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ESA ACT

Ecology: Managing Evolving Fish Stocks -- Jorgensen et al. 318 (5854): 1247 -- Science - 0 views

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    Evolution live: Due to the fact that bigger fish have a higher chance of getting caught in fish nets, the average body size at when fish start reproduce is drastically decreasing.
ESA ACT

Magnetic monopoles in spin ice : Abstract : Nature - 0 views

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    "We pursue an alternative strategy, namely that of realizing monopoles not as elementary but rather as emergent particles-that is, as manifestations of the correlations present in a strongly interacting many-body system."
ESA ACT

Geometry and self-righting of turtles - 0 views

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    Strange geometrical bodies and their application by turtles. Reverse biomimetics...
ESA ACT

Micronanostructures of the scales on a mosquito's legs and their role in weight support - 0 views

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    We show here that the mosquito cannot only give rise to a higher water-supporting force than the water strider if the ratio of the water-supporting force to the body weight of the insect itself is compared, but also can safely take off or land on the wate
ESA ACT

Microfibre-nanowire hybrid structure for energy scavenging : Abstract : Nature - 0 views

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    This work establishes a methodology for scavenging light-wind energy and body-movement energy using fabrics.
Giusi Schiavone

RedTacton - 4 views

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    impressive: use of human body for communication between electronic devices
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    i saw once a similar system that would automatically transfer your business card when you shake hands ... funny ..
LeopoldS

NIAC 2014 Phase I Selections | NASA - 4 views

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    12 new NIAC 1 studies - many topics familiar to us ... please have a look at those closest to your expertise to see if there is anything new/worth investigating (and in general to be knowledgeable on them since we will get questions sooner or later on them)
    Principal Investigator Proposal Title Organization City, State, Zip Code
    Atchison, Justin Swarm Flyby Gravimetry Johns Hopkins University Baltimore, MD 21218-2680
    Boland, Eugene Mars Ecopoiesis Test Bed Techshot, Inc. Greenville, IN 47124-9515
    Cash, Webster The Aragoscope: Ultra-High Resolution Optics at Low Cost University of Colorado Boulder, CO 80309-0389
    Chen, Bin 3D Photocatalytic Air Processor for Dramatic Reduction of Life Support Mass & Complexity NASA ARC Moffett Field, CA 94035-0000
    Hoyt, Robert WRANGLER: Capture and De-Spin of Asteroids and Space Debris Tethers Unlimited Bothel, WA 98011-8808
    Matthies, Larry Titan Aerial Daughtercraft NASA JPL Pasadena, CA 91109-8001
    Miller, Timothy Using the Hottest Particles in the Universe to Probe Icy Solar System Worlds John Hopkins University Laurel, MD 20723-6005
    Nosanov, Jeffrey PERISCOPE: PERIapsis Subsurface Cave OPtical Explorer NASA JPL Pasadena, CA 91109-8001
    Oleson, Steven Titan Submarine: Exploring the Depths of Kraken NASA GRC Cleveland, OH 44135-3127
    Ono, Masahiro Comet Hitchhiker: Harvesting Kinetic Energy from Small Bodies to Enable Fast and Low-Cost Deep Space Exploration NASA JPL Pasadena, CA 91109-8001
    Streetman, Brett Exploration Architecture with Quantum Inertial Gravimetry and In Situ ChipSat Sensors Draper Laboratory Cambridge, MA 02139-3539
    Wiegmann, Bruce Heliopause Electrostatic Rapid Transit System (HERTS) NASA MSFC Huntsville, AL 35812-0000
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    Eh, the swarm flyby gravimetry is very similar to the "measuring gravitational fields" project I proposed in the brewery
LeopoldS

Wearable sweat sensor paves way for real-time analysis of body chemistry : Nature News & Comment - 0 views

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    seems also potentially useful for astronauts ...
Nina Nadine Ridder

Roboticists learn to teach robots from babies - 2 views

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    Babies learn about the world by exploring how their bodies move in space, grabbing toys, pushing things off tables and by watching and imitating what adults are doing. But when roboticists want to teach a robot how to do a task, they typically either write code or physically move a robot's arm or body to show it how to perform an action.
Marcus Maertens

Exoplanet Travel Bureau | Explore - Exoplanet Exploration: Planets Beyond our Solar System - 1 views

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    NASA marketing interstellar travel to foreign bodies even without knowing how they actually look like.
darioizzo2

Repulsive Curves | DeepAI - 0 views

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    They pack a rabbit with an intestine!! Must be relevant to something ... and they plan to using the n-body code rakau developed by Francesco ....
LeopoldS

A first-order secular theory for the post-Newtonian two-body problem with spin - I. The restricted case - 6 views

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    Francesco and Sante s paper is out - let's see the reactions ....
Luís F. Simões

Physicists Discover a Whopping 13 New Solutions to Three-Body Problem - ScienceNOW - 1 views

  • The discovery of 13 new families, made by physicists Milovan Šuvakov and Veljko Dmitrašinović at the University of Belgrade, brings the new total to 16.
  • All the solutions can be viewed online
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    They search numerically for initial conditions resulting in periodic orbits. Reminds to me the methods we employed for the "search for invariant relative motion" and which brought us to discover the magic inclinations (47.9 degrees). I wonder what are the implications. In any case nice plots :)
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    Haven't read in detail, but it's not clear to me what it means exactly. If they were discovered numerically (I assume it means via numerical integration), how can they be sure the orbits are truly periodic?
LeopoldS

Meteorite Crashes In Russia, Panic Spreads (Updating) - 5 views

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    Latest update: the European Space Agency says their experts "confirm there is no link between the meteor incidents in Russia and asteroid 2012DA14 flyby tonight". How did they find this? As they did not see this one coming, how could they come to that conclusion that early!
  • ...5 more comments...
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    As you can see from the videos of this meteorite it is coming in from an east to south-east direction (i.e. the direction of the sunrise, more or less). 2012DA14 is coming from due south as you can see here: http://www.wired.com/wiredscience/2013/02/how-to-watch-asteroid-2012-da14/ So the two objects seem to be coming from different directions - at least that would be my explanation.
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    My point is, that if you want to come to such a conclusion (that it is not rubble) you need to be able to construct back the orbits of both objects. 2012DA14 has been observed for one year only, but it is well enough. When the meteor has been observed for the first time, such that we knew its orbit? has it been observed before? if yes, why the impact has not been predicted?
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    If you can show that they come from different directions you know that they are not associated, even if you don't reconstruct their orbits.
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    I don't think so. If both objects were part of the same, they would be on different but intersecting orbits anyway, hence different directions. Anyway, I am not knowledgeable in atmospheric entry ... But, with so few information about the object, I am surprised they are 100% certain it is not related to DA14. I think science requires more cautions ... With only the direction they are 100% sure, while the probability of such event is itself extremely small, I am amazed... They can't even predict with 100% certainty where a space debris will fall... plus, nobody consider the object being part of a bigger one that broke up during early entry (which has not been observed) ... so many uncertainties and possible hypothesis... and i am not the only one :) http://www.infowars.com/russian-meteor-linked-to-da14-asteroid/
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    was not that evident to me also but apparently with the right understanding it was quite clear; was amazed also how quickly NASA has published the likely trajectory of the russian object - have a look at it: quite evident that these are not coming from the same body
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    yes, now i get my 100% certainty with the reconstructed orbits nothing else (http://wiki.nasa.gov/cm/blog/Watch%20the%20Skies/posts/post_1361037562855.html) ... I still think that esa anouncemement was highly premature but with a high probability of being right...
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    Some more results on the topic (link to an arxiv article inside): http://www.bbc.co.uk/news/science-environment-21579422
johannessimon81

Plastic Clothing Inspired By Kitchen Wrap Releases Body's Infrared Radiation To Cool The Skin - 0 views

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    Any unintended consequences..? https://i.stack.imgur.com/A0UZn.jpg
fichbio

A 3D bioprinting - 5 views

http://www.nature.com/nbt/journal/vaop/ncurrent/full/nbt.3413.html#access Amazing things happen, development of 3D bioprinting technology opens a new era in restoring people after serious injuries...

Biotechnology bioengineering transhumanism

started by fichbio on 17 Feb 16 no follow-up yet
jcunha

Breakthrough model biological supercomputer - 4 views

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    The model bio- supercomputer is powered by adenosine triphosphate (ATP), the substance that provides energy to all of the cells in a human body.
santecarloni

How Dark Matter Interacts with the Human Body - Technology Review - 1 views

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    ... no comment...
Tom Gheysens

Biomimicr-E: Nature-Inspired Energy Systems | AAAS - 4 views

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    some biomimicry used in energy systems... maybe it sparks some ideas
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    not much new that has not been shared here before ... BUT: we have done relativley little on any of them. for good reasons?? don't know - maybe time to look into some of these again more closely Energy Efficiency( Termite mounds inspired regulated airflow for temperature control of large structures, preventing wasteful air conditioning and saving 10% energy.[1] Whale fins shapes informed the design of new-age wind turbine blades, with bumps/tubercles reducing drag by 30% and boosting power by 20%.[2][3][4] Stingray motion has motivated studies on this type of low-effort flapping glide, which takes advantage of the leading edge vortex, for new-age underwater robots and submarines.[5][6] Studies of microstructures found on shark skin that decrease drag and prevent accumulation of algae, barnacles, and mussels attached to their body have led to "anti-biofouling" technologies meant to address the 15% of marine vessel fuel use due to drag.[7][8][9][10] Energy Generation( Passive heliotropism exhibited by sunflowers has inspired research on a liquid crystalline elastomer and carbon nanotube system that improves the efficiency of solar panels by 10%, without using GPS and active repositioning panels to track the sun.[11][12][13] Mimicking the fluid dynamics principles utilized by schools of fish could help to optimize the arrangement of individual wind turbines in wind farms.[14] The nanoscale anti-reflection structures found on certain butterfly wings has led to a model to effectively harness solar energy.[15][16][17] Energy Storage( Inspired by the sunlight-to-energy conversion in plants, researchers are utilizing a protein in spinach to create a sort of photovoltaic cell that generates hydrogen from water (i.e. hydrogen fuel cell).[18][19] Utilizing a property of genetically-engineered viruses, specifically their ability to recognize and bind to certain materials (carbon nanotubes in this case), researchers have developed virus-based "scaffolds" that
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