Perhaps you've visited a restaurant and seen clear, water-filled bags hanging on the doors or cinched up in the outdoor dining area. You might ask, "What's all this about? Some crazy new way to control temperature? A scheme to save money on water pitchers?"
While any effect on temperature is purely accidental, these hanging bags are all about driving pests away. People hang these bags outside their homes, businesses and even in their barns to drive flies away.
Various takes on the water-bag practice exist. Some advocates insist the bag must have flakes of floating tin foil; others say a single penny. A couple of industrious Web sites even offer commercial takes on the concept, selling specially designed water bags to be used as repellents.
The water bag method of fly repellant has many supporters, from restaurant owners to backyard grill-masters. Many success stories ranging from the mild to the miraculous litter the Internet.
So how does the method drive flies away? Some insist the flies perceive the clear liquid as the surface of a body of water. Others claim the insect flies away at the sight of its own magnified reflection. But the most popular reasoning that pops up among entomologists and patent-filing entrepreneurs is simple light refraction.
We have also seen some people use used cds.
While any effect on temperature is purely accidental, these hanging bags are all about driving pests away. People hang these bags outside their homes, businesses and even in their barns to drive flies away.
Various takes on the water-bag practice exist. Some advocates insist the bag must have flakes of floating tin foil; others say a single penny. A couple of industrious Web sites even offer commercial takes on the concept, selling specially designed water bags to be used as repellents.
The water bag method of fly repellant has many supporters, from restaurant owners to backyard grill-masters. Many success stories ranging from the mild to the miraculous litter the Internet. So how does the method drive flies away? Some insist the flies perceive the clear liquid as the surface of a body of water. Others claim the insect flies away at the sight of its own magnified reflection. But the most popular reasoning that pops up among entomologists and patent-filing entrepreneurs is simple light refraction.
We have also seen some people use used cds.
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