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View Full Version : Brain Teasers

  1. Virtual Experiment for every new member
  2. Brain Teasers
  3. Door #2 or door #3?
  4. Envelope 1 or 2 ?
  5. floating object
  6. Disease
  7. Feynman Brain Teaser (Sprinkler)
  8. physic help
  9. throwing to the west
  10. Stand off
  11. YES OR NO
  12. Relativity of time problem
  13. Why not Antennas for Photons?
  14. How can you tell if a signal is completely random?
  15. Relativistic Speeds on Earth?
  16. Three-Dimensional Resistance
  17. Only a Sly Fox could interpret:
  18. a question of light
  19. help with physics problem
  20. Circle with a line through it
  21. Jokes and jokes and jokes
  22. Better Joke
  23. Problem #1 - Spherical Aberration
  24. Strange Model
  25. another virtual experiment
  26. Measuring wavelength of infrared rays
  27. Challenge 7 Distinguishing two nearly identical spheres
  28. cool reflections in a puddle why?
  29. temperature of two spheres?
  30. Antimatter hijinks
  31. What happened to mhy STR Topic?
  32. The end of time? Brain teaser
  33. Break the paradox #1
  34. unstopable , unbreakable
  35. donuts are forever
  36. Who am I riddle.
  37. all about sound
  38. Basic Physics
  39. Just doodling
  40. Light and Destructive Inteference ...
  41. Oscillating Ball in Plughole
  42. Energy problem with a twist
  43. Would you float in the middle of the earth?
  44. triangle madness ??
  45. Atlas' Struggle
  46. Planckian fun
  47. Thermal expansion
  48. Calculating the width of an alley
  49. Orbital transfer energy requirements
  50. lateral thinking puzzle 1
  51. lateral thinking puzzle 2
  52. Which Way Will It Go?
  53. Prevention of Invasions of Ants!
  54. Balls of water
  55. Light interference
  56. This should keep you lot busy for some time!
  57. Dirty Eyeglass Challenge
  58. The deceleration of light due to the suns gravity..
  59. The Sound of Water
  60. Tamiya 4WD
  61. inspector Colombo
  62. Gyroscopic forces
  63. On the independence of events on a roulette wheel
  64. LOAD Resistor in a MOSFET AMPLIFIER
  65. Spherical Logic?!?
  66. Inverse Square Law
  67. Zero Kelvin
  68. Refrigerator without electricity
  69. Dont call me stupid for this one..
  70. Easy Riddle
  71. Who can solve this quesiton?
  72. Knowledge or Imagination?
  73. Rotation without external angular momentum
  74. Find The Ace
  75. mental aerobics sort of a game (free)
  76. Field Artillery - Effect of earth's rotation
  77. Alternate Dimensions?!?!
  78. Ecommerce host
  79. mental aerobics x200, free strategy game
  80. 2 years old
  81. Thompson's lamp
  82. Another lamp riddle
  83. River crossing
  84. exothermic or endothermic??
  85. Measure your Nanotechnology I.Q.!
  86. Over your head ?
  87. Shout the moon
  88. Where did it go?
  89. Here's one that'll stump even the best of you.
  90. Who is he?
  91. Space Race
  92. Show: Numb3rs
  93. gimme my penny!
  94. I lost my Pe
  95. concrete road
  96. stupid question...
  97. help
  98. Baffled by a Candle
  99. Nine silver coins...
  100. Gravity teaser
  101. I am invlolved in a game...
  102. Super Problem (Optics)
  103. Wanna play a cosmic game?
  104. Help please
  105. very tough problem
  106. Hydrostatics Problem
  107. Greatest brain teasers/puzzles
  108. 2=1 ?
  109. and the number is .......
  110. Aristotle wheel paradox
  111. Can anyone tell this
  112. Greater than speed
  113. measurable dimensionless parameters
  114. Proud that we are still here
  115. Guess the equation game!
  116. perpetual motion device
  117. ant in a cubic room
  118. help please
  119. Help on a phypothesis of gravity etc
  120. Nerd Sniping brain teaser...
  121. Brain exercise...
  122. Refractive index brain teaser
  123. Volume of a truck
  124. Back to the Basics & TOE
  125. Motion
  126. Einstein's Puzzle
  127. 5 Easy riddles.
  128. How on earth can anyone deny the MATH ? ?
  129. Train Riddle
  130. Please help! Reversed spectrum through prism?