Fly-killing device

A flying glass or fly fishing glass, wasps glass, is a traditional form of the insect trap. It consists of a mostly corked glass decanter with gestülptem inward ground, in the middle has a small hole, so that around the hole a channel is formed. In addition there are little feet under the ground, which provide a distance between the floor and stand space, if the fly-bottle is not suspended.

Applying a liquid is placed in the case, which attracts insects. For flies and wasps fruit juice, lemonade, honey water or similar liquids are suitable sweet. To avoid that beneficial insects such as bees are attracted, you should add the sweet baits some beer. Blowflies are attracted by water mixed with meat or fish scraps, dew or fruit flies by vinegar water.

From the smell of the liquid lured the insects pass through the bottom hole in the vessel, but rarely find out again, because they instinctively fly toward the light - that is why the case of glass. After a while they drown in the liquid.

While flying glasses were formerly widespread, they have been largely replaced by flycatcher, insecticides and electric traps in the 20th century. Some artisan glassworks, they produce today, mostly in traditional, hand-blown form.

In the Brothers Grimm dictionary it says, flying glass is a " catch glass with a narrow halse in which to fly. " This expression will also be used figuratively, as when people can be lulled by promises.

An early, detailed description of an inverted flying glass ( opening up) is found in the Oeconomischen Encyclopedia of 1778.

Ludwig Wittgenstein used the flying glass in his Philosophical Investigations also figuratively: "What is your aim in philosophy? The fly the way out of the fly-bottle show. "(§ 309)

Alternatives

I modified a PET bottle can be constructed in a simple way, a flycatcher. As attractant serve sugar water, dissolved sugar candy, soda, beer, yeast, etc.

Swell

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