All Stories

  1. The challenge of explaining why
  2. Satellite splat II: an inelastic collision with a surface-launched projectile and the maximum orbital radius for planetary impact
  3. In defense of derivations,
  4. Sampling discretization can lead to strange shapes of data curves
  5. Buoyant beaker balls
  6. Gravitational potential: real-life results
  7. Pressure Change in an Arterial Constriction
  8. MULTIPLICATIVE PROPERTY OF THE EXPONENTIAL FUNCTION
  9. Radial descent of an energetically unbound spacecraft toward a comet
  10. More about the puzzle of a marble in a spinning pipe
  11. Impulse and work for the bullet-block Veritasium video
  12. Entropy change for the irreversible heat transfer between two finite objects
  13. The puzzle of a marble in a spinning pipe
  14. Satellite splat: an inelastic collision with a surface-launched projectile
  15. Negative Work Done by a Person
  16. Activating a radiometer with a hair dryer
  17. The Pursuit of a Plane by a Homing Missile
  18. Identical distinguishable gas particles in the real world
  19. … And hand-cranked induction
  20. Motor Demonstration Using a Hand-Cranked Genecon
  21. Lifting a cup of water with an immersion blender
  22. Dropping a particle out of a roller coaster
  23. SILVERED PING-PONG BALL BOUNCING UP AND DOWN INSIDE A CAPACITOR
  24. Analytically solving Tarzan's dilemma
  25. Oscillations of a quadratically damped pendulum
  26. Mechanical Energy Changes in Perfectly Inelastic Collisions
  27. Complementary curves of descent
  28. The magnetocatenary
  29. Frictional torque on a rotating disc
  30. Rolling friction on a wheeled laboratory cart
  31. Conceptual and laboratory exercise to apply Newton’s second law to a system of many forces
  32. The Physics of Shot Towers
  33. Babylonian resistor networks
  34. Measurement of upconversion in Er:YAG via z-scan
  35. Hanging angles of two electrostatically repelling pith balls of different masses
  36. The Bernoulli equation in a moving reference frame
  37. Rolling the Black Pearl Over: Analyzing the Physics of a Movie Clip
  38. Electrostatic repulsion of charged pith balls hanging from strings
  39. More about the falling raindrop
  40. Sign issues for one‐dimensional vectors
  41. Radial Motion of Two Mutually Attracting Particles
  42. Repairing an elementary explantion of radiation pressure
  43. Chemical potential of one-dimensional simple harmonic oscillators
  44. Comment on ‘The two-capacitor problem revisited: a mechanical harmonic oscillator approach’
  45. Approximation for the Rayleigh Resolution of a Circular Aperture
  46. Optical cooling in Er^3+:KPb_2Cl_5
  47. Internal ballistics of a pneumatic potato cannon
  48. Summer Challenges and Musings about Energy
  49. Author's Response
  50. Defining Work
  51. Thermodynamics of a Block Sliding Across a Frictional Surface
  52. Collision of a ball with a barbell and related impulse problems
  53. Relativistic Effects on Clocks Aboard GPS Satellites
  54. Introducing the exponential function
  55. Energy-based solution for the speed of a ball moving vertically with drag
  56. Accelerating Around an Unbanked Curve
  57. Double-Exponential LR Circuit
  58. A classic chase problem solved from a physics perspective
  59. Inverse Lawn Sprinkler
  60. Author's Response
  61. Radiation thermodynamics with applications to lasing and fluorescent cooling
  62. Work and energy
  63. Another comment on ‘Eccentricity as a vector’
  64. A Primer on Work-Energy Relationships for Introductory Physics
  65. Response to the Letter to the Editor by Carl E. Mungan
  66. Reprise of a “Dense and Tense Story”
  67. Irreversible Adiabatic Compression of an Ideal Gas
  68. Sliding on the Surface of a Rough Sphere
  69. Thermodynamics of radiation-balanced lasing
  70. The Satellite Derotator
  71. Acceleration of a pulled spool
  72. Selecting materials for radiation balanced lasers
  73. Laser Cooling of Solids
  74. Observation of laser-induced fluorescent cooling of a solid
  75. Thermodynamics of Optical Cooling of Bulk Matter