Plain-English guides to budgeting, selling online, ChatGPT dots, Godot 4, teaching computing history and the engineers of the 1950s. Every example uses real numbers.
What a dot is, who can get one, the Custom Rules to set first, and ten careful first jobs with sample instructions.
9 min readA term-long unit for ages 11-14 in four blocks, each lesson with a free video and a paper activity. Lesson 1 free.
7 min readNils Bohlin, Volvo's 1959 design, why the belt is fixed to the car and not the seat, and what the numbers really say.
6 min readSeat belts, ultrasound, pacemakers, solar cells, clean water, fibre optics, the laser and more, with careful credit.
10 min readIdle, Move and Dash in plain GDScript, plus a crash-safe JSON save. Code tested in Godot 4.7.2.
8 min readThe same three sales on four platforms, worked out, plus the price you need to keep $20.
5 min read$3,600 given a job down to the last dollar, what happened when groceries ran over, and the two formulas you need.
6 min readFour debts, $695 a month, two methods. Avalanche saves $164.70; snowball gets a win three months sooner.
5 min readSelf-employment tax, quarterly due dates and a simple 25% habit, with a worked example.
6 min readWhat you keep after PayPal, Payhip, Ko-fi, Gumroad, Etsy or Fiverr fees, and what to charge to hit your target.
Free tool