Skip to main content

Home/ Science Technology Society/ Group items tagged Time

Rss Feed Group items tagged

Aman Khani

3 Things to Know About TV Advertising Campaign - 1 views

  •  
    Taking the assistance of TV channel broadcasting company can certainly be of great help to make the most out of your advertisement as well as attract potential customers towards your business in the least possible time.
thinkahol *

In breakthrough, nerve connections are regenerated after spinal cord injury | KurzweilAI - 0 views

  •  
    Researchers for the first time have induced robust regeneration of nerve connections that control voluntary movement after spinal cord injury, showing the potential for new therapeutic approaches to paralysis and other motor function impairments.
thinkahol *

High-speed filter uses electrified nanostructures to purify water at low cost - 0 views

  •  
    Researchers have developed a water-purifying filter that makes the process more than 80,000 times faster than existing filters. The key is coating the filter fabric -- ordinary cotton -- with nanotubes and silver nanowires, then electrifying it. The filter uses very little power, has no moving parts and could be used throughout the developing world.
Infogreen Global

Antihydrogen Atoms Stored for the First Time - 0 views

  •  
    Large quantities of antihydrogen atoms were first made at CERN eight years ago by two other teams. Although they made antimatter they couldn't store it, because the anti-atoms touched the ordinary-matter walls of the experiments within millionths of a second after forming and were instantly annihilated-completely destroyed by conversion to energy and other particles.
Todd Suomela

Rationally Speaking: The very foundations of science - 0 views

  • The first way to think about probability is as a measure of the frequency of an event: if I say that the probability of a coin to land heads up is 50% I may mean that, if I flip the coin say 100 times, on average I will get heads 50 times. This is not going to get us out of Hume’s problem, because probabilities interpreted as frequencies of events are, again, a form of induction
  • Secondly, we can think of probabilities as reflecting subjective judgment. If I say that it is probable that the coin will land heads up, I might simply be trying to express my feeling that this will be the case. You might have a different feeling, and respond that you don’t think it's probable that the coin will lend heads up. This is certainly not a viable solution to the problem of induction, because subjective probabilities are, well, subjective, and hence reflect opinions, not degrees of truth.
  • Lastly, one can adopt what Okasha calls the logical interpretation of probabilities, according to which there is a probability X that an event will occur means that we have objective reasons to believe (or not) that X will occur (for instance, because we understand the physics of the solar system, the mechanics of cars, or the physics of coin flipping). This doesn’t mean that we will always be correct, but it does offer a promising way out of Hume’s dilemma, since it seems to ground our judgments on a more solid foundation. Indeed, this is the option adopted by many philosophers, and would be the one probably preferred by scientists, if they ever gave this sort of thing a moment’s thought.
  •  
    short summary of some probabilistic responses to the problem of induction
thinkahol *

Humanity Needs to Keep Pace with Technology (cont'd) | The Veracious Blog - 0 views

  •  
    When we talk about participation, we have to be a bit more specific. On the publishing side, there's clearly more participation than we've ever seen in the past. But in order for this tidal wave of information to be useful, we need to be able to separate fact from fiction. We need to encourage participation on the receiving end. What we need is evaluating participation. With the breadth of niche information and sources we have the ability to get at the best of what is known on a myriad of topics and contexts. Every niche has its experts and its hacks, its enthusiasts and detractors. But for the remaining 95% of us who are not subject matter experts, deriving the accurate or useful information from the sea of what is available can be complicated, time-consuming and simply unverifiable. We need a way to quantify the value of information, or more specifically, the veracity of information.
thinkahol *

The Virtue We Need [Revised and Expanded] | Socyberty - 0 views

  •  
    Uncertain times in a quickly changing world behoove us to question our judgment.
thinkahol *

'Biotic' video games: Play with microorganisms | Health Tech - CNET News - 0 views

  •  
    Stanford develops Biotic Pinball, POND PONG, and a soccer game called Ciliaball, in which a player's actions influence the behavior of living microorganisms in real time. Read this blog post by Elizabeth Armstrong Moore on Health Tech.
thinkahol *

New Scientist TV: Become a virtual film-maker - 0 views

  •  
    Motion controllers used in gaming systems like the Nintendo Wii revolutionised how video games are played. But now a similar device that's more precise - and even works when an object is in its way - will let you try something more futuristic: making movies in virtual environments. Matt Bett and his team from Abertay University in the UK developed the new motion controller that uses electromagnetic sensors to track its 3D position. The location is then mapped in real time to a virtual video camera on a screen (see video above). By moving the controller around, the camera moves around the scene like a real camera on a rig or it can be fixed to a virtual tripod.
Todd Suomela

The Professional and the Scientist in Nineteenth-Century America - JSTOR: Isis, Vol. 10... - 0 views

  •  
    "In nineteenth‐century America, there was no such person as a "professional scientist." There were professionals and there were scientists, but they were very different. Professionals were men of science who engaged in commercial relations with private enterprises and took fees for their services. Scientists were men of science who rejected such commercial work and feared the corrupting influences of cash and capitalism. Professionals portrayed themselves as active and useful members of an entrepreneurial polity, while scientists styled themselves as crusading reformers, promoters of a purer science and a more research‐oriented university. It was this new ideology, embodied in these new institutions, that spurred these reformers to adopt a special name for themselves-"scientists." One object of this essay, then, is to explain the peculiar Gilded Age, American origins of that ubiquitous term. A larger goal is to explore the different social roles of the professional and the scientist. By attending to the particular vocabulary employed at the time, this essay tries to make clear why a "professional scientist" would have been a contradiction in terms for both the professional and the scientist in nineteenth‐century America. "
thinkahol *

Future Intelligence | Watch Free Documentary Online - 0 views

  •  
    Catch a first-time glimpse at smart technology that will put android helpers in the home, network commuters and entire cities to the Web, and bring us entertainment systems that can virtually make dreams come true. Advances in artificial intelligence are creating machines with near human-like mental agility. Intelligence will be embedded everywhere - even in our clothing, thanks to smaller, more powerful computers. Soon, we will be able to build computers with artificial intelligence and processing power that rivals the human brain. Intelligence will be everywhere, in our clothing, our vehicles and homes. Intelligent robots will serve us - until they don't feel like doing so anymore. And what happens then…?
thinkahol *

RepRapWiki - 0 views

  •  
    RepRap is a free desktop 3D printer capable of printing plastic objects. Since many parts of RepRap are made from plastic and RepRap can print those parts, RepRap is a self-replicating machine - one that anyone can build given time and materials. It also means that - if you've got a RepRap - you can print lots of useful stuff, and you can print another RepRap for a friend...RepRap is about making self-replicating machines, and making them freely available for the benefit of everyone. We are using 3D printing to do this, but if you have other technologies that can copy themselves and that can be made freely available to all, then this is the place for you too.Reprap.org is a community project, which means you are welcome to edit most pages on this site, or better yet, create new pages of your own. Our community portal and New Development pages have more information on how to get involved. Use the links below and on the left to explore the site contents. You'll find some content translated into other languages.RepRap is described in the video on the right.
thinkahol *

Sony network breach shows Amazon Cloud's appeal for hackers | KurzweilAI - 0 views

  •  
    The hackers that brought down Sony's Playstation Network for more than a month used stolen credit cards to rent computing power from Amazon's Elastic Computing Cloud (EC2) to carry out their attack. Personal information, credit cards, and passwords from millions of customers were seized by hackers during the attack. Because computing power can be rented from EC2 anonymously, hacking using the service can be hard to trace. Tracing the attack may require the FBI seeking a search warrant to access Amazon's detailed records of which IP addresses accessed the service at which time, and tracing those IP addresses to homes or businesses. The Playstation Network remains down in Japan due to government concerns over its security.
thinkahol *

Historic first images of rod photoreceptors in the living human eye - 0 views

  •  
    ScienceDaily (June 9, 2011) - Scientists have just reported that the tiny light-sensing cells known as rods have been clearly and directly imaged in the living eye for the first time. Using adaptive optics (AO), the same technology astronomers use to study distant stars and galaxies, scientists can see through the murky distortion of the outer eye, revealing the eye's cellular structure with unprecedented detail. This innovation, described in two papers in the Optical Society's (OSA) open access journal Biomedical Optics Express, will help doctors diagnose degenerative eye disorders sooner, leading to quicker intervention and more effective treatments.
thinkahol *

Dr. Daniel G. Nocera - YouTube - 0 views

  •  
    The supply of secure, clean, sustainable energy is arguably the most important scientific and technical challenge facing humanity in the 21st century. Rising living standards of a growing world population will cause global energy consumption to double by mid-century and triple by the end of the century. Even in light of unprecedented conservation, the additional energy needed is simply not attainable from long discussed sources these include nuclear, biomass, wind, geothermal and hydroelectric. The global appetite for energy is simply too much. Petroleum-based fuel sources (i.e., coal, oil and gas) could be increased. However, deleterious consequences resulting from external drivers of economy, the environment, and global security dictate that this energy need be met by renewable and sustainable sources. The dramatic increase in global energy need is driven by 3 billion low-energy users in the non-legacy world and by 3 billion people yet to inhabit the planet over the next half century. The capture and storage of solar energy at the individual level personalized solar energy drives inextricably towards the heart of this energy challenge by addressing the triumvirate of secure, carbon neutral and plentiful energy. This talk will place the scale of the global energy issue in perspective and then discuss how personalized energy (especially for the non-legacy world) can provide a path to a solution to the global energy challenge. Daniel G. Nocera is the Henry Dreyfus Professor of Energy at the Massachusetts Institute of Technology, Director of the Solar Revolutions Project and Director of the Eni Solar Frontiers Center at MIT. His group pioneered studies of the basic mechanisms of energy conversion in biology and chemistry. He has recently accomplished a solar fuels process that captures many of the elements of photosynthesis outside of the leaf. This discovery sets the stage for a storage mechanism for the large scale, distributed, deployment of solar energy. He has b
thinkahol *

Natural brain state is primed to learn - life - 19 August 2011 - New Scientist - 0 views

  •  
    Apply the electrodes... Externally modulating the brain's activity can boost its performance. The easiest way to manipulate the brain is through transcranial direct current stimulation (tDCS), which involves applying electrodes directly to the head to influence neuron activity with an electric current. Roi Cohen Kadosh's team at the University of Oxford showed last year that targeting tDCS at the brain's right parietal lobe can boost a person's arithmetic ability - the effects were still apparent six months after the tDCS session (newscientist.com/article/dn19679). More recently, Richard Chi and Allan Snyder at the University of Sydney, Australia, demonstrated that tDCS can improve a person's insight. The pair applied tDCS to volunteers' anterior frontal lobes - regions known to play a role in how we perceive the world - and found the participants were three times as likely as normal to complete a problem-solving task (newscientist.com/article/dn20080). Brain stimulation can also boost a person's learning abilities, according to Agnes Flöel's team at the University of Münster in Germany. Twenty minutes of tDCS to a part of the brain called the left perisylvian area was enough to speed up and improve language learning in a group of 19 volunteers (Journal of Cognitive Neuroscience, DOI: 10.1162/jocn.2008.20098). Using the same technique to stimulate the brain's motor cortex, meanwhile, can enhance a person's ability to learn a movement-based skill (Proceedings of the National Academy of Sciences, DOI: 10.1073/pnas.0805413106).
thinkahol *

Cloaking magnetic fields: First antimagnet developed - 0 views

  •  
    ScienceDaily (Sep. 23, 2011) - Spanish researchers have designed what they believe to be a new type of magnetic cloak, which shields objects from external magnetic fields, while at the same time preventing any magnetic internal fields from leaking outside, making the cloak undetectable.
thinkahol *

News Desk: What Facebook Really Wants : The New Yorker - 0 views

  •  
    One way to change something big is to get people really riled up about how you've changed something small. Repaint the boat, and let them to argue about that. By the time they've realized that green is no worse than blue, they won't have the energy to wonder whether it was a smart idea for you to set sail for Australia.
Todd Suomela

The Technium: Chosen, Inevitable, and Contingent - 0 views

  • There are two senses of "inevitable" when used with technology. In the first case, an invention merely has to exist once. In that sense, every technology is inevitable because sooner or later some mad tinkerer will cobble together almost anything that can be cobbled together. Jetpacks, underwater homes, glow-in-the-dark cats, forgetting pills — in the goodness of time every invention will inevitably be conjured up as a prototype or demo. And since simultaneous invention is the rule not the exception, any invention that can be invented will be invented more than once. But few will be widely adopted. Most won't work very well. Or more commonly they will work but be unwanted. So in this trivial sense, all technology is inevitable. Rewind the tape of time and it will be re-invented. The second more substantial sense of "inevitable" demands a level of common acceptance and viability. A technology's use must come to dominate the technium or at least its corner of the technosphere. But more than ubiquity, the inevitable must contain a large-scale momentum, and proceed on its own determination beyond the free choices of several billion humans. It can't be diverted by mere social whims.
‹ Previous 21 - 40 of 67 Next › Last »
Showing 20 items per page