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Thijs Versloot

Does your iPhone have free will? #arXiv - 3 views

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    If you've ever found your iPhone taking control of your life, there may be a good reason. It may think it has free will. That may not be quite as far-fetched as it sounds. Today, one leading scientist outlines a 'Turing Test' for free will and says that while simple devices such as thermostats cannot pass, more complex ones like iPhones might.
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    An interesting paper about how you should *NOT* think about free will...
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    I must say that the fact that the outcome of a thought process is not evident to myself in advance sounds like a more plausible explanation than 'free will' being the product of quantum mechanics. The later would not only produce unpredictable decisions but probably also irrational ones...
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    Even if it were the product of quantum mechanics, it's still the result of external interference and not the result of 'free' will. It doesn't matter if the external input is deterministic or random, it's still external and it's not "YOU" that decided stuff.
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    I don't know the inventor of that nonsense that the free will should be the result of QM. It's about the only point I agree with the author of the paper: QM is not necessary and doesn't help. What I meant: all these thought experiments done by typical ultra-naive realists (or ultra-naive physicalists, if you prefer) that cultivate the university departments of physics, computer science etc. are put the cart before the horse. First one has to clarify the role of physical theories and its concepts (e.g. causality) and then one can start to ask how "free will" could perhaps be seen in these theories. More than 200 years ago there existed a famous philosopher named Kant who had some interesting thoughts about this. But authors like Lloyd behave as if he never existed, in fact is view of the world is even pre-Platonic!
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    Henry Kissinger How I'm missing yer And wishing you were here
Beniamino Abis

Self-healing plastic that regenerates mimicking blood clots - 1 views

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    A vascular synthetic system that restores mechanical performance in response to large-scale damage. Gap-filling scaffolds are created through a two-stage polymer chemistry that initially forms a shape-conforming dynamic gel but later polymerizes to a solid structural polymer with robust mechanical properties.
LeopoldS

Common ecology quantifies human insurgency : Article : Nature - 0 views

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    nice paper: like especially: To our knowledge, our model provides the first unified explanation of high-frequency, intra-conflict data across human insurgencies. Other explanations of human insurgency are possible, though any competing theory would also need to replicate the results of Figs 1, 2, 3. Our model's specific mechanisms challenge traditional ideas of insurgency based on rigid hierarchies and networks, whereas its striking similarity to multi-agent financial market models24, 25, 26 hints at a possible link between collective human dynamics in violent and non-violent settings1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19. Top of page
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    There was also this paper ... Power Law Explains Insurgent Violence (http://sciencenow.sciencemag.org/cgi/content/full/2009/1216/1?rss=1)
pacome delva

Algae Show a Knack for Quantum Mechanics -- Berardelli 2010 (203): 3 -- ScienceNOW - 1 views

  • the discovery will open up a new field of research, and it could lead to a new generation of superefficient light-sensitive devices.
  • the experiments showed that the electron vibrations resulting from the photons striking the antennas persisted at full strength four times longer than expected. The reason, the researchers report this week in Nature, is that quantum mechanics controls the energy. "It was an utter surprise," says physical chemist and co-author Gregory Scholes of the University of Toronto in Canada. For the results to have occurred, he explains, a property called quantum coherence must have been operating.
  • the research "will open an entirely new area of biophysics." And that effort should have "huge implications," he says, "not only for how we think about biophysics, but also light harvesting and light-sensitive devices."
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    Very interesting work, showing that apparently algae mastered quantum coherence a few years before us... Inspiring for a new type of light-sensitive devices, and perhaps other applications...
pacome delva

BEC coupled to mechanical oscillator - 0 views

  • Treutlein and colleague’s work represents an important step forward in the use of ultracold atoms to study mechanical systems. "This experiment clearly demonstrates the possibility to use ultracold atomic systems as diagnostic tools and high-precision sensors, this is a very promising route of research," he said.
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    nice!!!
Juxi Leitner

Robots get smarter by asking for help - tech - 17 September 2009 - New Scientist - 0 views

  • The system uses Amazon's Mechanical Turk, an online marketplace which pairs up workers with employers that have simple tasks they need completing. The robot takes a photo of the object it doesn't recognise and sends it to Mechanical Turk.
nikolas smyrlakis

BBC NEWS | Science & Environment | Bridging the gap to quantum world - 0 views

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    A "spooky" quantum effect is seen in a mechanical system for the first time.
ESA ACT

The Role of Wheat Awns in the Seed Dispersal Unit -- Elbaum et al. 316 (5826): 884 -- S... - 0 views

shared by ESA ACT on 24 Apr 09 - Cached
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    A even more passive mechanism of penetrating the surface and anchoring the ground...
ESA ACT

Fertigungsverfahren Thixomoulding: Vorbild Treibsand - Auto - SPIEGEL ONLINE - Nachrichten - 0 views

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    A method, formerly unknown to me. Maybe the mechanical engineers find it interesting.
ESA ACT

Solid-state, microchip-sized fan promises to cool laptops - Engadget - 0 views

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    could this also be useful - I doubt so since it seems to use air flow for cooling but don#t really understand the mechanisms ...
ESA ACT

Mystery mechanism heals high-tech composite - tech - 05 December 2007 - New Scientist Tech - 0 views

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    interesting .... have they so far been involved?
johannessimon81

A New Class of Faint Supernova - 0 views

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    The type is much weaker than normal supernovas and seems to have a new mechanism underlying it.
johannessimon81

The anternet - the signals network of ants - 3 views

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    The algorithm that regulates the flow of ants is evolving toward minimizing operating costs rather than immediate accumulation.
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    Turns out even ants can profit from a siesta on a hot day and they use network security and repair mechanisms. Maybe there is still something undiscovered that we can apply for our own networks.
fichbio

[1610.08323] Evidence for vacuum birefringence from the first optical polarimetry measu... - 3 views

shared by fichbio on 02 Dec 16 - No Cached
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    Abstract: The "Magnificent Seven" (M7) are a group of radio-quiet Isolated Neutron Stars (INSs) discovered in the soft X-rays through their purely thermal surface emission. Owing to the large inferred magnetic fields ($B\approx 10^{13}$ G), radiation from these sources is expected to be substantially polarised, independently on the mechanism actually responsible for the thermal emission.
jcunha

First 'water-wave' laser created - 0 views

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    Technion researchers have demonstrated, for the first time, that laser emissions can be created through the interaction of light and water waves, in practice mechanical oscillations in fluids at the nanoscale. Interesting concept on the verge of two so far different fields!
Alexander Wittig

Self-Destructing Gadgets Made Not So Mission Impossible - 1 views

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    Self-destruct options from the Mission: Impossible movies could become a reality for even the most common smartphones and laptops used by government officials or corporate employees. A new self-destruct mechanism can destroy electronics within 10 seconds through wireless commands or the triggering of certain sensors. Just don't leave your computer sitting in the sun for long...
Lionel Jacques

String-theory calculations describe 'birth of the universe' - 0 views

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    Researchers in Japan have developed what may be the first string-theory model with a natural mechanism for explaining why our universe would seem to exist in three spatial dimensions if it actually has six more. According to their model, only three of the nine dimensions started to grow at the beginning of the universe, accounting both for the universe's continuing expansion and for its apparently three-dimensional nature. ... The team has yet to prove that the Standard Model of particle physics will show up in its model,...
Tom Gheysens

Analysis of salamander jump reveals an unexpected twist - 1 views

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    here is the video - did not really get the mechanism
Thijs Versloot

Liquid metal pump a breakthrough for micro-fluidics (video) - 0 views

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    RMIT University researchers in Melbourne, Australia, have developed the world's first liquid metal enabled pump, a revolutionary new micro-scale device with no mechanical parts. The unique design will enable micro-fluidics and lab-on-a-chip technology to finally realise their potential, with applications ranging from biomedicine to biofuels.
H H

Mind over mechanics - 2 views

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    In a jaw-dropping feat of engineering, electronics turn a person's thoughts into commands for a drone. Using a brain-computer interface technology pioneered by University of Minnesota biomedical engineering professor Bin He, several young people have learned to use their thoughts to steer a flying robot around a gym, making it turn, rise, dip, and even sail through a ring.
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    Pretty cool, so when is this going to be available for our quadrocopter?
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