Birds, Just as Humans, Slur After Drinking Alcohol
News from SMN Weekly:
Researchers belonging to Oregon Health & Science University have found that birds slur just as humans do after they get drunk. Zebra finch is a song bird which was selected by scientists for tests. It learns to sing in the same manner as humans learn to speak. The study is based on the reactions of the bird.
In this study researchers administered zebra finches a mixture of grape juice and ethanol and after that they checked out their reactions. Researchers described that after the birds were given the mixture, there was a change in their vocal. According to the recordings the acoustics of the song altered after the birds received alcohol.
The findings stated that the most pronounced effects of the mixture were the decreased amplitude and increased entropy. The later reflected the disruption in the ability of the birds to maintain the spectral structure of song after alcohol began affecting their minds.
Furthermore various syllables that had specific acoustic structures were influenced by the mixture. The affect of alcohol reflected that there was a diversity in the neural mechanisms that are usually required for their production.
However alcohol didn’t affect all aspects of the birdsong and scie……………. continues on SMN Weekly
NASA’s Spacecraft Approaches Dwarf Planet Ceres
News from SpaceCoastDaily.com:
By NASA.gov // December 31, 2014
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spacecraft will arrive at Ceres on March 6
ABOVE VIDEO: Ion propulsion isn’t something found only in science fiction. JPL engineer Mike Meacham looks at how ion engines are being used to drive NASA’s Dawn spacecraft through the solar system. Dawn is approaching dwarf planet Ceres in the main asteroid belt with arrival expected in March 2015. Previously, Dawn orbited Vesta, the second-largest body in the asteroid belt. Learn how ion propulsion works and why it’s the reason Dawn will be the first spacecraft ever to orbit two solar system bodies.
NASA.gov — NASA’s Dawn spacecraft has entered an approach phase in which it will continue to close in on Ceres, a Texas-sized dwarf planet never before visited by a spacecraft.
Dawn launched in 2007 and is scheduled to enter Ceres orbit in March 2015. Dawn recently emerged from solar conjunction, in which the spacecraft is on the opposite side of the sun, limiting communication with antennas on Earth.
Now that Dawn can reliably communicate with Earth again, mission controllers have programmed the maneuvers necessary for the……………. continues on SpaceCoastDaily.com
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