2010 - Volume #34, Issue #6, Page #28
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Wind Chime Fire Alarm
Wind chimes let Ed Mullins know when he needs to check the wood and coal stove that heats his Blacksburg, Va., home.
  "I know hot air has energy, so why not use that to do something practical?" Mullins explains. "In this case, it's a safety feature."
  The wind chimes hang above the stove where the hot air ..........


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2010 - Volume #34, Issue #6