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  1. can anybody solve my problem on space-time
  2. Uncertainty Principle
  3. Why does ice float on water ?
  4. Expanding into annihilation?
  5. Containing the reaction of metallic hydrogen for use as a space vehicle fuel
  6. How dangerous is a TV repeater?
  7. Which component of the electromagnetic spectrum does Communication satalites use ?
  8. how do you spin a wheel with electricity?
  9. Expansion?
  10. Mass-Energy equivalence in SR
  11. A space time experiment . . .
  12. Where's the beef? I mean the mass
  13. Space boundary
  14. Do photon contain/carry more than energy, momentum and angular momentum?
  15. Kinetic energy
  16. Doubly Special Relativity
  17. Physics of Brainwaves
  18. Questions About the Region of Space Occupied by Quarks and Gluons- Shape Probabilities etc
  19. Basic questions about neutrino
  20. Wanting to understand photon emission from an accelerated electron
  21. Magnetic Field Reduction
  22. Optical black holes: "Hawking radiation"?
  23. Electricity generation using lightning
  24. Thermionic converter vs. Ignitron efficiency
  25. its the wiki right? quantum pseudotelepthy
  26. What's beyond the Neutrino?
  27. Why is vacuum suction so darn powerful?
  28. Results of Blackhole's Mass
  29. What's the use for black holes?
  30. Why do stars twinkle
  31. Kinematics - Ball drop problem!
  32. Does spacetime behave like pizza dough?
  33. A catalyst physical action
  34. if you trow a beam from a plane does it fall vertical or horizontal?
  35. Time Dilations for Gravitational Potential and Escape Velocity are Equal?
  36. need help with heat
  37. Escape Velocity
  38. science question
  39. Video Suggestions
  40. How quantum is wave-particle duality of Couder's walking droplets?
  41. dynamics problem
  42. The graviton
  43. Phonons: particle wave duality, relativity as a wave phenomenon
  44. Is a Magnet's Field Attached to It?
  45. Please explain a Higgs Field in spacetime to me and how they can create Higgs Bosons from collisions in Proton Smashers
  46. Usage of a chart for the interaction of mass in a computer simulation?
  47. Help me explain this...
  48. Dumb Question Time Again
  49. resistivity
  50. Would there be less gravity or different gravity if you were to travel to the center of the earth?
  51. Why is the sky blue
  52. Leaping Leptons!
  53. Plz hep,l i dont see how angular momentum is conserved in this case
  54. Covering one's heat signature in space
  55. Dual wings for a flying creature?
  56. Why does this happen?
  57. sailboat paradox and em sail propulsion
  58. How work particle beam weapon ?
  59. Can gravity be affected by surroudings.
  60. one way magnetic field
  61. Linear motor vs. angular motor in space
  62. Has the One-Way Speed of Light Really Been Tested?
  63. Does a super-cooled magnet levitated in a vacuum maintain its temperature?
  64. Gravitational Time Dilation Between Two Masses?
  65. Swinging of a ball
  66. plz help on understanding tides and conservation of energy
  67. .
  68. Effects of Rotation on Independent Movement
  69. Special Relativity Question.
  70. Simpleton's Query
  71. Non powered boat move upstream
  72. are normal and tangential aceleartions perpendicular in an spining tube?
  73. LED's efficiency exceeds 100%
  74. Does a clock in free fall through a gravity potential run faster than a clock held at that gravity potential?
  75. Grade 10 Optics question - Converging Mirrors
  76. Accelerating Protons and Light
  77. Controlled delayed quantum erasure - where is the causality?
  78. Spectral difference between H and H2?
  79. How "real" is gravitational time dilation?
  80. Sport science
  81. Thermal properties of Protium, Tritium and Deuterium
  82. one question i dare not ask my teacher not to look stupid
  83. just a question
  84. Microwave
  85. Is this a DI-TOROID Field?
  86. Would it be Possible to Make Deuterium Oxide Ice?
  87. Sheldon Glashow to retire physics if OPERA test proves accurate
  88. will astronauts in the future be shot to space sunk in breathable fluid?
  89. When Schrödinger's wavefunction reacts on rapid change of potential?
  90. Deposition of radioactive isotopes on solids
  91. forum questions?
  92. polarized glass
  93. Is earth's core an electric turbine for a perspective?
  94. Physics crossword help
  95. I need help plasma physics problem
  96. Wind Power: A source of Energy
  97. The weight of earth.
  98. Exact Solutions of Einstein's Field Equations
  99. Teaching yourself Physics
  100. systems physics
  101. Tube shear strength 6061-T6
  102. From who's perspective do we measure Lorentz Contraction?
  103. n-body problem with coordinate change
  104. What if the Earth's rotation was much faster?
  105. Why do we need Gravitons?
  106. Question about the holographic universe
  107. Question regarding Gravity
  108. [SCHEMATIC] please i need your opinion.
  109. energy question, 100W bulb
  110. energy question, lift 100kg
  111. energy mass ratio
  112. if time is a dimension why isn't light?
  113. just a question
  114. Please Help...
  115. essence of fundamental particles
  116. How are black holes able to move?
  117. Sonic invisibility!
  118. Improved PV cells with carbon nantubes?
  119. Hawking Radiation Constituents Questions (originally posted in general forum)
  120. Proton Nuclear Magnetic Resonance Spectroscopy Introduction
  121. Emptiness of space
  122. Space charge Triboelectricity?
  123. FTL communication
  124. how can i find this difficults geometric relations for dislocations ?
  125. Video on Magnetism in space
  126. Hypothetics: Time and Light
  127. The First Evidence Of The Higgs Boson Particle?
  128. What makes light so special?
  129. Mercury perihelion precission
  130. Wave Function Collapse
  131. Demonstration of temporal cloaking?
  132. Earth movement and physical vacuum energy harness
  133. Train Wheels
  134. The SSC.
  135. The energy in Universe is constant?
  136. Why planets do not go closer to Sun?
  137. What about 2nd law of thermodynamics in Cyclic Universe Model?
  138. Summary of today's Fukushima report
  139. questions on the kinetic molecular theory of gases
  140. Kinetic molecular theory of gases
  141. New Boson Discovered by ATLAS collaboration
  142. Pressure diffusion
  143. video - would this experimental setup detect a potential?
  144. Expanding Universe
  145. Simplifying phisics
  146. Thermodynamical thought experiment with time reversing loop?
  147. How are Headphones able to produce immense sound effects?
  148. Black Hole Location in Universe
  149. Persistent Current
  150. Light Year Calculation
  151. 400 nm laser pumped by HB fusion?
  152. slit screen experiment question
  153. Question on dark energy...
  154. The Universe in different dimensions
  155. black objects
  156. finding the the next big thing
  157. Perpetual Energy- the expansion of freezing water
  158. bohr model: cloud or rings?
  159. Are Weight & Temperature Linked ?
  160. Displacement amplitude of sound wave at minimum audible intensity
  161. Magnetic Field of an electric generator.
  162. What are physicists worth?
  163. Questions about gravity
  164. Close look at the gyro
  165. Time Travel is Imposible
  166. intra atomic space
  167. Addition of extra electrons to the plasma
  168. Forces throughout universe?
  169. Dynamical Csimir effect
  170. exact distance where gravity of earth ends?
  171. what is balancing force in universe?
  172. why sound cant be polarised?
  173. can we go back in time?
  174. Those neutrinos that keep breaking the speed limit.
  175. Faster Than Light?
  176. Heat Dissipation Question
  177. Problem with the constancy of the speed of light.
  178. Ventriloquial Sonic Laser
  179. Repeatable energy storage
  180. Ionization by resonance?
  181. electromagnetic waves
  182. is there any negative / anti -energy? (like matter)
  183. Mass of photon
  184. Vision at the speed of light
  185. light and relativity
  186. On the Origin of "p = mv"
  187. SteveH time machine
  188. Synchrotron radiation equation?
  189. What would happen to light if...
  190. Flywheel Bike:
  191. Solution Manual of Statics, Meriam&Kraige(6th Edition).pdf
  192. what makes buoyancy?
  193. The spring buoyancy
  194. escape velocity for an object on earth
  195. spherical vs cylindrical lens
  196. can shadow be of green red etc colors
  197. coal vs matter
  198. if matter has inertia then what energy has!
  199. intermediate between matter and energy?
  200. How many volts of electricity are needed to ignite a stick of unsalted butter?
  201. photon zero mass and e=mc^2
  202. photon zero mass and e=mc^2
  203. 2 questions on neutrinos
  204. Does water vapor equal the same mass of rain?
  205. has dark matter been proven?
  206. Relativity and time.
  207. pressure problem
  208. Pressure on a lateral side of a tank
  209. Introduction to hydrodymanics?
  210. Steady State question
  211. I'm really curious
  212. Nuclear Equations
  213. mass increase and time dilation
  214. Times of Flight between a Source and a Detector observed from a GPS satelite
  215. Why is time ignored by physics?
  216. A bird flies into a train
  217. Can you move an atom like this?
  218. Confused about black holes?
  219. Propagation of waves
  220. Pressure at points on the same horizontal plane
  221. Entropy versus the cosmological constant
  222. powerful levitation
  223. Thermo equilibrium
  224. Standing waves on a spring
  225. Rotation matrix formulation from 2 angles in the first coordinate system
  226. voltage in a synchrotron
  227. Extreme Levitation
  228. question on archimeneds principle
  229. Vollema Value
  230. Moddeling mass in water
  231. Special relativity breaks down in media?
  232. help needed
  233. Extreme Levitation
  234. TE / TM polarization of a Laser Diode
  235. Atmosphere to a galaxy
  236. the concept of voltage, gravity and Coulomb force
  237. Which factors can influence the signal intensity in MRI ?
  238. Ray tracing a thin prism
  239. question about the uncertainty principle
  240. Еducation - Physics, Chemistry, alternative sources of energy - areas?
  241. elastic collision between equal masses
  242. What are the consequences of this?
  243. Physics question -
  244. Adapted Experiment to decrease errors in measuring Neutrino Speed
  245. gravity on center of the earth
  246. mass = energy. can you determine the absolute value of energy in mass, in one electron?
  247. Calculating A Tachyonic Neutrino Hermitian Langrangian from a Modified Dirac Equation
  248. Doppler effect
  249. can we survive without relativity? is it a worse or a better world, now?
  250. Mass