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Interactive
The Forge
4 posts
How a reverse shoulder cheats physics — an interactive explainer
Why putting the ball where the socket was lets a torn-cuff shoulder lift again. Toggle the geometry and watch the deltoid's moment arm grow.
Glenoid version, in your hands
Why a few degrees of retroversion matters — with a baseplate you can tilt yourself. Drag the sliders and watch the failure risk climb the curve.
Your femur is hollow, and it did that on purpose
A long bone resists bending far better than the solid rod it could have been — at the same weight. The reason is geometry, not material, and the skeleton w
Your screen is lying about colour, and that's the clever part
A phone screen has no yellow pixels, yet shows you yellow. That isn't a cheat — it's additive RGB and the quirks of your own eye, doing exactly their job.