Hello out there; I am trying to locate a small Torsion Spring , approx, 3/4 to 1 in. in dia. 3/4 in. deep, with 1/2 in dia for shaft. Torsion strength , 20 to 30 Lbs. for Med device.
Monthly Archives: April 2010
The Science of Kissing COVER! | The Intersection
So what do you think?! The Science of Kissing will be out next January and is already available for pre-order on Amazon. Here's the description: From a noted science journalist comes a wonderfully witty and fascinating exploration of how and why we kiss. When did humans begin to kiss? Why is kissing integral to some cultures and alien to others? Do good kissers make the best lovers? And is that expensive lip-plumping gloss worth it? Sheril Kirshenbaum, a biologist and science journalist, tackles these questions and more in THE SCIENCE OF KISSING. It's everything you always wanted to know about kissing but either haven't asked, couldn't find out, or didn't realize you should understand. The book is informed by the latest studies and theories, but Kirshenbaum's engaging voice gives the information a light touch. Topics range from the kind of kissing men like to do (as distinct from women) to what animals can teach us about the kiss to whether or not the true art of kissing was lost sometime in the Dark Ages. Drawing upon classical history, evolutionary biology, psychology, popular culture, and more, Kirshenbaum's winning book will appeal to romantics and armchair scientists alike.
Pelton Turbine and Specific Speed
Hi all, Is it possible that specific speed of pelton turbine decrease with increase in rated speed??? Here the net head remains same. But the Power O/P from each generator is Installed capacity divided by no. of units.
Someone, please answer it for me.
Conversion of Cycle
How can i mount the two wheeler engine to the geared cycle?
Microbial Answer To Plastic Pollution?
From Tech News Watch:
Fragments of plastic in the ocean are not just unsightly but potentially lethal to marine life. Coastal microbes may offer a smart solution to clean up plastic contamination, according to Jesse Harrison presenting his research at the Society for General Microb
Flavonoids In Orange Juice Suppress Oxidative Stress From High-Fat, High-Carb Meal
From Tech News Watch:
Eating foods containing flavonoids — orange juice, in this case — along with a high-fat, high-carbohydrate fast-food meal neutralizes the oxidative and inflammatory stress generated by the unhealthy food and helps prevent blood vessel damage, a new
Internet Spy Ring Uncovered
From CBC | Technology & Science News:
Canadian researchers have helped uncover an internet spy network that was used to steal data on India's missile systems, private correspondence of the Dalai Lama and Canadian visa applications. The discovery was made by security researchers
Offshore Wind Turbines Could Power Atlantic Seaboard
From Wired Top Stories:
A 1,550-mile-long network of offshore wind stations could provide power from Massachusetts to North Carolina with minimal threat of outages, according to a new study. By connecting stations together, the system could eliminate the biggest downside of wind
Circuit Design for Label Feeder
Hello all, I am looking for a simple circuit which would allow me to use a motor, probably a stepper motor, to feed paper (labels to be exact) from a roll a set distance which can be changed. Basically If I need a ten inch strip fed out I can set it for ten inches then it would advance and stop
New Coil vs. Old Coil – Replacement Ignition
Recently purchased new coil for 48 ford 6V system. The old coil posts indicate batt and Ign very self explanatory, but the new coil posts are marked (+) and (-).
You guessed it right which goes to ignition? positive or negative?
By the way the old system was converted to ne
Digital Mock Up Software
anybody have freeware
digital 'mockup software and jack software ' used for simulation from simens
used for assembly simulation of automotive parts etc,,where i can find it?
HP 2015 Printer
I have an HP 2015 printer which is hanging some time shows paper jam some time toner problem some time paper not available what is the solution?
Pipe Material Properties
What is the composotion of pipe material A672B70CL32 and its properties? Is this ASTM standard material?
Topography Reflects Baja Quake Site’s Complex Geology

› Full image and caption
The topography surrounding the Laguna Salada fault in the Mexican state of Baja, California, is clearly shown in this combined radar image and topographic view (above) generated with data from NASA's Shuttle Radar Topography Mission (SRTM). On April 4, 2010, a magnitude 7.2 earthquake struck along this fault about 64 kilometers (40 miles) south of the Mexico-United States border.
According to the U.S. Geological Survey, the earthquake was the largest to strike this area since 1892. This fault is a probable southern continuation of the Elsinore fault zone in Southern California, and is related to the San Andreas fault zone complex. Aftershocks since the major event have appeared to extend in both directions along this fault system from the epicenter, marked by the red star.
This view combines a radar image acquired in February 2000 during SRTM, and color-coding by topographic height using data from the mission's data. Dark green colors indicate low elevations, rising through lime green, yellow and tan, to white at the highest elevations. The image shows a simulated view toward the southwest, with the topography exaggerated by a factor of two for clarity.
For more information, also see: http://photojournal.jpl.nasa.gov/catalog/PIA13016
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3-2-1 Lift Off

Space shuttle Discovery's engines ignited at 6:21 a.m. EDT Monday, April 5, for liftoff of the STS-131 mission from Launch Pad 39A at NASA's Kennedy Space Center. The seven-member crew will deliver the multi-purpose logistics module Leonardo, filled with supplies, a new crew sleeping quarters and science racks that will be transferred to the International Space Station's laboratories. The crew also will switch out a gyroscope on the station’s truss, install a spare ammonia storage tank and retrieve a Japanese experiment from the station’s exterior. STS-131 is the 33rd shuttle mission to the station and the 131st shuttle mission.
View my blog's last three great articles...
- NASA Demonstrates Ocean-Powered Underwater Vehicle...
- Juno Taking Shape in Denver
- Cassini Doubleheader: Flying By Titan and Dione
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NASA Demonstrates Ocean-Powered Underwater Vehicle
NASA, U.S. Navy and university researchers have successfully demonstrated the first robotic underwater vehicle to be powered entirely by natural, renewable, ocean thermal energy. The Sounding Oceanographic Lagrangrian Observer Thermal RECharging (SOLO-TREC) autonomous underwater vehicle uses a novel thermal recharging engine powered by the natural temperature differences found at different ocean depths. Scalable for use on most robotic oceanographic vehicles, this technology breakthrough could usher in a new generation of autonomous underwater vehicles capable of virtually indefinite ocean monitoring for climate and marine animal studies, exploration and surveillance.
Researchers at NASA's Jet Propulsion Laboratory, Pasadena, Calif.; and the Scripps Institution of Oceanography, University of California, San Diego, completed the first three months of an ocean endurance test of the prototype vehicle off the coast of Hawaii in March.
"People have long dreamed of a machine that produces more energy than it consumes and runs indefinitely," said Jack Jones, a JPL principal engineer and SOLO-TREC co-principal investigator. "While not a true perpetual motion machine, since we actually consume some environmental energy, the prototype system demonstrated by JPL and its partners can continuously monitor the ocean without a limit on its lifetime imposed by energy supply."
"Most of Earth is covered by ocean, yet we know less about the ocean than we do about the surface of some planets," said Yi Chao, a JPL principal scientist and SOLO-TREC principal investigator. "This technology to harvest energy from the ocean will have huge implications for how we can measure and monitor the ocean and its influence on climate."
SOLO-TREC draws upon the ocean's thermal energy as it alternately encounters warm surface water and colder conditions at depth. Key to its operation are the carefully selected waxy substances known as phase-change materials that are contained in 10 external tubes, which house enough material to allow net power generation. As the float surfaces and encounters warm temperatures, the material melts and expands; when it dives and enters cooler waters, the material solidifies and contracts. The expansion of the wax pressurizes oil stored inside the float. This oil periodically drives a hydraulic motor that generates electricity and recharges the vehicle's batteries. Energy from the rechargeable batteries powers the float's hydraulic system, which changes the float's volume (and hence buoyancy), allowing it to move vertically.
So far, SOLO-TREC has completed more than 300 dives from the ocean surface to a depth of 500 meters (1,640 feet). Its thermal recharging engine produced about 1.7 watt-hours, or 6,100 joules, of energy per dive, enough electricity to operate the vehicle's science instruments, GPS receiver, communications device and buoyancy-control pump.
The SOLO-TREC demonstration culminates five years of research and technology development by JPL and Scripps and is funded by the Office of Naval Research. JPL developed the thermal recharging engine, building on the buoyancy engine developed for the Slocum glider by Teledyne Webb Resear
ch, Falmouth, Mass. Scripps redesigned the SOLO profiling float and performed the integration. The 84-kilogram (183-pound) SOLO-TREC prototype was tested and deployed by the JPL/Scripps team on Nov. 30, 2009, about 161 kilometers (100 miles) southwest of Honolulu.
The performance of underwater robotic vehicles has traditionally been limited by power considerations. "Energy harvesting from the natural environment opens the door for a tremendous expansion in the use of autonomous systems for naval and civilian applications," said Thomas Swean, the Office of Naval Research program manager for SOLO-TREC. "This is particularly true for systems that spend most of their time submerged below the sea surface, where mechanisms for converting energy are not as readily available. The JPL/Scripps concept is unique in that its stored energy gets renewed naturally as the platform traverses ocean thermal gradients, so, in theory, the system has unlimited range and endurance. This is a very significant advance."
SOLO-TREC is now in an extended mission. The JPL/Scripps team plans to operate SOLO-TREC for many more months, if not years. "The present thermal engine shows the great promise in harvesting ocean thermal energy," said Russ Davis, a Scripps oceanographer. "With further engineering refinement, SOLO-TREC has the potential to augment ocean monitoring currently done by the 3,200 battery-powered Argo floats." The international Argo array, supported in part by the National Oceanic and Atmospheric Administration, measures temperature, salinity and velocity across the world's ocean. NASA and the U.S. Navy also plan to apply this thermal recharging technology to the next generation of submersible vehicles.
To learn more about SOLO-TREC, visit http://solo-trec.jpl.nasa.gov .
For more information about NASA and agency programs, visit: http://www.nasa.gov .
- Juno Taking Shape in Denver
- Cassini Doubleheader: Flying By Titan and Dione
- Stofan's Management Skills Raise Glenn's Profile
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Juno Taking Shape in Denver

Workers move into place the vault that will protect Juno's sensitive electronics from Jupiter's intense radiation belts.
The assembly, testing and launch operations phase began April 1 in a high-bay clean room at Lockheed Martin Space Systems in Denver. Engineers and technicians will spend the next few months fitting instruments and navigation equipment onto the spacecraft.
"We're excited the puzzle pieces are coming together," Bolton said. "We're one important step closer to getting to Jupiter."
Jupiter is the largest planet in our solar system. Underneath its dense cloud cover, the planet safeguards secrets to the fundamental processes and conditions that governed our solar system during its formation. As our primary example of a giant planet, Jupiter can also provide critical knowledge for understanding the planetary systems being discovered around other stars.
Juno will have nine science instruments on board to investigate the existence of a solid planetary core, map Jupiter's intense magnetic field, measure the amount of water and ammonia in the deep atmosphere, and observe the planet's auroras.
"We plan to be doing a lot of testing in the next few months," said Jan Chodas, the project manager based at NASA's Jet Propulsion Laboratory in Pasadena, Calif. "We want to make sure the spacecraft is ready for the long journey to Jupiter and the harsh environment it will encounter there."
JPL manages the Juno mission for the principal investigator, Scott Bolton. Lockheed Martin Space Systems is building the spacecraft. The Italian Space Agency, Rome, is contributing an infrared spectrometer instrument and a portion of the radio science experiment.
For more information about Juno, visit http://www.nasa.gov/juno.
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- Cassini Doubleheader: Flying By Titan and Dione
- Stofan's Management Skills Raise Glenn's Profile
- Colony of Young Stars Shines in New Spitzer Image
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Ofquack to regulate herbal medicine?
The attempted regulation of herbalism looks doomed to failure with a clear difference of opinion between government and practitioners, the latter prefer statutory regulation which has been rejected as an option by government.
Last week the Department of Health (DoH) recommended that the Complementary and Natural Healthcare Council (CNHC/Ofquack) regulate herbal medicine, traditional Chinese medicine (TCM) and acupuncture. Minister for Health, Andy Burnham, said:
“Emerging evidence clearly demonstrates that the public needs better protection, but in a way that is measured and does not place unreasonable extra burdens on practitioners.
“I am therefore minded to legislate to ensure that all practitioners supplying unlicensed herbal medicines to members of the public in England must be registered with the Complementary and Natural Healthcare Council (CNHC).
The CNHC have expressed their pleasure at this announcement:
CNHC is pleased to be asked by The Secretary of State for Health to register practitioners supplying herbal medicines to members of the public in England.
The Council already registers a significant range of practitioners in complementary healthcare who meet its standards and is well positioned to expand its public protection role in this way. Since 2008 CNHC has established its reputation as a regulatory body with robust and effective standards for registration and fitness to practise. It has positive and collaborative links with the statutory healthcare regulators.
This is probably regarded as good news by the CNHC, they have had a well documented struggle for funding and have trouble attracting some of the more popular forms of quackery. Regardless of this, the CNHC are not fit for purpose, they have recently told sceptical blogger Simon Perry that they will not consider his complaints for the next 6 months:
The CNHC has now informed me that for the next six months, they will no longer be processing any complaints that are similar to the ones I’ve submitted. By similar, I take this to mean complaints regarding practitioners who mislead their clients by making unjustifiable or false statements, including practitioners who have already been cautioned by the CNHC for doing it before.
The CNHC was set up under the aegis of Prince Charles’ Foundation for Integrated Health (FIH) to be a self-regulatory body for alternative health, now it is one that is not prepared to regulate. However this is not unexpected. Organisations purporting to regulate quackery rarely do so beyond upholding the doctrines and articles of faith of the respective field of quackery, managing risks to consumer health are generally not a priority.
It would be a concern for those with an interest in exposing the practices of alternative medicine if the CNHC were to regulate herbal medicine, traditional Chinese medicine and acupuncture. This, despite the recommendations of Andy Burnham, is unlikely to happen for two reasons.
1) The government is unlikely to exist in its current form within a month or two. A general election is expected early in May and the Labour party are unlikely to win, if they are to remain in power it will be in a coalition but it is more likely that the next government will be formed from the Conservative party. None of the major parties have a clearly stated policy on the regulation of alternative medicine, nor is it likely to be a major election issue, so the Department of Health’s current proposals are likely to be mothballed for some considerable time.
2) Herbalists and TCM practitioners do not want CNHC regulation.
This latter point is the most important. The European Herbal & Traditional Medicine Practitioners Association (EHTMPA), the Register of Chinese Herbal Medicine (RCHM), the Association of Traditional Chinese Medicine (ATCM), and the National Institute of Medical Herbalists (NIMH) amongst others in the alphabetical smorgasbord that represents the various denominations of herbalism, have all campaigned for statutory regulation. Their intent was to be regulated by the Health Professionals Council (HPC), a more serious organisation than the CNHC, that regulates practitioners in proven fields of health. This statutory regulation would confer protected status on their profession, restricting the title of Herbalist to those regulated by its rules.
By and large these organisations are disappointed with the DoH’s announcement:
the government seems to have failed to deliver its promise, and has changed its mind from HPC as our regulatory body to CNHC. We would like to demand an explanation from the government on what ground it has changed its mind, as CNHC is only a voluntary body with no statutory power. From the rather short DH press release which lacks details, we doubt whether the government still wants to introduce statutory regulation, or decides to go for an alternative.
Herbalists should be regulated like other statutory regulated healthcare practitioner or, the public will lose access to properly regulated herbalists and a wide range of herbal medicines. The Government must give detailed assurances that the legal and structural basis of statutory regulation is fit for purpose or it will betray the millions of people who regularly consult herbal practitioners. So far the Government has singularly failed to provide these guarantees.
As the CNHC is voluntary these organisations have no need to insist that their members sign up, in fact as they are holding out for statutory regulation it is unlikely that they will be willing to express any support for the CNHC, to do so would undermine their campaign. This will damage the CNHC’s longterm viability, no new members means no new funding sources, and with the homeopaths mired in infighting the herbalists represent their last decent chance of acquiring new members in the medium term.
This is good news for those that are concerned about poor practice in alternative medicine. The collapse of the CNHC will further damage the reputation of alternative medicine. Hopefully a new government will take stock of the intransigence of the herbalists, the infighting of the homeopaths and the inability of the CNHC to regulate and instead apply a more robust external form of regulation for quackery.
Video: Why submit your research to the BMJ?
The BMJ has produced a short video to help you find out about getting research published there. It includes interviews with published authors and clips from some of the short films that accompany important research articles.
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The two current heavyweight world boxing champions both have PhDs, believe or not
Believe or not, but the two current heavyweight world boxing champions both have PhDs... The two researchers are the Ukrainian heavyweight boxers and brothers Wladimir and Vitali Klitschko.
Klitschko KOs Chambers to keep titles. CNN.
Klitschko-Chambers round-by-round blog. CNN.
Wladimir Klitschko. Wikipedia.
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