While examining the flight behavior of flesh flies, Cornell University entomologists have discovered that males of the species (Sarcophagidae: Neobellieria bullata ) -- traveling at very high speed, soaring in sexual pursuit and swiveling their heads like gun turrets -- literally can lose sight of a target female. Yet the males compensate for the momentary loss of vision and still catch up to mate.
A detailed explanation of this quirk in vision physiology and neurological processing could help military and aerospace engineers to build aircraft and artillery that have improved detection of evasive targets.
"This fly has a very small brain, but it moves at relatively fast speeds, over 2 meters per second. The male flesh fly is very successful at chasing and catching the female even without an elaborate, high-powered onboard computer. Our study is the first to determine that chasers, indeed, radically move their heads while in pursuit, which means that they may be aiming the high-resolution part of their eye at the female," said Cole Gilbert, Cornell University professor of entomology. He is presenting this research today Nov. 10, at the Society for Neuroscience meeting at the Ernest N. Morial Convention Center in New Orleans. Gilberts poster presentation is titled "View from the cockpit of a fly: visual guidance of sexual aerial pursuit in male flesh flies."
Blaine P. Friedlander Jr. | Cornell News
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A very special kind of light is emitted by tungsten diselenide layers. The reason for this has been unclear. Now an explanation has been found at TU Wien (Vienna)
It is an exotic phenomenon that nobody was able to explain for years: when energy is supplied to a thin layer of the material tungsten diselenide, it begins to...
Researchers at Ludwig-Maximilians-Universitaet (LMU) in Munich have explored the initial consequences of the interaction of light with molecules on the surface of nanoscopic aerosols.
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Particles that are mere nanometers in size are at the forefront of scientific research today. They come in many different shapes: rods, spheres, cubes, vesicles, S-shaped worms and even donut-like rings. What makes them worthy of scientific study is that, being so tiny, they exhibit quantum mechanical properties not possible with larger objects.
Researchers at the Center for Nanoscale Materials (CNM), a U.S. Department of Energy (DOE) Office of Science User Facility located at DOE's Argonne National...
A new research project at the TH Mittelhessen focusses on the development of a novel light weight design concept for leisure boats and yachts. Professor Stephan Marzi from the THM Institute of Mechanics and Materials collaborates with Krake Catamarane, which is a shipyard located in Apolda, Thuringia.
The project is set up in an international cooperation with Professor Anders Biel from Karlstad University in Sweden and the Swedish company Lamera from...
Superconductivity has fascinated scientists for many years since it offers the potential to revolutionize current technologies. Materials only become superconductors - meaning that electrons can travel in them with no resistance - at very low temperatures. These days, this unique zero resistance superconductivity is commonly found in a number of technologies, such as magnetic resonance imaging (MRI).
Future technologies, however, will harness the total synchrony of electronic behavior in superconductors - a property called the phase. There is currently a...
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