Articles
Dragon Flies: Marvelous Flying Machines
by Anonymous
Have you ever marvelled at the beauty and intricacy of dragonflies?
The fossil record shows they were even more amazing in the past than
they are today. Though virtually identical in structure to modem
dragonflies, some actually had wingspans of 2-3 feet! Evidence of
evolutionary change for these insects does not exist. The Denver
Museum of Natural History had this amazing article on dragonfly flight
tucked into its evolution exhibit! To us, it provides superb evidence
of God's creative design, not evolution. See what you think:
"Other
than shrinking in size, dragonflies haven't changed much over the
last 295 million years. Yet their ancient design makes
them better fliers than today's most sophisticated aircraft. These
aerial acrobats are almost perfect flying machines.
"Dr. Marvin
Luttges and others at the University of Colorado at Boulder spent
years studying dragonfly flight. As part of their
research, the scientists built this mechanical model. The model,
which mimics the movements of a dragonfly's wings, was used in wind
tunnel experiments.
"All things
that fly must generate enough force -- or lift -- to become and
remain airborne. Airplanes rely on a steady flow
of air over their wings to create lift. Dragonflies create and use
swirling, unsteady flows of air that are packed with energy. Dragonflies
tap into this energy to give themselves phenomenal amounts of lift."
"Dragonfly
wings don't just flap up and . down. The front and rear wings are
out of sync, and the wings rotate and move forward
with each stroke.
"The front
wings create energetic swirls of air. The rear wings intercept
the swirls and use their energy to create more lift. For
an instant, a dragonfly can generate lift equal to fifteen to twenty
times its own body weight!
"A dragonfly
creates continuous lift of more than twice its weight. In contrast,
a high performance aircraft can carry only 1.3
times its own weight."
"Once we
find ways to harness the energy of unsteady flows (just as dragonflies
do), we can create aircraft that are more maneuverable
and agile, improve the performance of helicopter rotors, and make
wind turbine blades that last longer. A pattern from the past can
point the way to the future..."
Did time, chance, and evolution produce these tremendously complex
flying machines? No way! God thought of flight first!
Alpha Omega Institute 1996 http://www.discovercreation.org/
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