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Author Topic: New developments in the field of science  (Read 417033 times)

T40cfr403

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Re: New developments in the field of science
« Reply #795 on: December 10, 2016, 12:33:09 AM »
The world's oldest known seabird is expecting--again (thanks Yankeexpress for the heads up)

http://phys.org/news/2016-12-world-oldest-seabird-expectingagain.html?utm_source=nwletter&utm_medium=email&utm_campaign=daily-nwletter

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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
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T40cfr403

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Re: New developments in the field of science
« Reply #796 on: December 10, 2016, 12:35:15 AM »
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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
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T40cfr403

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Re: New developments in the field of science
« Reply #797 on: December 10, 2016, 02:53:21 AM »
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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
― Rachel Carson, Silent Spring

T40cfr403

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Re: New developments in the field of science
« Reply #798 on: December 10, 2016, 03:00:03 AM »
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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
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T40cfr403

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Re: New developments in the field of science
« Reply #799 on: December 11, 2016, 10:08:25 PM »
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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
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T40cfr403

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Re: New developments in the field of science
« Reply #800 on: December 11, 2016, 10:21:59 PM »
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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
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T40cfr403

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Re: New developments in the field of science
« Reply #801 on: December 12, 2016, 01:23:36 PM »
New study doubles the estimate of bird species in the world

http://phys.org/news/2016-12-bird-species-world.html

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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
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T40cfr403

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Re: New developments in the field of science
« Reply #802 on: December 12, 2016, 10:19:32 PM »
Researchers explain why feather shafts change shape when under stress

http://phys.org/news/2016-12-feather-shafts-stress.html?utm_source=nwletter&utm_medium=email&utm_campaign=daily-nwletter

Paper: Light Like a Feather: A Fibrous Natural Composite with a Shape Changing from Round to Square

http://onlinelibrary.wiley.com/doi/10.1002/advs.201600360/full

Changing shape along the feather shaft: a) schematic of a flight feather shaft, numbers indicating positions along the shaft length (from calamus to rachis). Optical micrographs of the transverse sections along the shaft from b) seagull and c) crow and microcomputed tomography images from d) condor showing gradual shape change from circular hollow tube to rectangular foam filled. Pink dotted lines indicate the transverse septum and blue rectangles the ventral groove, respectively. Dorsal, lateral, and ventral portions of the shaft cortex are marked in the left figure.


Structural model of the feather shaft cortex: a) the shape factor. The cross section changes from circular at the calamus to near rectangular at the rachis. The layered structure of cortex with varying and differentially oriented fibers along shaft length: b) at the calamus, all the cortex is composed of a thin outer layer of circumferential fibers and a thick inner layer of aixal fibers; c) at the proximal rachis, the dorsal cortex consists of a thinner outer layer of circumferential fibers covering axial fibers, the lateral walls of crossed fibers and the ventral cortex of longitudinal fibers; d) at the distal rachis, the dorsal and ventral cortices are composed of axial fibers and the lateral walls of crossed fibers.
« Last Edit: February 15, 2017, 03:43:04 AM by T40cfr403 »
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T40cfr403

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Re: New developments in the field of science
« Reply #803 on: December 12, 2016, 10:33:41 PM »
Abstract: A LIGHTWEIGHT, BIOLOGICAL COMPOSITE WITH TAILORED STIFFNESS: THE FEATHER VANE

http://jacobsschool.ucsd.edu/re/abstract.sfe?id=2713

Paper: A LIGHTWEIGHT, BIOLOGICAL STRUCTURE WITH TAILORED STIFFNESS: THE FEATHER VANE

http://meyersgroup.ucsd.edu/papers/journals/Meyers%20417.pdf

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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
― Rachel Carson, Silent Spring

T40cfr403

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Re: New developments in the field of science
« Reply #804 on: December 14, 2016, 07:55:37 PM »
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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
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T40cfr403

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Re: New developments in the field of science
« Reply #805 on: December 14, 2016, 07:56:47 PM »
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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
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T40cfr403

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Re: New developments in the field of science
« Reply #806 on: December 14, 2016, 08:02:51 PM »
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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
― Rachel Carson, Silent Spring

T40cfr403

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Re: New developments in the field of science
« Reply #807 on: December 15, 2016, 04:13:43 PM »
Summary: New bird flu strain brings death and questions

http://science.sciencemag.org/content/354/6318/1363?utm_campaign=toc_sci-mag_2016-12-15&et_rid=213094054&et_cid=1056394

Article: H5N8 is killing birds around Europe and the Middle East but appears harmless to humans

http://sci-hub.cc/10.1126/science.354.6318.1363
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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
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T40cfr403

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Re: New developments in the field of science
« Reply #808 on: December 15, 2016, 04:44:17 PM »
Birds Are Becoming Totally Dependent On Our Delicious Landfills - In some cases, it's because we've destroyed their natural habitats.

http://www.huffingtonpost.com/entry/birds-food-waste-landfills_us_5852ccd3e4b054eeaea2186b

Editorial Article: Reducing agricultural loss and food waste: how will nature fare?

http://onlinelibrary.wiley.com/doi/10.1111/acv.12290/full

See the clever juvie?
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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
― Rachel Carson, Silent Spring

T40cfr403

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Re: New developments in the field of science
« Reply #809 on: December 15, 2016, 06:24:43 PM »
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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
― Rachel Carson, Silent Spring