Notes on Note G
Walking through the first published algorithm, one operation at a time.
Blog
Weaving Algebraical Patterns
What a loom that reads punched cards can teach us about programs.
Poetical Science
Why imagination belongs in mathematics.
Debugging the Difference Engine
A stuck carry, a patch and the stylesheet for the simulator's printout.
Letters to Mr. Babbage
On corresponding about engines that don't exist yet.
Translating Menabrea
Notes from translating a paper, and the notes that outgrew it.
The Science of Operations
Separating what a machine does from what it acts on.
Mechanical Music
Could an engine compose elaborate pieces of music?
Flyology
A childhood plan for a steam-powered flying machine.
On Bernoulli Numbers
Why this sequence makes a good first program.