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physics

Physical principles governing light refraction and dispersion

EducationWhy Convex Lenses Disperse Light Less Than Prisms

Exploring shape and design factors that cause convex lenses to disperse light less than prisms despite both refracting light.

8 answers• 1 view
HealthSafer Landing Surface: Metal Car Roof vs Asphalt for Falls

Comparing metal car roofs and asphalt for falls from 13-17 feet. Physics of impact, force distribution, and injury analysis for safer landing surfaces.

4 answers• 2 views
EducationScientific Definition of 'Up' and Its Relationship to Gravity

The scientific definition of 'up' as the direction opposite to gravity, explaining why this directional relationship is fundamental to physics and everyday experiences.

3 answers• 2 views
EducationPhysics Practice Test Passing Score: 23/39 Analysis

Discover what counts as a passing score on physics practice tests (typically 60%+). Analyze 23/39 (59%) against classroom, AP Physics, Regents, and Praxis standards. Tips to improve your physics test performance and grading curves.

6 answers• 2 views
EducationWhy Time Doesn't Exist: Physics, Entropy & Emergence

Explore why physicists argue time isn't fundamental. Clear overview of relativity, quantum gravity (Wheeler-DeWitt), entanglement, entropy and emergent time.

1 answer• 2 views
ProgrammingUnity FPS Controller: Kinematic Rigidbody Grounding

Guide to implement a kinematic Rigidbody Unity FPS controller that stays grounded with robust ground checks, averaged normals, and snap-to-ground tuning.

1 answer• 2 views