Currently unanswered questions

  1. Does caffeine affect  boys and girls' blood pressure differently? (more)
  2. Recently I read that U.S. scientists say the ozone layer is shrinking over Antarctica. I would b...(more)
  3. We know that cosmic microwave background is 2.725 kelvin. We know universe was some 13Billion yea...(more)
  4. Will sodium or ammonium nitrate react with hydrogen sulfide ? If yes, what are the expected reac...(more)
  5. If we assume that Whitten's new Twistor String Theory is correct, with no real extra demensions, ...(more)
  6. Why can't humans listen to two things at the same time and get all the information for both? (more)
  7. What is the chemical process of making Cocodimonium Hydroxypropyl Hydrolyzed Wheat Protein? What'...(more)
  8. How can I determine the size and configuration of magnets required to hold together two 500gm obj...(more)
  9. I understand that cancer is caused by mutations in some of the genes that regulate cell growth an...(more)
  10. If mini black holes would be produced at Cern (LHC) and in ultrahigh energy cosmic rays hitting t...(more)
  11. I'm wondering if I have a tube filled with argon gas, or some other inert gas, and heat up a fila...(more)
  12. I need to know what dissipates into the air during a salt analysis titration. I do this at work w...(more)
  13. Have you ever hit the top of a glass juice bottle with your fist. It makes a very loud cracking s...(more)
  14. A student gave me 4 pairs of different duck and goose feet. How can I preserve them? Do I dry the...(more)
  15. how will Hydrogen work as an Assist Gas for Diesel Trucks (Transportation Industry). After doing...(more)
  16. Why does light degrade vitamin C? (in juice or liquid form) (more)
  17. I am doing a research project on the strength of different batteries. Is there a cheap way to te...(more)
  18. Are there any solutions that change their pH level from neutral to 8.5 or higher due to the tempe...(more)
  19. Can any force be enacted upon a perpendicular slice of air molecules to attenuate the propagation...(more)
  20. In the field of shape recognition, is there a way to register a single frame, such as the outline...(more)