Slashdot Mirror
Domain: weblogs.com
Stories and comments across the archive that link to weblogs.com.
Stories · 450
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Traditional Inuit Ice Treks Guided From Space
Roland Piquepaille writes "When the Arctic floe melts at spring, the Inuit are going for thousands of years to its edges for fishing and finding game. Now, they are helped by the European Space Agency (ESA) and its satellite which provide accurate maps of ice and its extent. These maps are also useful for tour guides and to improve safety. "The ESA-backed Northern View Floe Edge Information Service provides regularly updated ice maps of inlets around Lancaster Sound, part of Baffin Bay within Canada's Nunavut Territory. Users can access maps from the Floe Edge service directly via a dedicated website, or else consult printouts posted for the public by the local Parks Canada Office." This overview contains more details and references. It also includes an image generated by the Northern View Floe Edge product showing ice conditions." -
Traditional Inuit Ice Treks Guided From Space
Roland Piquepaille writes "When the Arctic floe melts at spring, the Inuit are going for thousands of years to its edges for fishing and finding game. Now, they are helped by the European Space Agency (ESA) and its satellite which provide accurate maps of ice and its extent. These maps are also useful for tour guides and to improve safety. "The ESA-backed Northern View Floe Edge Information Service provides regularly updated ice maps of inlets around Lancaster Sound, part of Baffin Bay within Canada's Nunavut Territory. Users can access maps from the Floe Edge service directly via a dedicated website, or else consult printouts posted for the public by the local Parks Canada Office." This overview contains more details and references. It also includes an image generated by the Northern View Floe Edge product showing ice conditions." -
Detecting Patterns in Complex Social Networks
Roland Piquepaille writes "So-called social networking is very popular these days, as show the proliferation of services like Friendster, Orkut and dozens of others. But do the companies behind these services have any idea of what is hidden inside their complicated networks? When these networks reach a size of millions of users, it's not an easy task. A researcher at the University of Michigan is trying to help, with a new method for uncovering patterns in complicated networks, from football conferences to food webs. This overview contains more details and references about this non-traditional method. It also includes a spectacular representation of the Internet and another image showing a food web at Little Rock Lake." -
Detecting Patterns in Complex Social Networks
Roland Piquepaille writes "So-called social networking is very popular these days, as show the proliferation of services like Friendster, Orkut and dozens of others. But do the companies behind these services have any idea of what is hidden inside their complicated networks? When these networks reach a size of millions of users, it's not an easy task. A researcher at the University of Michigan is trying to help, with a new method for uncovering patterns in complicated networks, from football conferences to food webs. This overview contains more details and references about this non-traditional method. It also includes a spectacular representation of the Internet and another image showing a food web at Little Rock Lake." -
Diamond Age Coming Soon
Roland Piquepaille writes "In 'The many facets of man-made diamonds,' Chemical & Engineering News (C&EN) writes that synthetic diamonds are getting bigger and cheaper. An example: for Valentine's Day, you can buy a yellow colored man-made diamond, visibly indistinguishable from a natural one, for $4,000 per carat. This is a 30% discount when compared with a natural diamond. This very long article also says that if synthetic diamond makers are targeting the jewelry market first, these new products will have an impact on many other industries. Not only is it now possible to grow bigger diamonds, you also can choose their color. 'Colored diamonds, which are valuable and very rare, can be created by introducing carefully controlled elemental impurities into the stone,' says C&EN. For instance, nitrogen produces a yellow stone. Infusing boron into the growing diamond produces a blue gem. This overview contains some details, references and photos of men-made diamonds, but read the original article for even more technical explanations if you have the time." -
Diamond Age Coming Soon
Roland Piquepaille writes "In 'The many facets of man-made diamonds,' Chemical & Engineering News (C&EN) writes that synthetic diamonds are getting bigger and cheaper. An example: for Valentine's Day, you can buy a yellow colored man-made diamond, visibly indistinguishable from a natural one, for $4,000 per carat. This is a 30% discount when compared with a natural diamond. This very long article also says that if synthetic diamond makers are targeting the jewelry market first, these new products will have an impact on many other industries. Not only is it now possible to grow bigger diamonds, you also can choose their color. 'Colored diamonds, which are valuable and very rare, can be created by introducing carefully controlled elemental impurities into the stone,' says C&EN. For instance, nitrogen produces a yellow stone. Infusing boron into the growing diamond produces a blue gem. This overview contains some details, references and photos of men-made diamonds, but read the original article for even more technical explanations if you have the time." -
Fly Over Mars... in a Robotic Balloon
Roland Piquepaille writes "A Californian company, Global Aerospace Corporation (GAR), is developing remote-controlled balloons for the NASA Institute for Advanced Concepts (NIAC). BBC News Online reports that their goal is to send these balloons carrying robots and cameras to explore Mars skies. But it's not for a near term future. The robotic StratoSail will have a stabilizing wing suspended several miles below it. It will be able to stay above Mars for months. It will send robotic probes to monitor the surface and minilabs to carry out experiments. This overview contains more details, references and images about the StratoSail." -
Fly Over Mars... in a Robotic Balloon
Roland Piquepaille writes "A Californian company, Global Aerospace Corporation (GAR), is developing remote-controlled balloons for the NASA Institute for Advanced Concepts (NIAC). BBC News Online reports that their goal is to send these balloons carrying robots and cameras to explore Mars skies. But it's not for a near term future. The robotic StratoSail will have a stabilizing wing suspended several miles below it. It will be able to stay above Mars for months. It will send robotic probes to monitor the surface and minilabs to carry out experiments. This overview contains more details, references and images about the StratoSail." -
Microsoft's Search Engine Plans
prostoalex writes "Andy Beal from SearchEngineGuide.com interviews Robert Scoble from Microsoft. Scoble tells the audience what current search technologies Microsoft is working on as part of its Longhorn/WinFS development as well as in the field of Internet. Scoble also discusses current problems with local drive and Internet searching, such as absence of metadata for a lot of files out there: "When I take pictures off of my Nikon, they have some metadata (for instance, inside the file is the date it was taken, along with the exposure information) but that metadata isn't useful for most human searches. For instance, how about if I wanted to search for "my wedding photos?" Neither X1, nor Windows XP's built in search would find your wedding photos. Why? Because they have useless names like DSC0001.jpg and there's no metadata that says they are wedding photos."" -
The Swarmbots Are Coming
Roland Piquepaille writes "For its latest issue, Wired Magazine asked several experts to tell us how the convergence between technology and biology was transforming their respective fields, from transportation to art, and even redefining life as we know it. In this special report, Living Machines, you'll discover that the nonliving world is very much alive. This summary is focused on one of the seven articles, which talks about ant algorithms and swarmbots. "Typically, a swarm bot is a collection of simple robots (s-bots) that self-organize according to algorithms inspired by the bridge-building and task-allocation activities of ants." And ant algorithms are used today to solve human problems especially in distribution and logistics." -
The Swarmbots Are Coming
Roland Piquepaille writes "For its latest issue, Wired Magazine asked several experts to tell us how the convergence between technology and biology was transforming their respective fields, from transportation to art, and even redefining life as we know it. In this special report, Living Machines, you'll discover that the nonliving world is very much alive. This summary is focused on one of the seven articles, which talks about ant algorithms and swarmbots. "Typically, a swarm bot is a collection of simple robots (s-bots) that self-organize according to algorithms inspired by the bridge-building and task-allocation activities of ants." And ant algorithms are used today to solve human problems especially in distribution and logistics." -
Rosetta, the Comet Hunter
Roland Piquepaille writes: "After being delayed for about a year because of a failure of the Ariane-5 rocket, the Rosetta spacecraft is scheduled to be launched on February 26. Rosetta is a special spacecraft, including an orbiter and a lander. And it will take up to 2014 before landing on Comet 67P/Churyumov-Gerasimenko -- with the help of a harpoon. Then, as says the European Space Agency (ESA), Rosetta will help to solve planetary mysteries. This news release looks at the goals of Rosetta's mission and explains why it will take more than ten years to reach the comet. But here the 'funny' part of the story: the landing. 'In November 2014, the lander will be ejected from the spacecraft from a height which could be as low as one kilometre. Touchdown will be at walking speed, about one metre per second. Immediately after touchdown, the lander will fire a harpoon into the ground to avoid bouncing off the surface back into space, since the comet's extremely weak gravity alone would not hold onto the lander.' This overview contains more details and includes illustrations of the Rosetta's spacecraft and its landing on the comet." -
Rosetta, the Comet Hunter
Roland Piquepaille writes: "After being delayed for about a year because of a failure of the Ariane-5 rocket, the Rosetta spacecraft is scheduled to be launched on February 26. Rosetta is a special spacecraft, including an orbiter and a lander. And it will take up to 2014 before landing on Comet 67P/Churyumov-Gerasimenko -- with the help of a harpoon. Then, as says the European Space Agency (ESA), Rosetta will help to solve planetary mysteries. This news release looks at the goals of Rosetta's mission and explains why it will take more than ten years to reach the comet. But here the 'funny' part of the story: the landing. 'In November 2014, the lander will be ejected from the spacecraft from a height which could be as low as one kilometre. Touchdown will be at walking speed, about one metre per second. Immediately after touchdown, the lander will fire a harpoon into the ground to avoid bouncing off the surface back into space, since the comet's extremely weak gravity alone would not hold onto the lander.' This overview contains more details and includes illustrations of the Rosetta's spacecraft and its landing on the comet." -
Robots for No Man's Land
Roland Piquepaille writes "The Stryker is an 18-ton infantry vehicle, already deployed by the U.S. army in places such as Iraq. Right now, it has human drivers. But that will no longer be the case by 2010, when it will be driven by a robot. Today, the Stryker has a 'ladar' scanner, which emits 400,000 laser and radar beams and snaps 120 images every second. 'Its brain -- a 40-pound computer system tucked inside its body -- processes that data, and makes instant judgments on how to act and where to go.' These robots are developed by General Dynamics Robotic Systems, Inc. (GDRSI), which received $185 million last November to build between 30 and 60 automated-navigation prototypes to be used in all kinds of military vehicles. This overview contains more details, references and photographs." -
Robots for No Man's Land
Roland Piquepaille writes "The Stryker is an 18-ton infantry vehicle, already deployed by the U.S. army in places such as Iraq. Right now, it has human drivers. But that will no longer be the case by 2010, when it will be driven by a robot. Today, the Stryker has a 'ladar' scanner, which emits 400,000 laser and radar beams and snaps 120 images every second. 'Its brain -- a 40-pound computer system tucked inside its body -- processes that data, and makes instant judgments on how to act and where to go.' These robots are developed by General Dynamics Robotic Systems, Inc. (GDRSI), which received $185 million last November to build between 30 and 60 automated-navigation prototypes to be used in all kinds of military vehicles. This overview contains more details, references and photographs." -
Virtual Dummy To Try On Clothes
Roland Piquepaille writes "BBC News reports that Toshiba is working with a Japanese software company to create a 3-D fashion simulator that will allow virtual modelling and coordination of clothes, cosmetics and accessories in real time. This means that by as early as 2006, you will no longer have to contortion yourself in a minuscule fitting room. 'Video cameras snap the shopper, then clothes and accessories are selected and displayed immediately. The process of turning the images of the shopper into photo-realistic avatar -- or virtual representation -- happens in real-time.' This summary contains more details and references. It also contains images of a virtual model trying different clothes and accessories adapted to different backgrounds." -
Virtual Dummy To Try On Clothes
Roland Piquepaille writes "BBC News reports that Toshiba is working with a Japanese software company to create a 3-D fashion simulator that will allow virtual modelling and coordination of clothes, cosmetics and accessories in real time. This means that by as early as 2006, you will no longer have to contortion yourself in a minuscule fitting room. 'Video cameras snap the shopper, then clothes and accessories are selected and displayed immediately. The process of turning the images of the shopper into photo-realistic avatar -- or virtual representation -- happens in real-time.' This summary contains more details and references. It also contains images of a virtual model trying different clothes and accessories adapted to different backgrounds." -
Do Plants Practice Grid Computing?
Roland Piquepaille writes "According to Nature, plants appear to 'think' and seem to optimize their 'breathing' by conducting simple calculations through a distributed computing scheme. "David Peak and co-workers at Utah State University in Logan say that plants may regulate their uptake and loss of gases by 'distributed computation' -- a kind of information processing that involves communication between many interacting units." Nature adds this is similar to signals exchanged by ants to find the best source of food for an ant community. In their paper, the researchers added that their results were "consistent with the proposition that a plant solves its optimal gas exchange problem through an emergent, distributed computation performed by its leaves." This overview contains more details and references. It also includes a picture of the tiny pores on the surface of a cactus leaf, called stomata, which permit the plant to breathe when they're opened." -
Do Plants Practice Grid Computing?
Roland Piquepaille writes "According to Nature, plants appear to 'think' and seem to optimize their 'breathing' by conducting simple calculations through a distributed computing scheme. "David Peak and co-workers at Utah State University in Logan say that plants may regulate their uptake and loss of gases by 'distributed computation' -- a kind of information processing that involves communication between many interacting units." Nature adds this is similar to signals exchanged by ants to find the best source of food for an ant community. In their paper, the researchers added that their results were "consistent with the proposition that a plant solves its optimal gas exchange problem through an emergent, distributed computation performed by its leaves." This overview contains more details and references. It also includes a picture of the tiny pores on the surface of a cactus leaf, called stomata, which permit the plant to breathe when they're opened." -
World's Largest Flower Mystery Solved
Roland Piquepaille writes "The world's largest flower, called Rafflesia, can have a diameter up to one meter and can weigh up to 10 kilograms. It also smells like rotting flesh. Discovery News tells us that its genetic roots have been uncovered and that this plant that smells so bad is related to delicate flowers such as poinsettias or violets. The researchers analyzed the Rafflesia's mitochondrial DNA (mtDNA), which corresponds to chloroplast DNA. The mtDNA studies revealed that the large, stinky flower is related to more normal-sized, pleasantly fragrant posies, like passionflowers, and other members of the order Malpighiales. This overview contains more details and references. It also includes two photographs revealing the size of the rafflesia when held by a man, as well as details of the flower itself." -
World's Largest Flower Mystery Solved
Roland Piquepaille writes "The world's largest flower, called Rafflesia, can have a diameter up to one meter and can weigh up to 10 kilograms. It also smells like rotting flesh. Discovery News tells us that its genetic roots have been uncovered and that this plant that smells so bad is related to delicate flowers such as poinsettias or violets. The researchers analyzed the Rafflesia's mitochondrial DNA (mtDNA), which corresponds to chloroplast DNA. The mtDNA studies revealed that the large, stinky flower is related to more normal-sized, pleasantly fragrant posies, like passionflowers, and other members of the order Malpighiales. This overview contains more details and references. It also includes two photographs revealing the size of the rafflesia when held by a man, as well as details of the flower itself." -
Chemists Crack Secrets of Mussels' Super Glue
Roland Piquepaille writes "Researchers from Purdue University working under an award from the National Science Foundation (NSF) have discovered that common blue mussels are using iron found in seawater to create their own super glue. "In addition to using the knowledge to develop safer alternatives for surgical and household glues, the researchers are looking at how to combat the glue to prevent damage to shipping vessels and the accidental transport of invasive species, such as the zebra mussel that has ravaged the midwestern United States." This overview contains more details and references about this discovery. You'll also find an image of mussel glue at a magnification of 25,000X and one of a mussel adhering to a sheet of Teflon." -
Chemists Crack Secrets of Mussels' Super Glue
Roland Piquepaille writes "Researchers from Purdue University working under an award from the National Science Foundation (NSF) have discovered that common blue mussels are using iron found in seawater to create their own super glue. "In addition to using the knowledge to develop safer alternatives for surgical and household glues, the researchers are looking at how to combat the glue to prevent damage to shipping vessels and the accidental transport of invasive species, such as the zebra mussel that has ravaged the midwestern United States." This overview contains more details and references about this discovery. You'll also find an image of mussel glue at a magnification of 25,000X and one of a mussel adhering to a sheet of Teflon." -
For Champagne Bubbles, Smaller Is Better
Roland Piquepaille writes "During this holiday season you don't need a special occasion to drink champagne. You can do it everyday, providing you use moderation and common sense. But did you know that champagne taste better when it has tiny bubbles? This is the result of a very serious study published by the American Chemical Society (ACS) and more recently found by the Discovery Channel. And why do you think champagne taste better when carrying smaller bubbles? The answer is pretty obvious. More bubbles are releasing the champagne's flavor and aroma into your mouth. This summary gives you more details. In the mean time, let's all drink champagne!" -
For Champagne Bubbles, Smaller Is Better
Roland Piquepaille writes "During this holiday season you don't need a special occasion to drink champagne. You can do it everyday, providing you use moderation and common sense. But did you know that champagne taste better when it has tiny bubbles? This is the result of a very serious study published by the American Chemical Society (ACS) and more recently found by the Discovery Channel. And why do you think champagne taste better when carrying smaller bubbles? The answer is pretty obvious. More bubbles are releasing the champagne's flavor and aroma into your mouth. This summary gives you more details. In the mean time, let's all drink champagne!" -
Is WiFi Access Worth $10/hour?
Roland Piquepaille writes "This special report from CNET News.com carries an eloquent subtitle: 'Wireless expectations rose in 2003, but growth was hobbled by security concerns and unproven business models.' It's much worse than you think and I'm going to tell you why Wi-Fi will still not be broadly used in 2004 in this column. Technology columnists are usually looking at their own part of the world, in Silicon Valley or on the East Coast of the U.S. And obviously, their opinions are largely biased. Our world is much bigger than that. My arguments are based on real-world examples, both in Greece and in Paris. They're also based on costs of access. Paying $10 an hour for Wi-Fi access is almost twice as you pay for a movie. Would you pay $20 to see a movie? Probably not. So will you pay $10 to use a Wi-Fi connection for one hour? Certainly not." -
Is WiFi Access Worth $10/hour?
Roland Piquepaille writes "This special report from CNET News.com carries an eloquent subtitle: 'Wireless expectations rose in 2003, but growth was hobbled by security concerns and unproven business models.' It's much worse than you think and I'm going to tell you why Wi-Fi will still not be broadly used in 2004 in this column. Technology columnists are usually looking at their own part of the world, in Silicon Valley or on the East Coast of the U.S. And obviously, their opinions are largely biased. Our world is much bigger than that. My arguments are based on real-world examples, both in Greece and in Paris. They're also based on costs of access. Paying $10 an hour for Wi-Fi access is almost twice as you pay for a movie. Would you pay $20 to see a movie? Probably not. So will you pay $10 to use a Wi-Fi connection for one hour? Certainly not." -
Fighting Cancer With The Common Cold?
Roland Piquepaille writes "After 30 years of work, Saint Louis University researchers have genetically engineered a common cold virus to fight cancerous cells while leaving unaffected healthy ones. They received a patent for this research and clinical tests on humans will start soon, according to this news release. Dr. William Wold, chair of the department of molecular microbiology and immunology, received the patent No. 6,627,190 for his work. Preclinical testing has already been done so clinical trials should start soon. We can only hope they will be successful. This overview contains many more details and references about this potential cure for all kinds of cancer. [Note: this is a very different project from the one mentioned by a previous Slashdot post.]" -
Fighting Cancer With The Common Cold?
Roland Piquepaille writes "After 30 years of work, Saint Louis University researchers have genetically engineered a common cold virus to fight cancerous cells while leaving unaffected healthy ones. They received a patent for this research and clinical tests on humans will start soon, according to this news release. Dr. William Wold, chair of the department of molecular microbiology and immunology, received the patent No. 6,627,190 for his work. Preclinical testing has already been done so clinical trials should start soon. We can only hope they will be successful. This overview contains many more details and references about this potential cure for all kinds of cancer. [Note: this is a very different project from the one mentioned by a previous Slashdot post.]" -
Living on Mars Time
Roland Piquepaille writes "When NASA's rovers, 'Spirit' and 'Opportunity,' touch down on Mars next January, scientists and engineers in charge of the missions at the Jet Propulsion Laboratory (JPL), will start to experiment with a 90-day period of jet lag. Why? Because, as reports Astrobiology Magazine, 'a day on Mars is 39.5 minutes longer than a day on Earth.' To accommodate the requirements of interplanetary communication, during the mission the Spirit science and engineering teams will have to live on Mars time, in synch with the red planet's cycle of light and dark. This means that, here on Earth, they'll sometimes be working during daylight hours, and at other times they'll be working through the night. This summary contains more details and a screenshot of the Mars24 application, a Java program which gives you the time on Mars." -
Living on Mars Time
Roland Piquepaille writes "When NASA's rovers, 'Spirit' and 'Opportunity,' touch down on Mars next January, scientists and engineers in charge of the missions at the Jet Propulsion Laboratory (JPL), will start to experiment with a 90-day period of jet lag. Why? Because, as reports Astrobiology Magazine, 'a day on Mars is 39.5 minutes longer than a day on Earth.' To accommodate the requirements of interplanetary communication, during the mission the Spirit science and engineering teams will have to live on Mars time, in synch with the red planet's cycle of light and dark. This means that, here on Earth, they'll sometimes be working during daylight hours, and at other times they'll be working through the night. This summary contains more details and a screenshot of the Mars24 application, a Java program which gives you the time on Mars." -
The Future of Flight
Roland Piquepaille writes "With "High Times," the Economist delivers a very long and extremely well-documented article about the future of aviation during the next fifty years. It tells us about pilotless planes, with 32 countries currently developing more than 250 models of unmanned aerial vehicles (UAV), primarily for combat purposes. The article also looks at future civilian pilotless planes and at the future of personal aviation. But what captivated my attention in this article was the last part about future commercial supersonic and hypersonic (at least five times the speed of sound) planes. In particular, the Economist describes the HyperSoar. "The HyperSoar is a concept for a craft flying at ten times the speed of sound and able to reach any point on the globe within two hours." This overview contains more details and references about the HyperSoar which would fly from Los Angeles to New York in 35 minutes." -
The Future of Flight
Roland Piquepaille writes "With "High Times," the Economist delivers a very long and extremely well-documented article about the future of aviation during the next fifty years. It tells us about pilotless planes, with 32 countries currently developing more than 250 models of unmanned aerial vehicles (UAV), primarily for combat purposes. The article also looks at future civilian pilotless planes and at the future of personal aviation. But what captivated my attention in this article was the last part about future commercial supersonic and hypersonic (at least five times the speed of sound) planes. In particular, the Economist describes the HyperSoar. "The HyperSoar is a concept for a craft flying at ten times the speed of sound and able to reach any point on the globe within two hours." This overview contains more details and references about the HyperSoar which would fly from Los Angeles to New York in 35 minutes." -
Would Ansel Adams Have Gone Digital?
Roland Piquepaille writes "After viewing photographs by Christopher Burkett, which are not digitally manipulated, Peter Lewis wondered what place have digital cameras and image manipulations in the art of photography. And a question hit his mind. If Ansel Adams, one of the most famous photographers of the 20th century, was still alive, would have he gone digital? Lewis talked at great length with Richard LoPinto, vice president for SLR camera systems at Nikon Inc. to find an answer. And guess what? LoPinto thinks Ansel Adams would have loved digital cameras. The article also discusses digital camera resolution and the future for film camera sales. This overview contains more details and a small photograph by Christopher Burkett." -
Would Ansel Adams Have Gone Digital?
Roland Piquepaille writes "After viewing photographs by Christopher Burkett, which are not digitally manipulated, Peter Lewis wondered what place have digital cameras and image manipulations in the art of photography. And a question hit his mind. If Ansel Adams, one of the most famous photographers of the 20th century, was still alive, would have he gone digital? Lewis talked at great length with Richard LoPinto, vice president for SLR camera systems at Nikon Inc. to find an answer. And guess what? LoPinto thinks Ansel Adams would have loved digital cameras. The article also discusses digital camera resolution and the future for film camera sales. This overview contains more details and a small photograph by Christopher Burkett." -
Viewing Inside the Earth
Roland Piquepaille writes "Last week, a study released by Princeton University said that geoscientists have captured images of the interior of the Earth by using techniques similar to body scanning by physicians. This study also revealed in-depth structures which might explain how our planet is changing -- and aging. They studied more than 86,000 earthquakes which occurred since 1964. And they found 32 "mantle plumes" which are believed to cause island chains, such as the Hawaiian Islands and Iceland. They have been conjectured thirty years ago, but this is the first visual evidence they exist. This overview contains more details and references, including a rendering of mantle plumes in action." -
Viewing Inside the Earth
Roland Piquepaille writes "Last week, a study released by Princeton University said that geoscientists have captured images of the interior of the Earth by using techniques similar to body scanning by physicians. This study also revealed in-depth structures which might explain how our planet is changing -- and aging. They studied more than 86,000 earthquakes which occurred since 1964. And they found 32 "mantle plumes" which are believed to cause island chains, such as the Hawaiian Islands and Iceland. They have been conjectured thirty years ago, but this is the first visual evidence they exist. This overview contains more details and references, including a rendering of mantle plumes in action." -
Nanotechnology: Are Molecular Assemblers Possible?
Roland Piquepaille writes "Two experts in the field of nanotechnology, K. Eric Drexler, Ph.D., cofounder of the Foresight Institute in Palo Alto, Calif., and the person who coined the term "nanotechnology," and Richard E. Smalley, Ph.D., a professor at Rice University and winner of the 1996 Nobel Prize in Chemistry, exchanged open letters about "molecular assemblers" -- devices capable of positioning atoms and molecules for precisely defined reactions in almost any environment. These letters are making the -- long -- cover story of the current issue of Chemical & Engineering News. At the end of this rich exchange of four letters, they still disagree about the issue. Drexler thinks "molecular assemblers" are possible while Smalley denies it. Who is right? Don't count on me to give an answer. This summary contains some forceful quotes from the original letters." -
Nanotechnology: Are Molecular Assemblers Possible?
Roland Piquepaille writes "Two experts in the field of nanotechnology, K. Eric Drexler, Ph.D., cofounder of the Foresight Institute in Palo Alto, Calif., and the person who coined the term "nanotechnology," and Richard E. Smalley, Ph.D., a professor at Rice University and winner of the 1996 Nobel Prize in Chemistry, exchanged open letters about "molecular assemblers" -- devices capable of positioning atoms and molecules for precisely defined reactions in almost any environment. These letters are making the -- long -- cover story of the current issue of Chemical & Engineering News. At the end of this rich exchange of four letters, they still disagree about the issue. Drexler thinks "molecular assemblers" are possible while Smalley denies it. Who is right? Don't count on me to give an answer. This summary contains some forceful quotes from the original letters." -
Eating in Space
Roland Piquepaille writes "What do you think astronauts aboard the International Space Station (ISS) ate for Thanksgiving? Roasted turkey? Wrong answer. In "Orbital Thanksgiving," NASA tells us they had tortillas and gives details about food in space. If the dining view, 200 miles over the Earth, is great, preparing meals is quite a challenge. For example, there is no refrigerator or freezer aboard the Station, so food must remain good for long periods at room temperature. And you need to avoid crumbs which could float around. This is why tortillas are favored over bread. This overview contains additional references and includes a picture of a cosmonaut preparing food in the ISS galley." -
Eating in Space
Roland Piquepaille writes "What do you think astronauts aboard the International Space Station (ISS) ate for Thanksgiving? Roasted turkey? Wrong answer. In "Orbital Thanksgiving," NASA tells us they had tortillas and gives details about food in space. If the dining view, 200 miles over the Earth, is great, preparing meals is quite a challenge. For example, there is no refrigerator or freezer aboard the Station, so food must remain good for long periods at room temperature. And you need to avoid crumbs which could float around. This is why tortillas are favored over bread. This overview contains additional references and includes a picture of a cosmonaut preparing food in the ISS galley." -
A Robot Carries Humans, Another One Plays Flute
Roland Piquepaille writes "The New Scientist says that a robot able to carry humans was demonstrated in Tokyo. The robot, developed at Waseda University in Tokyo and the Japanese robotics company tmsuk, 'uses 12 actuators to move forwards, backwards and sideways while carrying an adult weighing up to 60 kilograms (130 pounds).' It will be used 'in the fields of welfare, as an alternative to wheelchairs, which can go up and down stairs.' The Takanishi Laboratory carries other projects, including a flutist robot. More details and references are contained in this overview, which also includes a picture of the flutist robot in concert." -
A Robot Carries Humans, Another One Plays Flute
Roland Piquepaille writes "The New Scientist says that a robot able to carry humans was demonstrated in Tokyo. The robot, developed at Waseda University in Tokyo and the Japanese robotics company tmsuk, 'uses 12 actuators to move forwards, backwards and sideways while carrying an adult weighing up to 60 kilograms (130 pounds).' It will be used 'in the fields of welfare, as an alternative to wheelchairs, which can go up and down stairs.' The Takanishi Laboratory carries other projects, including a flutist robot. More details and references are contained in this overview, which also includes a picture of the flutist robot in concert." -
Atoms Receive 'Movie Star' Treatment
Roland Piquepaille writes "A news release from the University of Toronto (U of T) says that a team of chemists has successfully captured images of atoms during the melting of aluminum. "Chemists at the University of Toronto have captured atom-scale images of the melting process-revealing the first images of the transition of a solid into a liquid at the timescale of femtoseconds, or millionths of a billionth of a second. The result is an unprecedented "movie" detailing the melting process as solid aluminum becomes a liquid." Can this be useful for you? Probably not. But these chemists think they have a new valuable tool which will allow them to make atomic movies of other chemical reactions. This summary contains more details and additional references." -
Atoms Receive 'Movie Star' Treatment
Roland Piquepaille writes "A news release from the University of Toronto (U of T) says that a team of chemists has successfully captured images of atoms during the melting of aluminum. "Chemists at the University of Toronto have captured atom-scale images of the melting process-revealing the first images of the transition of a solid into a liquid at the timescale of femtoseconds, or millionths of a billionth of a second. The result is an unprecedented "movie" detailing the melting process as solid aluminum becomes a liquid." Can this be useful for you? Probably not. But these chemists think they have a new valuable tool which will allow them to make atomic movies of other chemical reactions. This summary contains more details and additional references." -
Is Space Mining Feasible?
Roland Piquepaille writes "There is a large amount of precious minerals on the Moon and Mars. Would it be feasible to bring these valuable materials back on Earth? Space.com says that mining specialists and space engineers, who gathered at the latest Space Resources Roundtable, think the answer is yes. But there are many issues to solve. The first one is to build a permanent base. Then, you have to live on space resources. The article looks at other issues, such as strategic and economic potentials, before examining legal concerns about working conditions and extraterrestrial resource ownership. As the article says about lawyers, it 'turns out you can't leave Earth without them.' This summary contains more details and a rendering of a possible commercial Lunar base." -
Is Space Mining Feasible?
Roland Piquepaille writes "There is a large amount of precious minerals on the Moon and Mars. Would it be feasible to bring these valuable materials back on Earth? Space.com says that mining specialists and space engineers, who gathered at the latest Space Resources Roundtable, think the answer is yes. But there are many issues to solve. The first one is to build a permanent base. Then, you have to live on space resources. The article looks at other issues, such as strategic and economic potentials, before examining legal concerns about working conditions and extraterrestrial resource ownership. As the article says about lawyers, it 'turns out you can't leave Earth without them.' This summary contains more details and a rendering of a possible commercial Lunar base." -
Smart Badges For Better Meetings
Roland Piquepaille writes "In an article appearing in the November 15th issue of New Scientist, we're told that the 500 attendants of the last Pop!Tech conference were carrying intelligent badges to put around their necks. EurekAlert! has released a version of this article, "Hello, will you be my friend?" These nTAGs, distributed by the nTAG Interactive company, contained personal details about their wearers. And as the nTags can communicate with each other via infrared links, they are able to send alerts when they see a good match between two owners. This doesn't come up cheap: expect $40 to $100 per badge per day, depending on the event. More details and references are contained in this overview which also includes pictures." -
Smart Badges For Better Meetings
Roland Piquepaille writes "In an article appearing in the November 15th issue of New Scientist, we're told that the 500 attendants of the last Pop!Tech conference were carrying intelligent badges to put around their necks. EurekAlert! has released a version of this article, "Hello, will you be my friend?" These nTAGs, distributed by the nTAG Interactive company, contained personal details about their wearers. And as the nTags can communicate with each other via infrared links, they are able to send alerts when they see a good match between two owners. This doesn't come up cheap: expect $40 to $100 per badge per day, depending on the event. More details and references are contained in this overview which also includes pictures." -
Send Emails After Your Death
Roland Piquepaille writes "As you all know, the two things in life you can't avoid are taxes and death. But if you will no longer have to pay taxes after your death, you will be able to send email thanks to a new service, Mylastemail.com. The Los Angeles Times (free registration needed) says this service will cost you $9.99 for a three-year subscription. The company says you can update your farewell messages from anywhere in the world, including cybercafes or airports." If it's not a hoax, it's a pretty cool service.