background preloader

How Quantum Suicide Works

How Quantum Suicide Works
­­A man sits down before a gun, which is pointed at his head. This is no ordinary gun; i­t's rigged to a machine that measures the spin of a quantum particle. Each time the trigger is pulled, the spin of the quantum particle -- or quark -- is measured. Depending on the measurement, the gun will either fire, or it won't. If the quantum particle is measured as spinning in a clockwise motion, the gun will fire. If the quark is spinning counterclockwise, the gun won't go off. Nervously, the man takes a breath and pulls the trigger. Go back in time to the beginning of the experiment. But, wait. This thought experiment is called quantum suicide.

http://science.howstuffworks.com/innovation/science-questions/quantum-suicide.htm

Related:  Universe & Multiversemadcat68

SIMBAD Astronomical Database SIMBAD on the Web is the WWW interface to the SIMBAD database. It offers the following functionalities: Query by identifiers and around identifiers Query by coordinates, specifying the radius and the equinox Query by bibcode and partial bibcode Sampling with a set of physical criteria Query by lists of objects, coordinates or bibcodes Display charts for list of objects resulting from coordinates query Moreover, the interface provides links with many other data services : Links to the other CDS services: Tables in VizieR, giving access to the whole catalogued data, links to Aladin images, surveys and observatory logs. Through the coordinates in basic data, you can query around an object, using a provided radius.

Permaculture Guilds - Never Ending Food Permaculture is based on natural systems like those that we see in forests. In a forest system, there are mulitple layers of vegetation growing together in a very diverse setting. We see many types of trees, shrubs, plants, insects, animals, and various other things all living together in a system that continually strengthens itself. Hyperchaos A hyperchaotic attractor is typically defined as chaotic behavior with at least two positive Lyapunov exponents. Combined with one null exponent along the flow and one negative exponent to ensure the boundness of the solution, the minimal dimension for a (continuous) hyperchaotic system is 4. The first hyperchaotic system

2011 preview: No 'magic' element just yet - physics-math - 24 December 2010 Read more: "In with the New Scientist: Our predictions for 2011" Our calculation suggests we won't reach the fabled "island of stability" at the far depths of the periodic table until 2042 Elements occupying the far depths of the periodic table are so exotic and ephemeral it seems as if they are only barely there. In early 2010, when physicists announced the creation of the superheavy element ununseptium, even the handful of atoms that were made decayed into smaller ones in a fraction of a second. Theory predicts, however, that superheavy isotopes with lifetimes of minutes can be made.

Lucid Dreaming/Using Dream stabilization[edit] Once you are able to dream lucidly, you may find that it is difficult to stay in the dream; for example, you may wake instantly or the dream may start “fading” which is characterized by loss or degradation of any of the senses, especially vision. Alternatively, a new lucid dreamer could easily forget that they are in a dream, as a result of the shock of the sensation. Don't worry if you wake immediately after becoming lucid.

10 Strange Things About The Universe Space The universe can be a very strange place. While groundbreaking ideas such as quantum theory, relativity and even the Earth going around the Sun might be commonly accepted now, science still continues to show that the universe contains things you might find it difficult to believe, and even more difficult to get your head around.

The Center for Statistics and the Social Sciences The Center for Statistics and the Social Sciences started in 1999, with funding from the University Initiatives Fund. It was the first center in the nation devoted to this interface, with the triple mission of galvanizing collaborative research between social scientists and statisticians, developing a menu of new graduate courses for social science students, and putting together an innovative case-based undergraduate statistics sequence for the social sciences. Research collaboration is fostered in a variety of ways, through seminars, seed grants, the consulting program, the working papers series, and the collaborative work of our core faculty. Our dynamic Seminar series meets on Wednesdays at 12:30pm in Savery 409 and is run by CSSS Seminar Director Peter Hoff. This features a great deal of interaction and discussion, and is highly interdisciplinary in terms of both speakers and audience.

Quantum Entanglements 1, I Since 2008, Academic Earth has worked diligently to compile an ever-growing collection of online college courses, made available free of charge, from some of the most respected universities. We proudly build on the precedent set forth by MIT OpenCourseware, believing that everyone deserves access to a world-class education. To facilitate this goal, we have curated links to over 750 online courses and 8,500 individual online lectures, giving students of all ages unparalleled access to college courses they may otherwise never experience.

Ethereal quantum state stored in solid crystal - physics-math - 12 January 2011 ETHEREAL quantum entanglement has been captured in solid crystals, showing that it is more robust than once assumed. These entanglement traps could make quantum computing and communication more practical. In the quantum world, two or more objects can be entangled so that measuring one affects the outcome of measuring the others, no matter how far apart the objects are. This property is central to quantum cryptography, where it allows two people to be sure a secret key they shared was not intercepted, and to quantum computing, as entangled bits occupy a superposition of two or more states at once and so can be used to solve some problems much faster than conventional computers. A missing element is memory, which is needed to do complex calculations and to transmit quantum states over large distances. "Photons travel at the speed of light, which is bad for storage," says Wolfgang Tittel at the University of Calgary in Alberta, Canada.

logic and perception - topical index -The Skeptics Dictionary - Skepdic.com Last updated 20-Nov-2015 Recommended Reading Critical Thinking Mini-Lessons Space.com Buy This Infographic as a Full-Size Poster Astronomers have discovered more than 700 alien planets beyond the solar system, and the count is rising all the time. Some are large and hot, and others are smaller and cooler, but scientists are still on the lookout for an Earth twin. They just got closer, with the announcement Dec. 5 of a planet found by NASA's Kepler space telescope to lie in the habitable zone around its star where liquid water, and perhaps life, could exist. You can purchase a 20"x60" poster of this SPACE.com infographic on high-quality 14G Photo Paper from the SPACE.com store here: Buy Poster Embed: Paste the code below into your site.

The Little Handbook of Statistical Practice The Little Handbook of Statistical Practice Gerard E. Dallal, Ph.D Chief, Biostatistics Unit Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University 711 Washington Street Boston, MA 02111Gerard.Dallal@tufts.edu Logistic Regression Poisson Regression Degrees of Freedom A good case can be made that the best set of articles about statistical practice written for the practitioner is the series of Statistics Notes appearing in the British Medical Journal. Quantum Entanglement Quantum Entanglement It is possible for a particle to interact with another particle in such a way that the quantum states of the two particles form a single entangled state. The definition of an entangled state is that it is not entirely independent of other states: its state is dependent on another state in some way. Because of this dependency it is a mistake to consider either state in isolation from the other. Rather we should combine the states and treat the result as a single, entangled state. For example, a light beam is a composed of a stream of photons.

First silicon entanglement will aid quantum computing - physics-math - 19 January 2011 The state of entanglement has been created in silicon for the first time. The feat could lead to quantum computers made like ordinary computer chips. Particles in the quantum realm are entangled if the act of measuring one affects the state of the others, no matter how distant they are. As entangled particles can be in two or more states at once, the phenomenon is key to quantum computing. That's because it lets you work with many potential values simultaneously.

Related:  StumbleUponCosmos/PhysicsQuantum mechanicscurt94forsythScienceguidesCrazy Sciency Shizzlescience/knowledgescienceQuantum Mechanicsuseful?stumble!