-powered CLI for probability-driven play.
- Configure Git Bash on Windows to
run Make
- Streamlining Python project workflows on Windows by configuring Git
Bash to run Makefiles seamlessly.
- LED Strip
Calculations
- Modeling the spiral wrap of LED strips on a conical “tree” to
calculate the exact strip length and number of lights needed.
- Fuel Tracker
- A lightweight SQLite-powered app to record and analyze fuel expenses
across multiple vehicles over years.
2020
2018
- Python in
an Interactive Docker Container
- Using an interactive Docker container to run consistent Python
environments across machines without local installs.
- Cribbage - Scoring
- A Python-based tool for scoring cribbage hands, covering fifteens,
pairs, runs, flushes, and “one for his nob.”
- Cribbage - Expected
Average
- Calculating the expected average score of a cribbage hand, using
Python to evaluate all possible cut cards for optimal play.
- Automating Borg
Backup
- Automating BorgBackup with Python for seamless, deduplicated backups
to removable USB drives.
- Change
Units in Regression Equation
- Converting a rock strength regression’s mixed‐psi coefficients into
consistent SI (Pascal) units, handling both unit and magnitude
shifts.
2017
2016
Misc
