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
Scientists uncover the role of a protein in production & survival of myelin-forming cells
19.07.2018 | Advanced Science Research Center, GC/CUNY
NYSCF researchers develop novel bioengineering technique for personalized bone grafts
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A new manufacturing technique uses a process similar to newspaper printing to form smoother and more flexible metals for making ultrafast electronic devices.
The low-cost process, developed by Purdue University researchers, combines tools already used in industry for manufacturing metals on a large scale, but uses...
For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.
To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...
For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.
Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...
Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.
A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...
Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.
"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....
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