Designing a test for your claim.
BIG QUESTIONS. SMALL EXPERIMENTS.
A little doubt.
A new discovery.
Test your everyday intuitions with interactive experiments and an AI lab partner.
Bring a hunch. See what happens. Learn something new.
What will happen?
Follow the energy.
A perfect undo?
EXPLORE OUR EXPERIMENTS
Start with
a little doubt.
Everyday intuitions can be surprising. Choose an experiment to see what really happens.
Curiosity looks good on you.
YOUR CURIOSITY STARTS HERE
What do you
think is true?
Type a hunch, add a photo, or sketch your idea. We’ll help you turn it into an interactive experiment.
Curious ideas lead to real experiments.
Teaching a class? Plan a lessonYour draft stays here when you go back.
WHAT WE SEE
Image ready for interpretation.
The interpretation is editable in the claim above. Build when it matches what you meant.
NEW EXPERIMENT
Your idea is becoming an experiment.
Make a fresh prediction when your new lab is ready.
PHYSICS
Does heavier mean faster?
- 01 Predict
- 02 Explore
- 03 Rethink
Different masses.
Will you get your money back?
Ready when you are.
Choose a prediction to bring this experiment to life.YOUR NEXT EXPERIMENT
Building your experiment
Turning your question into something you can test.
You can return to your current experiment at any time.
↕ Drag the height handle, release, and watch them fall.
What do you expect to happen?
Measurements show the final result. Playback changes only the view.
Conditions & assumptions
CHANGE ONE THING. NOTICE THE DIFFERENCE.
Your what-if comparison
A Pinned baseline
B Current conditions
Change a control above to test another condition.
FOLLOW YOUR NEXT QUESTION
“But what if…?”
Existing controls update immediately. New ideas are built, tested, and reviewed before they reach the workbench.
Experiment notebookBuilt-in reference
Execution checks test the code. Model review checks consistency; neither makes a simulation real-world proof.
Read the experiment code
KEEP YOUR CURIOSITY GOING
Return to a familiar experiment or revisit a question you built.
Your experiment shelf
Saved in this browserSTART WITH WHAT YOUR STUDENTS THINK
One topic. A few good questions.
Bring a teaching brief or a screenshot. Find a belief, then build an experiment around it.
01 · YOUR TEACHING CONTEXT
Plan a lesson
PNG, JPEG or WebP, up to 12 MB. Images are sent to OpenAI for interpretation.
Review the editable fields below before finding experiments.
AI planning uses your configured API key. Reference experiments are available below.
OR, START EXPLORING
A place to test an idea.
Original reference models with checked calculations. Open one without an API key.
02 · CHOOSE A BELIEF TO EXPLORE
Your experiment ideas
These are possible beliefs to investigate. Edit a claim to match your class, then build and check its experiment.