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Earth

Cooling the Planet With a Bubble Bath 219

Posted by Soulskill from the rubber-ducky-optional dept.
cremeglace writes "A Harvard University physicist has come up with a new way to cool parts of the planet: pump vast swarms of tiny bubbles into the sea to increase its reflectivity and lower water temperatures. 'Since water covers most of the earth, don't dim the sun,' says the scientist, Russell Seitz, speaking from an international meeting on geoengineering research. 'Brighten the water.' From ScienceNOW: 'Computer simulations show that tiny bubbles could have a profound cooling effect. Using a model that simulates how light, water, and air interact, Seitz found that microbubbles could double the reflectivity of water at a concentration of only one part per million by volume. When Seitz plugged that data into a climate model, he found that the microbubble strategy could cool the planet by up to 3C. He has submitted a paper on the concept he calls “Bright Water" to the journal Climatic Change.'"
Hardware Hacking

Home-Built Turing Machine 123

Posted by Soulskill from the i'll-order-a-dozen dept.
stronghawk writes "The creator of the Nickel-O-Matic is back at it and has now built a Turing Machine from a Parallax Propeller chip-based controller, motors, a dry-erase marker and a non-infinite supply of shiny 35mm leader film. From his FAQ: 'While thinking about Turing machines I found that no one had ever actually built one, at least not one that looked like Turing's original concept (if someone does know of one, please let me know). There have been a few other physical Turing machines like the Logo of Doom, but none were immediately recognizable as Turing machines. As I am always looking for a new challenge, I set out to build what you see here.'"
Medicine

Brain Surgery Linked To Sensation of Spirituality 380

Posted by timothy from the applied-psychology dept.
the3stars writes "'Removing part of the brain can induce inner peace, according to researchers from Italy. Their study provides the strongest evidence to date that spiritual thinking arises in, or is limited by, specific brain areas. This raises a number of interesting issues about spirituality, among them whether or not people can be born with a strong propensity towards spirituality and also whether it can be acquired through head trauma." One critic's quoted response: "It's important to recognize that the whole study is based on changes in one self-report measure, which is a coarse measure that includes some strange items."
Science

Colliding Particles Can Make Black Holes After All 269

Posted by Soulskill from the act-now-while-supplies-last dept.
cremeglace writes with this excerpt from ScienceNOW: "You've heard the controversy. Particle physicists predict the world's new highest-energy atom smasher, the Large Hadron Collider (LHC) near Geneva, Switzerland, might create tiny black holes, which they say would be a fantastic discovery. Some doomsayers fear those black holes might gobble up the Earth — physicists say that's impossible — and have petitioned the United Nations to stop the $5.5 billion LHC. Curiously, though, nobody had ever shown that the prevailing theory of gravity, Einstein's theory of general relativity, actually predicts that a black hole can be made this way. Now a computer model shows conclusively for the first time that a particle collision really can make a black hole." That said, they estimate the required energy for creating a black hole this way to be roughly "a quintillion times higher than the LHC's maximum"; though if one of the theories requiring compact extra dimensions is true, the energy could be lower.
Earth

Researchers Pooh-Pooh Algae-Based Biofuel 238

Posted by timothy from the feed-it-pooh-pooh-undies dept.
Julie188 writes "Researchers from the University of Virginia have found that current algae biofuel production methods consume more energy, have higher greenhouse gas emissions and use more water than other biofuel sources, such as switchgrass, canola and corn. The researchers suggest these problems can be overcome by situating algae production ponds behind wastewater treatment facilities to capture phosphorous and nitrogen — essential algae nutrients that otherwise need to come from petroleum."
Technology

Using EMP To Punch Holes In Steel 165

Posted by timothy from the you'll-need-some-big-batteries dept.
angrytuna writes "The Economist is running a story about a group of researchers at the Fraunhofer Institute for Machine Tools and Forming Technology in Chemnitz, Germany, who've found a way to use an EMP device to shape and punch holes through steel. The process enjoys advantages over both lasers, which take more time to bore the hole (0.2 vs. 1.4 seconds), and by metal presses, which can leave burrs that must be removed by hand."

Comment Re:I have seen the lecture you are referring too. (Score 1) 502

by 12AU7A (#30627722) Attached to: Did the US Take the Back Seat In Science In 2009?
Our nation became the worldwide leader in industry and science in the first half of the 20th century despite the fact the vast majority of the US population were religious. Stop using religion as some sort of magic cop-out to explain away all the woes of society. In some sense, I think we are victims of technological progress. Microchips came along and replaced the printed circuit boards and the wire-wrapped Heathkit projects that made building and learning more about electronics fun and enjoyable. Back in the 40's you could talk to people around the world by going down to the old TV repair shop, and picking up a box of used parts and wiring up a ham radio. Or how about those old "100 in 1" electronic kits you could get and wire all kinds of oscillators and crystal radios with? When was the last time you saw someone give their kids a chemistry set for Christmas? But, just keep blaming it on Jesus.
The Internet

Submission + - Couple Neglect Child for Internet

Submitted by 12AU7A
12AU7A writes: A couple who authorities say were so obsessed with the Internet and video games that they left their babies starving and suffering other health problems have pleaded guilty to child neglect. "Viloria said the Reno couple were too distracted by online video games, mainly the fantasy role-playing "Dungeons & Dragons" series, to give their children proper care."

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