g = 9.81 m/s²Pendulum · drag to pull
T = 2π√(L/g) = 2.20 s

GullyLearn

School is a lecture. The street is a lab. STEM sticks when you break it first — with real formulas, not certificates.

Attempt before you're taught

Short it. Then ask why.

Coursera gives you a module. We give you a circuit you can ruin. Slide the resistors — Vout is Ohm's law, not a screenshot. Fail on purpose; the explanation arrives when it hurts enough to stick.

Vout = Vin · R₂ / (R₁ + R₂)
Lab · Circuits 04Ohm’s law live
Vout = Vin · R₂/(R₁+R₂) = 9.0 · (1kΩ)/(1kΩ+1kΩ) = 4.50 V
GullyLearnA thesis on learningp. 01

Learning is not the acceptance of what is handed down. It is the slow, stubborn act of finding out — for yourself — how the world actually behaves.

Our thesis

  1. Hard, on purpose

    Learning should be hard. Not cruel — hard the way lifting is hard. If it never resists you, nothing in you changes.

  2. Failure is the curriculum

    Lots of failures. Not as a slogan — as the method. Each wrong attempt is a measurement. Without them, you only memorize the answer key of the universe.

  3. Open doors

    Accessible. Transparent. No gatekeeping behind jargon. We teach the thing itself — not the academic costume the thing wears.

  4. Despite English

    It should not require English as the main language. Learning happens despite language, not because of it. Diagrams, motion, trial — the universe does not speak in essays.

  5. Fun to do

    It should be fun to do — not fun to learn. The joy is in the doing: pulling the pendulum, shorting the circuit, throwing the chalk. Entertainment is not the same as understanding.

  6. Oh yeah — that’s how it is

    When it lands, neurons strengthen. You feel it: Oh yeah, that’s how it should be. Not because someone declared a universal truth and told you to accept it — because you wrestled it into place yourself.

  7. Observe. Challenge. Experience.

    Learning is observation and challenging everything. To understand how our universe works — through experience, through trial and error.

This is our thesis. Fail with a reason. Measure what broke. Try again.

— GullyLearn
Against the catalog

We're not another Coursera.

Catalogs optimize for watching. Streaks optimize for dopamine. We optimize for attempts you can measure — then take outside.

Them

  • Browse → watch → quiz → certificate
  • Wrong answer = red X, move on
  • Badges, leaderboards, streak shame
  • “Where will I use this?” forever

GullyLearn

  • Attempt → fail → measure → retry
  • Wrong answer = a branch with a reason
  • No badges. Progress like a step count.
  • Projects that leave the screen
Kinematics you can throw

Predict. Then throw.

Dashed path is the equation. Cyan trail is what actually flew. If they disagree, your intuition was wrong — and now you know by how much.

R = v₀² sin(2θ) / g
Lab · Projectile 02Kinematics
Predicted range R = v₀² sin(2θ)/g ≈ 14.68 m · t ≈ 1.73 s
Leaves the screen

Homework that needs a doorway.

Physics

Time a real pendulum

Predict T from L. Hang string in a doorway. Off by how many ms?

Math

Height from shadow

Similar triangles. No tape measure. One stick, one shadow, one building.

Circuits

Measure a divider

Two resistors, a 9V, a cheap meter. Does the street match the lab?

Early user

Lock the price. Break things first.

$10 / year for early users — full access when labs open. No card now. We email when your spot starts.

No card · no spam · just the unlock mail