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- 1Hackaday Explores the Math Behind 3D Graphics Perspective●The Deep Magic of 3D Graphics Perspective https://hackaday.com/2026/09/29/the-deep-magic-of-3d-graphics-perspective/ # G
Hackaday has published a new article examining how perspective projection works in 3D graphics, walking through the underlying mathematics that make three-dimensional scenes appear correctly on flat screens. The piece, tagged under graphics, 3D printing and programming, breaks down the projection techniques used by developers and hobbyists working in rendering and 3D printing workflows.
- 2Testing Coulomb's Law at Home Stays Surprisingly Hard●Testing Coulomb's Law and Similar Fundamentals Yourself Remains Tricky https://hackaday.com/2026/09/29/testing-coulombs-
Hackaday examines why independently verifying Coulomb's law and other basic physics fundamentals remains genuinely difficult for hobbyists, despite the experiments seeming simple on paper. Precision instruments, stray charges and environmental interference make reproducible results elusive. The piece argues that hands-on verification of foundational science is harder than textbooks suggest, a point drawing interest from the amateur science and education community.