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• How would the world(and history) look if USA never existed?

  Asked by Christian95 | 41 responses

• Might fractal geometry finally reconcile general relativity and quantum theory?

  Asked by Zuma | 41 responses

• What kind of schools could I get into?

  Asked by Parrappa | 9 responses

• Who knows how to make a quick and easy rube goldberg project?

  Asked by pterodactylover808 | 16 responses

• Will this experiment work or not?

  Asked by iRemy_y | 10 responses

• I would like to create a useful Smartboard application- any suggestions?

  Asked by pallen123 | 8 responses

• What theories are there to show there are not hidden variables in quantum mechanics?

  Asked by hghgbvvn | 6 responses

• What kind of small toys or devices click when you rotate them forwards and backwards? Seeking mechanism or design...

  Asked by pallen123 | 10 responses

• CERN has finally activated the Large Hadron Collider. Celebrate here.

  Asked by dpworkin | 76 responses

• "Consciousness is an awareness of existence. I am aware that I exist. My question is "Where do I exist?"?

  Asked by Pazza | 22 responses

• How do I calculate capillary entry pressure for a given pore width and and a known surface tension?

  Asked by timothykinney | 8 responses

• Can you help me understand aerosols (see details)?

  Asked by Harp | 21 responses

• Is there a webpage that defines current volt amp charge ohm and similar words in one page?

  Asked by hiitisit | 2 responses

• How can i measure the acceleration of wooden cars being rolled down a hill?

  Asked by iRemy_y | 15 responses

• How to work out the conductance of a wire?

  Asked by Meagainandagin | 4 responses

• Does an X amount of space have a maximum mass?

  Asked by doggywuv | 14 responses

• What problem in physics would you like to be solved?

  Asked by Meagainandagin | 7 responses

• Question about the oscillatory universe theory.

  Asked by jaketheripper | 8 responses

• How much do you think we know about physics?

  Asked by Meagainandagin | 28 responses

• What happens with the energy in you after you die?

  Asked by Christian95 | 39 responses

• What are the implications of the brain making decisions rather than consciousness?

  Asked by nebule | 29 responses

• Can someone explain to me what's the thing with surface normal and friction force?

  Asked by Christian95 | 7 responses

• What do you think about Joao Magueijo's variate speed of light concept?

  Asked by Christian95 | 10 responses

• Please explain string theory in laymens terms.

  Asked by Menekali from iPhone | 20 responses

• Did I just think of a perpetual motion device?

  Asked by jackm | 20 responses

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