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Matt Evans
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Matt Evans

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Could Owls Help Make Aircraft Propellers Quieter ?

The University of Cambridge researchers who examined owl feathers found that feathers were made up of microscopic coverings and a porous elastic fringe on the trailing edge that scatters sound without having adverse impacts on aerodynamics.

They copied the structure on 3D-printed plastic and tested it on a wind turbine in a wind tunnel. The researchers were able to register significantly reduced noise levels. They believe it could be applied to aircraft propellers or even computer fans to muffle noise.

+ Enjoy reading this article here  -  http://goo.gl/LqCSFr
+ An audio interview with Prof Nigel Peake, University of Cambridge here  - http://goo.gl/gUsnFg




#aircraft #propeller #quiet #owl #feather #sound #aerodynamics #noise #science #discovery #engineering
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It's either this, or put a recording of Bill Hicks' "Gideons" in the drawer along side the Gideon Bible. Maybe both.
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Matt Evans

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New tune I wrote 8/6-8/7/2014

#music #acoustic #homerecording #demo  
The Big Zero
Tick Tock (Had Enough)
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Decided to set up a SoundCloud stream for my shitty music. Figured it would be more convenient to have the ability to stream it with the option to download instead of having to download the files from my Google Drive and listen to them locally.
37 year old dude from southern WV. Been writing music on-and-off since 1995 (mostly off as of late). Interested in science, skepticism, music, and bad movies. Most of the tracks uploaded here were recorded using a terrible computer headset mic, some were recorded on an almost equally terrible Tascam X-14 4-track recorder and transferred to the computer, and one or two were recorded with a smartphone.
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Here's a little "Is that in the Bible?" fun... Ezekiel 23:19-20 (RSV):

"Yet she increased her harlotry, remembering the days of her youth, when she played the harlot in the land of Egypt and doted upon her paramours there, whose members were like those of asses, and whose issue was like that of horses."

How's that for "inspired," eh?
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Dave Foley - We Done a Sciencin'
Music for every moment. Spotify is a digital music service that gives you access to millions of songs.
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Don't normally care for this show, but I'll listen to almost any interview with Doc Bob.
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“'One of the key objectives of my mandate, the end of recruitment and use of children by armed forces, is finally within reach,' said Leila Zerrougui, the Special Representative of the Secretary-General for Children and Armed Conflict as she presented the Secretary-General’s annual report on children and armed conflict to the Security Council.

Important progress has been achieved in the past 18 months. There are eight Government armies listed for the recruitment and use of children and six of them have already committed to making their armies child-free. In 2012, South Sudan, Myanmar, Somalia and the Democratic Republic of Congo signed action plans with the United Nations. The previous year, Afghanistan and Chad made similar commitments. Discussions initiated with the Governments of Yemen and Sudan are expected to lead to action plans in the near future.

Action plans signed with the United Nations are roadmaps to end and prevent violations against children. They allow the United Nations to support Governments or armed groups in identifying and releasing children present in the ranks of their armed forces. They also include trainings for military personnel as well as the development of programmes to reintegrate former child soldiers and prevent future recruitment."
  #UN #children #soldiers #humanrights #map  
55 armed groups operating in 21 countries are on a "list of shame." READ MORE
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Have him in circles
53 people
Ryan Smith's profile photo
Dave Henderson's profile photo
Jason Vickers's profile photo
Aaron Ferguson's profile photo
jenipher jones's profile photo
James Randi Educational Foundation's profile photo
Matt Peake's profile photo
Justin Smith's profile photo
Howard Scott's profile photo
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Greenhorn student of comparative mythology/religion, lazy gamer, music fan.
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