Flies have been pursuing mankind
throughout all of recorded history, and probably from the time man emerged from
his caves and began to walk erect.
They are
depicted in the oldest writings from the ancient world. Hieroglyphics from
Egypt (pictured here) chronicle these tormentors along the nile. Flies are
referenced in the Bible as one of the plagues Moses brought down upon the house
of Pharaoh. They have even been taken aboard the space shuttle into outer space.
In all there are over 120,000 species of flies ranging in size from
1/20th of an inch to well over three inches. Can you imagine what an engine a
three inch fly would make!
One of the things that separate Flies (
Diptera) from other flying insects are their wings. Flies are the only insects
that have only two. All other insects have four wings.
The flies
reputation for uncleanliness is also well deserved. Many of man's primary
diseases are transmitted by flies, including the deadlyYellow
Fever. Entomologists Dr. Yao and Dr. Yuan of China studied more than
378,046 common house flies and estimated that each carried no less than
1,941,000 bacteria on their bodies. Indeed Flies are probably responsible for
more deaths among humans then any perceived atrocities we may have misguidedly
thrust upon them.
Also, flies don't bite or sting. They have neither
teeth nor a stinger. Flies thrust a needle like spike into their victims and
injects a digestive juice that breaks down the victims cell tissue. They then
suck the liquid in to injest it. Very poor manners to say the least.
But
don't think that flies are helpless and otherwise benign to their larger
neighbors. In 1923, Black flies in swarms were reportedly responsible for the
deaths of more than 20,000 sheep, horses and cattle in Rumania and Bulgaria. Of
course I would suppose one would expect this sort of behavior from an area of
the world that also brought us the Carpathinan warlord, Dracula.
A few
more misc. facts to round things out. Did you know.........
- The average house fly lives on average 21 days.
- A flies wings beat 200 times per second.
- Flies don't grow. They are born full size.
- Flies have 4000 lenses in each eye.
- Flies jump up and backwards when taking off.
- Average speed of a fly in flight is 4.5 m.p.h..
- Flies smell with their antennae
Finally, one last fact. As you
will see on the Historical Flypower page, many designs for fly powered aircraft
have been presented to the unwary public. Most depict flies being glued to some
form of fuselage by their feet. This is a sure way to disaster.
Fact: Flies will only continue to beat their wings so
long as their feet are free. As soon as the feet become stationary, the will
stop flying. Remember this as the fundamental rule of FlyPower.
If you
have any other interesting information you would like to pass along on our hairy
little friends, send us an e-mail and we'll
include it here.