View Full Version : Physics

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  1. What choice do we have?
  2. what is a newton meter?
  3. How could Velostat made by 3M/Electrical Conductive Sheets shield electric fields?
  4. Are dimensions real, or just our way to describe what we experience?
  5. Quantum Mechanics | A few questions and proposal
  6. quick question
  7. Could Photons Be Used to Build Something?
  8. 23kHz Acoustic Sound Wave
  9. Coronal Mass Ejection - Effects on Us
  10. What indicates if object will be reflected - certain example
  11. What cause electric discharges around charged object (like generator)?
  12. Terminal Velocity?
  13. Smallest object with a disproportionate weight.
  14. I need a way to block Ultrasound Frequencies between 19-800kHz, as well as radio frequencies via helmet?
  15. Gravity Affect on Time
  16. The Uncertainty Principle
  17. The interior of a Proton (as an example)
  18. Mass number & density question
  19. Use the lens formula to show that f^2 = ab
  20. Calculate the threshold wavelength of the metal
  21. Deflection of light in classical physics
  22. Does global pull of a body vary with distance?
  23. Non-Circular Wheel vs. Circular Wheel
  24. Dimensionality of Light and Shadow
  25. electrostatic solid switch question
  26. Does Energy Affect Gravity and the other way around?
  27. Deflection of light
  28. General word for content of the universe?
  29. What materials if any are difficult for ultrasound to travel through!?
  30. Bubbles
  31. Physics Question | If we knew exactly how the Universe worked couldn't we predict it's future
  32. Friedmann cosmology for the layman reader
  33. Speed of light constant,or avarage speed of light constant,or both ?
  34. Which is better for an Ultrasound proof hat(.2-8.0kHz, 135-140dB) Polymethylmethacrylate or Polycarbonate, and how thick must the helmet be?
  35. Our Range to E.T.
  36. Photons and E=mc2?
  37. the Uncertainty Principle
  38. Issue with Maxwell equations
  39. A Question about Positive Lightning
  40. Expanding universe breaks the laws of physics?
  41. Galaxies Travelling Faster Than the Speed of Light?
  42. Absence of time
  43. Reflection of sky mirage on a hot road
  44. Gravity Effects
  45. The Speed Of Light Might Be Wrong
  46. Twin paradox
  47. DB Level?
  48. Grassman variables for Hamilton cycle problem?
  49. Recommended Introductory Book
  50. Is Microwaved Food Bad For Your Body?
  51. car crash
  52. Age of the U
  53. Ferromagnetic Plate B-Field Definition Question
  54. Finding the x and y components
  55. Does a Higs Boson particle have mass ?
  56. Quantum causality
  57. Particles of Matter
  58. how do you get supplies from a stationary space elevator while your spacecraft is orbiting the Earth at orbital speed
  59. shooting on a motorway
  60. Position in the universe?
  61. molucular motion at absolute zero
  62. A new type of thermoelectric generator
  63. Energy
  64. How do Proteins move?
  65. space and gravity in relation to planets
  66. Time Dilation in Objects in Relative Rotation
  67. CMB redshift
  68. Why is the double slit experiment seemingly a mystery?
  69. Atom
  70. Theories explaining creation of the universe.
  71. transreceiver manufacturing
  72. Difficulty separating this heterogeneous mixture in water
  73. Why is the direction of torque perpendicular to the direction of force applied?
  74. The First Atom Successfully Teleported!
  75. Light blueshifts : freq. shorter, and amplitude ?
  76. Temperature and Blackholes
  77. Is combustion endothermic, too?
  78. Latest Paper by T. Padhmanaban may 2014
  79. Unlimited bandwidth with twisted radio waves?
  80. Negative Energy Proven? Hoax?
  81. physics and astronomy
  82. I don't understand how a lever works
  83. The physics of car jumping
  84. Magnetic Questions
  85. All Motion is Relative?
  86. capacitor throught experiment
  87. Question: light speed in airplane vs outside airplane
  88. Creating matter from light
  89. high frequency sounds
  90. Optic Fibre Cables
  91. Speed of Light. Please HELP my argument
  92. Interaction between real particles and virtual particles
  93. sound of breaking brick
  94. Ideal frequency for cell phone communication
  95. Ice. Less energy = more order
  96. Incorporating dark matter/energy into Einstein's field equations
  97. About Light
  98. What is Light made of?
  99. What is the fastest speed a spaceship could possibly go?
  100. Light-matter interaction
  101. Acceleration question
  102. A Forever Expanding Universe - Our Point of Reference?
  103. Lorentz transformation derivation.
  104. what is the fastest possible thing?
  105. New state of water
  106. This is a general problem from "Fundamentals of Physics". Can anyone solve it?
  107. How do we prove maximum acceleration in vertical SHM is equal to g?
  108. Why is acceleration inversely proportional to the mass?
  109. Anti-Gravity or Gravity Nullification
  110. correction
  111. is the speed of light fully covariant
  112. is a point in physics a fermion or a boson ?
  113. How much mass does an object need to acquire an atmosphere?
  114. Identifying a term
  115. The easiest to understand abstract of a scientific paper - EVAH.
  116. Covariant Electromagnetism Primer
  117. Tilting a spinning wheel
  118. Quantum physicists propose time emerges from quantum entanglement
  119. About absolute zero
  120. Electromagnetic absorption
  121. Calculating a charge in a gravitational field using total relativistic format
  122. Does gravity create endless energy?
  123. perfect dielectric
  124. Blackholes exploding?
  125. the train and tunnel paradox
  126. Questions about Gravitons
  127. Cute little applet from cal tech about the field of a moving charge
  128. Does the expansion of the universe create endless energy?
  129. Solar cell around the earth.
  130. Parallel axis or Huygens–Steiner theorem
  131. The Big Bang
  132. Photons Behaving As a Wave
  133. Complementarity with single slit diffraction
  134. Spontaneous Emergence of the Universe
  135. Point Particles
  136. Electron electric dipole magnetic moment
  137. what if the big bang consisted of enough energy to make the universe
  138. Dirac on sub atomic particles.
  139. Heat Death/Black Holes
  140. Another stupid question..
  141. Electron shell
  142. The speed of light constant
  143. Mbemba effect
  144. How ships and planes work?
  145. Some questions on astrophysics...
  146. spacetime curvature and weight
  147. How ions conduct electricity in air?
  148. Theory of Inflation
  149. buoyancy
  150. Is the whole Energy (+mass) of the universe constant?
  151. The composition of the Universe
  152. Need help for science project!
  153. Is gravity 100% efficient?
  154. Help...again
  155. Atom in 4 spatial dimensions
  156. A spinning magnet in vacuum
  157. Relative size and understandings
  158. Calculating radioactive transmission in mixed materials
  159. How much downward force does an average person exert upon the ground when they jump standing still?
  160. Please stop saying that during the inflation period the universe expanded faster than light. Just please
  161. is possible to create shield like in 2007 movie Sunshine ?
  162. Newton's 2nd law for open mass systems
  163. Charge produced at the end of an insulated conductor rod using electrostatic induction
  164. Practical uses for formulas
  165. H mode, ITER, neutrons
  166. QM explanation
  167. String theory question...
  168. instanous velocity elastacity
  169. Does red shift ...mean the Universe is really increasingly expanding?
  170. Light is infinitely young?
  171. Woah, any help?
  172. Help with relativity!?!
  173. The Universe and a quark
  174. Electron magnetic dipole moment
  175. Using electrolysis in scuba diving
  176. quantum arrow of time
  177. Negative mass and gravitation
  178. Linear alternator
  179. Question about Dark Energy
  180. prism light-box head-scratcher
  181. Question of sound energy
  182. Spacetime - A Primer
  183. The Big Rip
  184. Huge Amounts of Energy
  185. Expanding Universe
  186. Black holes not pathways
  187. The threshold for superposition collapse in double-slit experiment
  188. What happens when various radio waves interact with the ionosphere?
  189. What effect does earth's Magnetic Field have on electromagnetic radiation?
  190. H fine structure
  191. Water velocity near a charged object.
  192. Does electrical field affect the plasma?
  193. Cores of plantes
  194. What factors could change electrostatic force?
  195. Quick question.
  196. Quantum Electron Speculation
  197. Is magnetism less fundamental then electricity?
  198. Tesla coil
  199. shootiing an electron
  200. Gain Energy from any temperature?
  201. Einstein's obsessed question;
  202. publishing under a reputable journal of physics
  203. Relativistic KE
  204. Hydrogen atom
  205. heat question
  206. Hitting the light speed breaks.
  207. Heat conduction in space
  208. Electric Field
  209. Electrical potential
  210. Why is anything an Ohmic Device?
  211. "The Theoretical Minimum" from Leonard Susskind
  212. An amplituhedron? QM
  213. A velocity problem from a lamen
  214. Photons and expanding waves of light.
  215. gravitational field of photons/electromagnetic radiation
  216. Just wondering...
  217. Effect on capacitance from stacking materials with different dielectric constants
  218. What is "displacement currents" really is?
  219. How can a grounded conductor repel a charged object?
  220. website good for studying physics/chemistry
  221. Probably a stupid question...
  222. Thermodynamics - superheated state and diagram
  223. Free Energy?
  224. Newb Q: What happens if you push something big in space?
  225. Dark energy
  226. Conformal symmetry group
  227. Walking with coffee
  228. Why does condensation need a surface?
  229. Fun with physics - new edition of the free pdf book
  230. Removing clothing wrinkles using ultrasonics or similar
  231. electromagnet forces
  232. simultaneity and black holes
  233. Moisture content is a (?) variable
  234. Developping a stand up help
  235. Speed of data traveling in relation to speed of light
  236. Question about Twin Paradox
  237. Easy Gravity question?
  238. The Space-Time interval.
  239. Father Son Debate
  240. Photon frequency/wavelength -
  241. 2 equal bodies attract: what happens at close range?
  242. question about star location
  243. Probably a stupid question
  244. What is the difference between a model and a theory?
  245. Working of dry cell battery!!
  246. Universe
  247. Reynolds Number
  248. contain an atmosphere with an electromagnetic field?
  249. Entangled photon and polarizers
  250. Where am I wrong?