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• What will the U.S.A. be like in 100 years from now?

  Asked by RayaHope | 31 responses

• When the house is a bit chilly, is it more efficient to raise the temp or sit by the gas fire?

  Asked by janbb | 28 responses

• How many dimensions are observable?

  Asked by Ltryptophan | 12 responses

• Simply and clearly, how does the energy get inside a battery?

  Asked by St.George | 7 responses

• If someone found a black hole, who would you call to test and verify that it really was one?

  Asked by radcliff | 11 responses

• Why E=mc2?

  Asked by Christian95 | 30 responses

• Is there technology that would allow us to use the Earth’s gravity and it’s force to solve the energy problems?

  Asked by Dog from iPhone | 14 responses

• What's better: Paper Towels or Hand Dryers?

  Asked by nzigler | 38 responses

• Besides Time, are there any other truly non-renewable resources?

  Asked by josie | 14 responses

• What is the best thing to do the day after an "all nighter"?

  Asked by Mrgelastic | 32 responses

• Has The Steve Miller Band produced the ultimate Muzak (aka elevator music)

  Asked by rebbel | 6 responses

• Are Christmas lights a threat to our national security?

  Asked by shilolo | 25 responses

• How did your sleep patterns change as you got older?

  Asked by jca2 | 14 responses

• What are some good ways to acclimate to hot weather?

  Asked by laureth | 18 responses

• Can you help me understand my electric bill and possible solar needs?

  Asked by JLeslie | 6 responses

• What are some music groups/artists similar to the Avett Brothers?

  Asked by likipie | 7 responses

• Does shutting off my gas fire when I'm away from it for a short while save energy?

  Asked by janbb | 11 responses

• Where did the energy come from, for the big bang? Wouldn't this be a violation of law of conservation of energy?

  Asked by golusinghania | 13 responses

• Are you venting your electric dryer into your home during this patch of cold weather?

  Asked by LuckyGuy | 28 responses

• LED lights on cars. If only one is out, can you be pulled over by police?

  Asked by LuckyGuy | 7 responses

• Where can I find plans for more innovative bicycle-powered gadgets like these?

  Asked by laureth | 10 responses

• If you were an inch tall how would you build a campfire?

  Asked by Ltryptophan from iPhone | 15 responses

• Relationship between deforestation and industrialization?

  Asked by capet | 7 responses

• Why do supermarket refrigerators not have doors?

  Asked by occ | 8 responses

• What does it take to convert energy into mass? (Strange Universe Series)

  Asked by ETpro | 34 responses

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