The equations
you always blank on
won't blank again.
Spaced-repetition flashcards built for thermodynamics, circuits, and fluid mechanics. The algorithm learns exactly where you blank — and drills those gaps closed before finals week.
You studied it.
You just can't recall it.
Passive re-reading creates false confidence. You recognize the equation on the page but blank when the exam timer starts. That's not a knowledge gap — it's a retrieval gap.
The algorithm that
closes the gap.
SM-2 spaced repetition, tuned for engineering equation sets. Cards you miss reappear in 24 hours. Cards you nail space out to 60 days. Every interval is earned.
Five real cards.
Feel the algorithm.
These are actual engineering equations from our deck. Flip each card, grade yourself honestly, and watch the algorithm start building your personal review schedule.
PDF cheat sheets
for every discipline.
Print them, pin them, or load them on your tablet. Every critical equation, constant, and sign convention — organized the way your professor actually tests.
Your weakest equation
is already in our deck.
4,211+ engineering equations. Spaced repetition that adapts to your gaps. A retention curve that climbs instead of decays. Start tonight — the algorithm starts working on card one.