 |
|
Ice Scalpel For Explosives
April 29, 2005How can a tin be opened if it contains not tinned goods but explosives? Or a shell or something no less dangerous, for instance, a retired nuclear reactor?
Certainly, metal can be cut up mechanically, but this is very dangerous. Torch flame or laser beam do not suit the purpose even more so. However, a sheet of water released at high pressure, particularly if additionally saturated with a stream of frozen drops, would probably suit.
The researchers from the Tula State University are sure of that.
They suggest that morally and physically obsolete ammunition should be reclaimed in this particular way - the casing should be cut up and explosives should be washed out. In their opinion, this is the safest way, also from the ecological point of view, to separate metal from nitrocompounds - explosive and powder. Information about that is contained in the advanced research database maintained by the International Science and Technology Center.
Evidently, it is not easy to produce such installation. The object itself is very dangerous. An incautious movement, blow, vibration is enough - and the explosion is inevitable. The stream should be sufficiently strong to be able to cut up metal and then to wash the content out of the casing without provoking the explosion. Besides, the equipment should be operated remotedly, it should be safe not only in the broad sense of the word, but also ecologically secure, and finally it should operate quickly and economically - spending minimum time and energy.
Therefore, from the point of view of the authors, first of all, it is necessary to carry out a phase of theoretical study. First, it is necessary to analyze physical processes taking place in a shell, when sheet of water at high pressure is directed at it, to clarify how explosives would respond to this impact. If a stream of icy granules flying at enormous velocity is used, it is necessary to create the pattern of their formation. It is necessary to investigate how the stream of compressed air, liquid and refrigerating medium may be transformed into a stream of racing pieces of ice. It is necessary to calculate how such abrasive will interact with explosive, and then the researchers can pass to experiments and create their own installation.
In general, it is known that abrasive - the finest bits of hard material - can be added to the sheet of water. Then, figuratively speaking, percussion force of sheet of water will be much more. The researchers have already developed and tested such experimental setup at the Skuratov engineering plant. A liquid jet with abrasive powder - for the time present without pieces of ice - easily cuts up aluminium alloy plate A10, about 3 millimeters thick, and steel angle bar 6 millimeters thick. This can be done rather quickly - depending on the object - at the velocity from 0.5 through 3.2 millimeters per second.
However, this installation is demonstration of the method's possibilities, rather than the final result. The authors are sure that in the future they will be able also to create compact mobile installations. With their help, pressure of the stream on the surface of the object will be measured by dozens of thousands of atmospheres.
The researchers also tried to wash various types of explosives out of ammunition through the fuse opening. The stream parameters selected by the authors based on mathematical calculations allowed to perform that efficiently and accurately. Then the bits of explosives may be simply drained and the clean water can be reused.
On top of that, the method should be economical enough - quick, convenient and inexpensive, and also ecologically secure for the environment. It is worth noting that the probability of explosion in this case should be completely excluded.
For the time being, an "ideal" installation - small, efficient and secure - has not been created yet. A number of theoretical and practical tasks are pending resolution. However, the experience in the area of basic research and experimental investigation accumulated by the group of researchers under the guidance of Professor Brenner, honoured worker of science and engineering of the Russian Federation, is the evidence that the researchers are capable of solving tasks of this kind.
Informnauka (Informscience) Agency
Evidently, it is not easy to produce such installation. The object itself is very dangerous. An incautious movement, blow, vibration is enough - and the explosion is inevitable. The stream should be sufficiently strong to be able to cut up metal and then to wash the content out of the casing without provoking the explosion. Besides, the equipment should be operated remotedly, it should be safe not only in the broad sense of the word, but also ecologically secure, and finally it should operate quickly and economically - spending minimum time and energy.
Therefore, from the point of view of the authors, first of all, it is necessary to carry out a phase of theoretical study. First, it is necessary to analyze physical processes taking place in a shell, when sheet of water at high pressure is directed at it, to clarify how explosives would respond to this impact. If a stream of icy granules flying at enormous velocity is used, it is necessary to create the pattern of their formation. It is necessary to investigate how the stream of compressed air, liquid and refrigerating medium may be transformed into a stream of racing pieces of ice. It is necessary to calculate how such abrasive will interact with explosive, and then the researchers can pass to experiments and create their own installation.
In general, it is known that abrasive - the finest bits of hard material - can be added to the sheet of water. Then, figuratively speaking, percussion force of sheet of water will be much more. The researchers have already developed and tested such experimental setup at the Skuratov engineering plant. A liquid jet with abrasive powder - for the time present without pieces of ice - easily cuts up aluminium alloy plate A10, about 3 millimeters thick, and steel angle bar 6 millimeters thick. This can be done rather quickly - depending on the object - at the velocity from 0.5 through 3.2 millimeters per second.
However, this installation is demonstration of the method's possibilities, rather than the final result. The authors are sure that in the future they will be able also to create compact mobile installations. With their help, pressure of the stream on the surface of the object will be measured by dozens of thousands of atmospheres.
The researchers also tried to wash various types of explosives out of ammunition through the fuse opening. The stream parameters selected by the authors based on mathematical calculations allowed to perform that efficiently and accurately. Then the bits of explosives may be simply drained and the clean water can be reused.
On top of that, the method should be economical enough - quick, convenient and inexpensive, and also ecologically secure for the environment. It is worth noting that the probability of explosion in this case should be completely excluded.
For the time being, an "ideal" installation - small, efficient and secure - has not been created yet. A number of theoretical and practical tasks are pending resolution. However, the experience in the area of basic research and experimental investigation accumulated by the group of researchers under the guidance of Professor Brenner, honoured worker of science and engineering of the Russian Federation, is the evidence that the researchers are capable of solving tasks of this kind.
Informnauka (Informscience) Agency
Nuclear Current Events and Nuclear News RSSScientists watch as peptides control crystal growth with 'switches, throttles and brakes'
By producing some of the highest resolution images of peptides attaching to mineral surfaces, scientists have a deeper understanding how biomolecules manipulate the growth crystals. This research may lead to a new treatment for kidney stones using biomolecules.
Genetic analysis helps dissect molecular basis of cardiovascular disease
Using highly precise measurements of plasma lipoprotein concentrations determined by nuclear magnetic resonance spectroscopy (NMR), researchers led by Daniel Chasman at Brigham and Women's Hospital and Harvard Medical School in Boston, MA, the Framingham Heart Study in Framingham, and the PROCARDIS consortium in Stockholm, Sweden and Oxford, England performed genetic association analysis across the whole genome among 17,296 women of European ancestry from the Women's Genome Health Study.
Is global warming unstoppable?
In a provocative new study, a University of Utah scientist argues that rising carbon dioxide emissions - the major cause of global warming - cannot be stabilized unless the world's economy collapses or society builds the equivalent of one new nuclear power plant each day.
Nuclear weapons: Predicting the unthinkable
If a nuclear weapon were detonated in a metropolitan area, how large would the affected area be? Where should first responders first go? According to physicist Fernando Grinstein, we have some initial understanding to address these questions, but fundamental issues remain unresolved.
An atomic-level look at an HIV accomplice
Since the discovery in 2007 that a component of human semen called SEVI boosts infectivity of the virus that causes AIDS, researchers have been trying to learn more about SEVI and how it works, in hopes of thwarting its infection-promoting activity.
Proton's party pals may alter its internal structure
A recent experiment at the Department of Energy's Thomas Jefferson National Accelerator Facility has found that a proton's nearest neighbors in the nucleus of the atom may modify the proton's internal structure.
Chromosomes dance and pair up on the nuclear membrane
Meiosis - the pairing and recombination of chromosomes, followed by segregation of half to each egg or sperm cell - is a major crossroads in all organisms reproducing sexually.
Nanotech in Space: Rensselaer Experiment To Weather the Trials of Orbit
Novel nanomaterials developed at Rensselaer Polytechnic Institute are scheduled to blast off into orbit on November 16 aboard Space Shuttle Atlantis.
The bizarre lives of bone-eating worms
The females of the recently discovered Osedax marine worms feast on submerged bones via a complex relationship with symbiotic bacteria, and they are turning out to be far more diverse and widespread than scientists expected.
SNM applauds House action to build medical isotopes reactor in the US
SNM applauds the U.S. House of Representatives for its passage of H.R. 3276-the American Medical Isotopes Production Act of 2009.
More Nuclear Current Events and Nuclear News Articles
 |
History of Nuclear Weapons - The Ultimate Weapons (2-DVD Set) Directed By: A2ZCDS.com The Ultimate Weapons DVD set from A2ZCDS is both disturbing and fascinating at the same time. Its historical significance can not be overrated – nor can the quality of these incredibly preserved vintage films from the dawn of the nuclear era. Over the course of the two DVDs you get a full picture of the development of the first nuclear weapons – that would spearhead the end of World War II – up through advanced nuclear testing in the late 1950s. If you are looking for films of nuclear bombs exploding, you will not be disappointed. You see the effects of the bomb on houses constructed at test sites, and also learn how the government planned to deal with the psychological effects of nuclear weapons. The Bikini Atoll test films are included and there is some exciting footage of... |
 |
The Nuclear Express: A Political History of the Bomb and Its Proliferation by Thomas C. Reed (Author), Danny B. Stillman (Author) This is a political history of nuclear weapons from the discovery of fission in 1938 to the nuclear train wreck that seems to loom in our future. It is an account of where those weapons came from, how the technology surprisingly and covertly spread, who is likely to acquire those weapons next and most importantly why.
The authors’ examination of post-Cold War national and geopolitical issues regarding nuclear proliferation and the effects of Chinese sponsorship of the Pakistani program is eye opening. The reckless “nuclear weapons programs for sale” exporting of technology by Pakistan is truly chilling as is the on again off... |
 |
3M Performance Plus 8979N Nuclear Grade 48-Millimeter-by-54.8-Meter Duct Tape, Slate Blue by 3M 8979N Nuclear Grade is designed for both permanent and temporary applications both indoors and outdoors. 8979 provides clean removal with little or no adhesive residue from most opaque surfaces up to 6 months after application. It offers sunlight/UV r |
 |
Day One Starring: Brian Dennehy, Alan Scarfe, John Pielmeier, Ken Pogue, David Strathairn Directed By: Joseph Sargent This Emmy® winning, historically accurate drama tells the complex and moving story of the Manhattan Project. Racing against the Nazi war machine and enduring intense military and political pressure, Allied scientists wrestle with the challenge of creating the ultimate weapon. Leading the superb cast are Michael Tucker (L.A. Law) as Hungarian physicist Leo Szilard, David Strathairn (Good Night, and Good Luck.) as mission chief J. Robert Oppenheimer, Brian Dennehy (Death of a Salesman) as General Leslie Groves, and David Ogden Stiers (MASH) as FDR. Also featuring Hal Holbrook (Mark Twain Tonight!), Hume Cronyn (12 Angry Men), and Tony Shalhoub (Monk). Before the bomb can be perfected, Hitler's death and Germany's surrender remove one enemy from the equation. But Japan remains. Day... |
 |
Nuclear Energy in the 21st Century: World Nuclear University Press by Ian Hore-Lacy (Author) The onset of the 21st century has coincided with mounting scientific evidence of the severe environmental impact of global energy consumption. In response, governments and environmentalists on every continent have begun to re-evaluate the benefits of nuclear power as a clean, non-emitting energy resource. Today nuclear power plants operate in some 30 countries, and nuclear energy has become a safe and reliable source of one-sixth of the world's electricity. This base has the potential to be expanded widely as part of a worldwide clean-energy revolution. Nuclear Energy in the 21st Century is an authoritative resource for educators, students, policy-makers and interested lay-people. This balanced and accessible text provides: * An inroad into nuclear science for the... |
 |
Trinity & Beyond - The Atomic Bomb Movie Starring: William Shatner, Edward Teller, Frank H. Shelton, Randall William Cook, Hubert H. Humphrey Directed By: Peter Kuran Trinity & Beyond… The Atomic Bomb Movieis the top secret, strange and visually compelling history of the design, production and testing of Atomic Hydrogen bombs. In this special 60th Anniversary Diamond Edition, renowned special effects filmmaker Peter Kuran (Star Wars, Star Trek II & V, Robocop) offers up amazing film footage chronicling the top secret, strange and visually compelling history of the design, production and testing of Atomic Hydrogen bombs by the United States. With the development and use of award-winning new film restoration systems, Kuran has perfectly preserved these haunting images for generations to come. Narrated by William Shatner (Boston Legal, Star Trek), Trinity & Beyond features extremely rare film segments from top secret government archives and... |
 |
Power to Save the World: The Truth About Nuclear Energy (Vintage) by Gwyneth Cravens (Author), Richard Rhodes (Introduction) An informed look at the myths and fears surrounding nuclear energy, and a practical, politically realistic solution to global warming and our energy needs. Faced by the world's oil shortages and curious about alternative energy sources, Gwyneth Cravens skeptically sets out to find the truth about nuclear energy. Her conclusion: it is a totally viable and practical solution to global warming. In the end, we see that if we are to care for subsequent generations, embracing nuclear energy is an ethical imperative. |
 |
Defcon: Strategic Nuclear War by Encore It's the End Of the World as You Know It! Inspired by the 1983 cult hit, War Games, Defcon puts you right in the middle of the Cold War era. Your success and our ultimate survival are on the line. Can you dominate or will you crumble under the pressure and paranoia? Compete as 1 of 6 superpowers embroiled in the largest military conflict imaginable! The only game that allows players to rain nuclear death on the enemy and rack up kill counts in the 10s of MILLIONS! |
 |
Nuclear War Card Game by Flying Buffalo A humorous card game with a tongue-in-cheek view of international diplomacy, propaganda, and finally: holocaust! Two to six players engage in touchy negotiations until a warmonger pushes the button! This hilarious card game is easy to learn and fast to play. But watch out: if everyone is wiped out -- nobody wins! |
 |
Nuclear Weapons: What You Need to Know by Jeremy Bernstein (Author) Nuclear Weapons is a history of nuclear weapons. From their initial theoretical development at the start of the twentieth century to the recent tests in North Korea, the author seeks to, at each point in the narrative, describe the basic science of nuclear weaponry. At the same time, he offers accounts and anecdotes of the personalities involved, many of whom he has known firsthand. Dr. Bernstein writes in response to what he sees as a widespread misunderstanding throughout the media of the basic workings and potential impact of nuclear weaponry. |
| © 2009 BrightSurf.com |