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• What would be a cool sustainability project on a college campus?

  Asked by xxii | 9 responses

• Could one realistically power air travel with renewable energy sources?

  Asked by Nullo | 19 responses

• What will trigger the next Industrial Revolution?

  Asked by josie | 7 responses

• Why can my muscles lift, pull, and push more than my body weight?

  Asked by nikipedia | 7 responses

• Are ecological arguments for vegetarianism just nonsense?

  Asked by GeorgeGee | 40 responses

• If ghosts are made of energy, then why don't ghosts entropy or dissipate?

  Asked by mhunne | 9 responses

• Can anyone recommend the best foods to buy for student life?

  Asked by lsdh182 | 45 responses

• Do you believe people have an energy signature?

  Asked by SuperMouse | 25 responses

• Is it wrong to say that gravity is a kind of energy?

  Asked by GeorgeGee | 15 responses

• Is there something else, other than an electron, that can be used as energy?

  Asked by talljasperman | 12 responses

• Extroverts: what do you get from hanging out in person?

  Asked by laureth | 35 responses

• Does gravitational energy convert to heat?

  Asked by GeorgeGee | 11 responses

• What attracts Moth's (and other winged bugs) to porch lights or any light source for that matter?

  Asked by judochop | 6 responses

• Do you have a morning ritual? What is it?

  Asked by judyprays | 38 responses

• I lost my motivation at work. How do I put myself the same motivation I had at first?

  Asked by Ranimi23 | 9 responses

• What can be done to lower construction costs of new infrastructure in the U.S. (international input appreciated)

  Asked by bolwerk | 6 responses

• Why can't I sleep?

  Asked by Draconess25 | 16 responses

• What passes between an earphone jack and plug?

  Asked by Ltryptophan | 6 responses

• Is it safe to leave a small table top fan on while not home?

  Asked by SamIAm | 19 responses

• Is there energy in caffeine?

  Asked by Fyrius | 9 responses

• How does does the present remember the order of the past?

  Asked by Ltryptophan | 44 responses

• Public opinion swings back in favor of environmental protection - but Republicans still don't get it.

  Asked by IchtheosaurusRex | 22 responses

• Can someone explain to me how a high efficiency washing mashine can run for 3-4x longer than a conventional washer, yet uses less energy?

  Asked by MissAnthrope | 16 responses

• Does anyone have experience with solar panels and putting them together?

  Asked by Steve_A | 7 responses

• Your favourite hour of the day? Why? What do you do then?

  Asked by zenele | 22 responses

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