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physics

Scientific discipline dealing with matter, energy, and their interactions

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• 1 view
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• 1 view
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• 1 view
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• 1 view