diff --git a/🧠-Educational.md b/🧠-Educational.md
index e7b6560f..cf33128a 100644
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 * [Quantum Web Directory](https://qntm2017.github.io/qntm/OV.html) - Science / Tech / Math / Physics
 * [Interactive 4D Handbook](https://baileysnyder.com/interactive-4d/) - Interactive Fourth Dimension
 * [Ray Optics Simulation](https://phydemo.app/ray-optics/) - Light Reflection / Refraction Simulator
-* [Compare Pendulum](https://www.myphysicslab.com/pendulum/compare-pendulum-en.html) - Pendulum Simulator
+* [Compare Pendulum](https://www.myphysicslab.com/pendulum/compare-pendulum-en.html) or [DoublePendulum](https://theabbie.github.io/DoublePendulum/) - Pendulum Simulators
 * [OpenFoam](https://openfoam.org/), [PC Progress](https://www.pc-progress.com/), [Fluid Simulation WebGL](https://paveldogreat.github.io/WebGL-Fluid-Simulation/), [WebGL Fluid Experiment](https://haxiomic.github.io/GPU-Fluid-Experiments/html5/) or [Sim Flow](https://sim-flow.com/) - Fluid Dynamics Simulators
 * [SimScale](https://www.simscale.com/) or [CFDTool](https://www.cfdtool.com/) - Fluid Dynamics & Heat Transfer
 * [Bouncy Balls](https://bouncyballs.org/) or [Balls Simulation](https://phydemo.app/balls-simulation/) - Ball Physics Simulator