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What makes a stone bounce repeatedly when thrown across the surface of a lake, and how many bounces can it perform? Lydéric Bocquet and Christophe Clanet explore the physics behind stone skipping
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LensRank (how we determine a lens’s popularity) will still be based on the same formula, measuring things like traffic, click-outs, reader ratings, inbound links and affiliate sales. But now we’re going to change when that formula is calculated. On Mo
Posts Tagged ‘physics’
American theoretical physicist Lee Smolin, author of “The Trouble with Physics,” states that physics has lost its way amid failed experiments and wasted funding. He cites repeated unsuccessful attempts by scientists to develop a “theory of everything,” or a single model to explain the theories of all the fundamental interactions of nature.
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Long Bets is about taking personal responsibility for ideas and opinions. Posting and betting under your true name is part of standing up for what you think. Anyone is welcome to cruise around the website anonymously, of course, but to participate in Long
Tags: BPM, CBC, cognition, cybernetics, design, experience, freedom, knowledge, model, philosophy, physics, presentations, software, systems, thinking, VSM
In
this guest editorial (August 24) in the IEEE Computer Society the
authors discuss a vision for the future of sensor networks that is
extremely compelling…. the piece serves as a great introduction to
the potential uses of Wireless Sensor Networks and the technical
challenges that come with the territory … well worth the read:
Overview of Sensor Networks by: David Culler, University of California, Berkeley; Deborah Estrin, Mani Srivastava, University of California, Los Angeles
Synopsis:
Wireless
sensor networks could advance many scientific pursuits while providing
a vehicle for enhancing various forms of productivity, including
manufacturing, agriculture, construction, and transportation.
Tags: climate, flow, intelligence, physics, sensor networks, sensors
9
Jan
links for 2006-01-09
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Robert P. Crease, a member of the philosophy department at the State University of New York at Stony Brook and the historian at Brookhaven National Laboratory, recently asked physicists to nominate the most beautiful experiment of all time. Based on the p
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Michael Crichton’s new novel “State of Fear” is about a self-important NGO hyping the science of the global warming to further the ends of evil eco-terrorists. The inevitable conclusion of the book is that global warming is a non-problem. A lesson for our
Tags: climate, experience, learning, lists, philosophy, physics
Science’s 10 most beautiful experiments (from Nytimes.com)
<i>Robert P.
Crease, a member of the philosophy department at the State University of
New York at Stony Brook and the historian at Brookhaven National
Laboratory, recently asked physicists to nominate the most beautiful
experiment of all time. Based on the paper
of George Johnson in The New York
Times we list below 10 winners of this polling and accompany
the short explanations of the physical experiments with computer
animations.</i>
Tags: physics
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NASA image of the day
Experience Hubble's Universe in 3-D
This image depicts a vast canyon of dust and gas in the Orion Nebula from a 3-D computer model based on observations by NASA's Hubble Space Telescope and created by science visualization specialists at the Space Telescope Science Institute (STScI) in Baltimore, Md. A 3-D visualization of this model takes viewers on an amazing four-minute voyage through the 15-light-year-wide canyon. The model takes viewers through an exhilarating ride through the Orion Nebula, a vast star-making factory 1,500 light-years away. This virtual space journey isn't the latest video game but one of several groundbreaking astronomy visualizations created by specialists at STScI, the science operations center for NASA's Hubble Space Telescope. The cinematic space odysseys are part of the new Imax film Hubble 3D, which opens today at select IMAX theaters worldwide. The 43-minute movie chronicles the 20-year life of Hubble and includes highlights from the May 2009 servicing mission to the Earth-orbiting observatory, with footage taken by the astronauts. The giant-screen film showcases some of Hubble's breathtaking iconic pictures, such as the Eagle Nebula's "Pillars of Creation," as well as stunning views taken by the newly installed Wide Field Camera 3. While Hubble pictures of celestial objects are awe-inspiring, they are flat 2-D photographs. For this film, those 2-D images have been converted into 3-D environments, giving the audience the impression they are space travelers taking a tour of Hubble's most popular targets. Based on a Hubble image of Orion released in 2006, the visualization was a collaborative effort between science visualization specialists at STScI, including Greg Bacon, who sculpted the Orion Nebula digital model, with input from STScI astronomer Massimo Roberto; the National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign; and the Spitzer Science Center at the California Institute of Technology in Pasadena. For some of the sequences, STScI imaging specialists developed new techniques for transforming the 2-D Hubble images into 3-D. STScI image processing specialists Lisa Frattare and Zolt Levay, for example, created methods of splitting a giant gaseous pillar in the Carina Nebula into multiple layers to produce a 3-D effect, giving the structure depth. Image Credit: NASA, G. Bacon, L. Frattare, Z. Levay, and F. Summers (STScI/AURA)
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