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Explore interactive ideas in space, science, math, and more. Try a simulation, watch a short video, and follow what makes you curious.
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A collection of small doors into big ideas.
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Moon
Move celestial bodies and scrub through time to connect lunar phases, orbital motion, tides, and eclipses.
Explore hereBrowse all 43 explainers
- The Plane of Focus by Ryan Sael
- Roman Space Telescope, simulated by Konstantin Saifoulline
- Rocket Nozzle Lab by Ryan Sael
- River Bend Lab by Ryan Sael
- Heart Pump Lab by Ryan Sael
- Prism Room by Ryan Sael
- Root Finder by Ryan Sael
- Pendulum Rhythm Lab by Ryan Sael
- Moon by Bartosz Ciechanowski
- Airfoil by Bartosz Ciechanowski
- Bicycle by Bartosz Ciechanowski
- Sound by Bartosz Ciechanowski
- Mechanical Watch by Bartosz Ciechanowski
- Curves and Surfaces by Bartosz Ciechanowski
- Color Spaces by Bartosz Ciechanowski
- Introduction to the A* Algorithm by Amit Patel · Red Blob Games
- Hexagonal Grids by Amit Patel · Red Blob Games
- Making Maps with Noise Functions by Amit Patel · Red Blob Games
- 2D Visibility by Amit Patel · Red Blob Games
- The Evolution of Trust by Nicky Case
- The Wisdom and/or Madness of Crowds by Nicky Case
- To Build a Better Ballot by Nicky Case
- The Magnificent 2D Matrix by Nicky Case
- Basic Probability by Seeing Theory
- Probability Distributions by Seeing Theory
- Bayesian Inference by Seeing Theory
- Why Momentum Really Works by Gabriel Goh
- How to Use t-SNE Effectively by Martin Wattenberg, Fernanda Viégas & Ian Johnson
- A Visual Exploration of Gaussian Processes by Jochen Görtler, Rebecca Kehlbeck & Oliver Deussen
- But what is a neural network? | Deep learning chapter 1 by Grant Sanderson · 3Blue1Brown
- The essence of calculus by Grant Sanderson · 3Blue1Brown
- Linear transformations and matrices | Chapter 3, Essence of linear algebra by Grant Sanderson · 3Blue1Brown
- Why does the Moon change shape? by ExplainerTools Originals
- What makes a photo sharp? by ExplainerTools Originals
- Which pendulum swings slower? by ExplainerTools Originals
- The history of the printing press by Alex Patrascu
- Induction heads in language models by Tiberiu Mușat
- Steve Jobs: an animated life by onur ozcan
- How Shazam Works by Tibo Maker
- How a watermill works by The Bugged Dev
- Ocean waves in 3D by Marco Ludovico Perego
- How a jet engine works by Techartist
- Inside the Raptor 3 rocket engine by Konstantin Saifoulline
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