can u send the latest ASTM and DIN stantards for pipes and its accesories to my email- sunil017@gmail.com -i'm an engineer in one of the worlds worst companys- thanks and blessings for mutual help of this sort - let such organisation of fulness flourish between engineers that can make people proud
Local High School Wins Invention Challenge
Students study an entry in the 2009 Invention Challenge
Crescenta Valley High School, located several miles from JPL, picked up top honors at the annual Invention Challenge, held today at JPL.
The event drew more than 200 students and teachers representing 11 schools from throughout Southern California. This year's challenge was to build the most efficient cardboard or paper bridge capable of carrying several pounds of bricks.
A total of 20 student teams competed side-by-side with nine JPL teams of engineers. Crescenta Valley High teams captured first, second and third place honors. The winning JPL team was Richard Goldstein, while second place went to David Van Buren and third place to Brant Cook.
Each year the rules change but the result is the same: Students get a better appreciation that math, science and engineering can be fun.
The requirements were that the bridges be made of cardboard or paper products, use reasonable amounts of glue, span a 1.2-meter (48-inch) gap, and have a width of no more than 45.7 centimeters (18 inches). The bridges carried standard-sized bricks (between one and 44) that weighed about 2.42 kilograms (5.35 pounds) each.
View this site auto transport
Freezing WISE’s Hydrogen
A scaffolding structure built around NASA's Wide-field Infrared Survey Explorer, or WISE, allows engineers to freeze its hydrogen coolant. The WISE infrared instrument is kept extremely cold by a bottle-like tank filled with frozen hydrogen, called the cryostat. The cryostat can be seen at the top of the spacecraft.
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Guide to the International Space Station Laboratory Racks Interactive
Image above: The International Space Station’s coordinate system. Credit: NASA
The International Space Station hosts astronauts, gear and science from around the world. Three laboratories from Europe, Japan and the United States bring them all together for the most advanced research and development. More than 150 experiments involving researchers from around the world are active at any given time.
While the space station is the most advanced spacecraft ever built, its coordinate system is labeled like any sea-faring vessel on Earth using traditional nautical terms. Understanding this coordinate system will help you use this interactive and understand the relative positions of the onboard experiment facilities.
The orbiting laboratory’s left and right sides are designated as port and starboard respectively. The rear of the station is the aft section where the Russian Zvezda service module is located. The front of the station, where the U.S. Harmony module is located, is labeled the forward section. The side of the station facing the Earth is the deck and the opposite side is the overhead.
Inside the station’s three international laboratory modules are numerous racks that support science, environmental and electrical systems. Depending on which side the laboratory is facing in the station’s coordinate system the racks’ locations are labeled using nautical terms. The International Space Station Laboratory Racks interactive depicts these racks and their locations inside the orbiting lab.
The Columbus laboratory is on the station’s port side and the Kibo laboratory is on the starboard side. Their labs are set up with the racks in the aft, forward and overhead, deck configuration. Both labs are attached to the U.S. Harmony node which is in the forward section of the space station.
The U.S. Destiny laboratory is just behind the Harmony Node. Its racks are set up in the port, starboard and overhead, deck configuration.
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Load Flow and Relay Coordination Studies
PL let me know about load flow and relay coordiation study in an integated power system.
LeTourneau Cranes – Main Hook Control
he main hook speed high and increase always Dc motor compound c6 driven by MG set
replaced speed limit and tacho generator but still same problem not ok
PLC Remote Monitoring and Control
HOW PLC (SIEMENS s7 300) can remotley monitor and control via internet without any ethernet module . use of some softwares or V.B plz helpe me
Nickel Percentage and Welding AISI 202
As per Material specifications AISI 202 contents 4 TO 6 % NICKEL.
But if Nickle % is 0 then what will be the effect of ansence of nickel on welding of Aisi202
In simple words what is significance of Nickel in stainless steel?
Seagate’s Momentus Thin Drive is the World’s Thinnest 2.5" Netbook Drive [Hdd]
At a mere 7 millimeters in height, Seagate's Momentus Thin drive will be the slimmest 2.5" hard drive on the market. Not only that, but supposedly it will also be one of the lowest-priced storage options for ultra-portables and netbooks.
We don't have details as to exactly how much these drives will cost or when we'll be seeing them in our computers, but we do know that they're shipping to Seagate's OEM and integrator partners at the very beginning of 2010. If the Momentus Thin lives up to all its claims, then its 160GB and 250GB capacities should be a rather attractive option for netbooks. Definitely something to keep an eye on next year.
SEAGATE UNVEILS WORLD'S THINNEST 2.5-INCH HARD DRIVE FOR SLIM LAPTOP COMPUTERS
SCOTTS VALLEY, Calif. - December 14, 2009 - Seagate Technology (NASDAQ:STX) today announced the Momentus® Thin drive, the world's thinnest 2.5-inch hard disk drive for ultra-portable and entry-level laptops, high-end netbooks, backup devices and consumer electronics. At a wafer-thin 7mm in height – 25 percent slimmer than traditional 9.5mm 2.5-inch laptop hard drives – the Momentus Thin drive gives original equipment manufacturers (OEM) and system integrators significantly lower cost-per-gigabyte storage than solid state and 1.8-inch drives, enabling a new breed of entry-level thin laptops.
Of all netbook computers available today, 90 percent feature 9.5mm 2.5-inch laptop drives because solid state and 1.8-inch hard drives are largely cost-prohibitive for this market. The Momentus Thin drive provides the lowest-cost storage for netbooks and thin laptops, enabling computer makers to offer systems that reach a broader market.
"The Momentus® Thin drive promises to help computer makers differentiate on mobile-computing form factor and better compete in the fast-growing markets for thin laptop PCs and netbooks," said Dave Mosley, executive vice president of Sales, Marketing and Product Line Management at Seagate. "Seagate is committed to helping its OEM and system integrator partners meet market demand for thinner laptop PCs and plans to expand storage capabilities for thin laptops as demand for these slimmer models continues to grow."
The Momentus Thin drive rivals traditional 2.5-inch laptop drives in performance and power-efficiency, enabling thin-chassis designs in all segments of notebook computing and allowing OEMs both to design in greater value on high-end netbooks for easier upselling and to create a wider value differentiation between consumer and commercial laptop PCs. The Momentus Thin drive features two capacity points – 250GB and 160GB – an 8MB cache, a Serial ATA 3Gb/second interface and a 5400RPM spin speed. The drive is scheduled to ship to Seagate's OEM and integrator partners in January 2010.
The Seagate® Momentus® family now helps laptop makers give home and business users a sweeping upgrade path – from netbooks, often purchased as introductory, low-cost laptop PCs strictly for emailing and Internet surfing, to notebooks offering mainstream business and consumer applications, to feature-rich, high-performance laptops, all in standard-size and the increasingly popular thin models. Seagate Momentus 5400RPM and 7200RPM hard drives in the traditional 9.5mm height combine the industry's broadest feature set – including self-encryption, FIPS 140-2 certification and free-fall sensors – with up to 640GB of capacity, fast 3Gb/second Serial ATA interface speeds, cache sizes as large as 16MB, and among the highest hard drive shock-tolerance, acoustics and reliability specifications for entry-level, mainstream and high-performance laptops.
[Seagate]
EN24
physical properties of EN24
Anti-Splash Mechanism for Pressure Vessels
Hi There!
Kindly refer me to a practical design of Anti-Splash mechanism for Pressure vessels.
Thanx in Advance.
Superman Comes Out of the Superhero-Closet [Image Cache]
Superman's a pretty decent guy and after he falls for Lois Lane, he immediately tries to be completely honest with her. The only trouble is that Lois is a bit confused as to what Superman's coming out about.
Or maybe Lois is way smarter than all of us and has figured out Superman's real secret. Who knows. I think I'll just enjoy the Batman cameo at the end of the clip and not question this too much. [Thanks, Erik!]
WISE to launch Monday morning | Bad Astronomy
[UPDATE: As of 8:10 a.m. Mountain time (15:10 GMT) the launch went well, and WISE is now orbiting the Earth. There will be some engineering checkouts over the next few hours, but everything looks good! Congrats to the WISE team!]
If all goes according to plan, a Delta II rocket will thunder into the California sky at 9:09 a.m. EST (14:09 GMT) Monday, carrying the Wide-Field Infrared Survey Explorer (WISE) into orbit.
WISE is an amazing instrument. It will survey the entire sky in the far mid infrared, with much better resolution than ever before. It is expected to detect hundreds of millions of objects, including galaxies, faint, cool stars, asteroids in our solar system, and much more. Amy Mainzer, Deputy Project Scientist for WISE, is in a video that explains what it’ll do (sorry, the embedding didn’t work, but click through and watch it).
WISE is a precursor mission to the James Webb Space Telescope, a huge infrared observatory that will be to the mid infrared sky what Hubble is to the visible, near IR, and near UV. Surveying the entire sky will enable astronomers to make quite the wish list for JWST once it’s up and running in 2014.
I’m looking forward to seeing what WISE can do; the images alone should be jaw-droppingly beautiful, and of course the science will be great. You can watch the launch live on NASA TV, too.
Image credit: NASA/VAFB
VMC Machines
Actually iam planning to buy a used VMC Machine.Can anyone help me on what are all the important points to check or buy-off the equipment.
If you have any check list will be helpful to me.
Thanks.
Pressure and Flow
Long time i have this doubt.
Generally any automation equipment will work using air(pneumatics).While specifying the required Air requirement.
Always manufacturer will define pressure ,also the flow.
Let's say for an example.
pressure:-80 to 100psi.
Flow:
U.S. Supreme Court Hears Case Regarding Florida Beach Ownership
In 2003, Florida officials decided to renourish 6.9 miles of beach in Destin, Florida to repair damage from hurricanes. In the process, the State created a new boundary line between the oceanfront property owners and the public portion of the beach. Although the beaches in Florida have always been public up to the “mean high water line,” this new line, which the state called the “erosion control line,” effectively allowed the State to claim a portion of the beachfront that previously lay above the MHWL.
Property owners fought back, filing a lawsuit that charged the State with illegally seizing property without compensation (municipalities and governmental entities can legally take property through a process known as eminent domain, as long as they can prove it is for the public good, but the owners of the property must be fairly compensated for their property). The case has been in the courts ever since, with the initial Florida appeals court ruling in favor of the property owners eventually being overturned by the Florida Supreme Court.
Now being heard by the U.S. Supreme Court, the case has far-reaching implications for all owners of waterfront property. Throughout the long legal proceedings, Destin property owners have insisted that the beach had not eroded and that the State widened the beach and changed boundary lines to draw more vacationers and increase revenues from tourism.
If the owners prevail, it could have the effect of making it very difficult, if not impossible, for coastal States to conduct beach restoration projects. If the State prevails, renourished beaches previously considered “private” may become much more accessible to the public.
Video credit: kgiannis1389
Article by Barbara Weibel @ Hole In The Donut Travels
Electrically-Operated Solenoid Valves for a Micro Brewery
Anyone know who sells electrically operated solenoid valves for carbonated beverages? It would need to be rated for the food industry.
I've been asked to build a small scale beer bottling line for a micro brewery. Most of it looks pretty straight forward (and I'm prepared to do all the rese
What Wire Should I Use?
If i have approximation of 3800 watts. What wire will i use? and if i have 21 rooms rooms?what wire will i use? assume that they have the same loads(3800 watts)..
Please help me.. thanks a lot
What's the Best Simulation Software for Mechanical Designs?
can any one suggest me a good simulation software for Mechanical design.Is there any free software please suggest me.
Will ProE help to simulate the design.?
An Instable CO2-Filled Ocean
A Greenpeace ship flies a banner demanding "Stop climate change here" as it welcomes flights into nearby Copenhagen airport. Monday Dec. 7. 2009. (AP Photo/Nanna Kreutzmann/POLFOTO)
“Jeremy Brown, a fisherman from the Pacific Northwest, is pulling things from the ocean he says are so disturbing that he came to Washington to warn U.S. lawmakers about it. “This is not overfishing, this is something far larger,” said Brown, one of 10 people who met with lawmakers and legislative aides this week on behalf of the Sustainable Fisheries Partnership, a San Francisco-based group that advises seafood producers on fishing practices.
The group said the ocean is becoming more acidic because of carbon-dioxide emissions that are damaging coral reefs, decimating populations of tiny animals at the base of the food chain and eating away at the shells of clams, mussels and oysters.
“Every so often we snag a piece of coral on the gear,” Brown, of Bellingham, Washington, said in an interview. “It doesn’t look healthy, the color has gone out of it. The evidence is that we have instabilities in the system, and this last year was really scary.”
Rajendra Pachauri, chairman of a United Nations scientific advisory panel on climate change, highlighted ocean acidification this week in remarks at the global conference on greenhouse gases in Copenhagen.
World trade in seafood products is valued at $100 billion and feeds 3 billion people, according to the fisheries partnership. That production is threatened by rising acidity, caused by the ocean absorbing more carbon from the atmosphere, and by the effects of agricultural runoff, said Mark Green, a professor of oceanography at St. Joseph’s College of Maine in Portland, who accompanied the fishermen on the trip.
The group met with Republican Senators Susan Collins of Maine and Lisa Murkowski of Alaska and aides to other coastal senators during a three-day visit.
Small snails and other tiny animals at the base of the food chain are disappearing at alarming rates, jeopardizing the health of pink salmon and other fish that feed on them, said Green, who lives on Maine’s Peaks Island.
“What we see with ocean acidification, we are seeing on time scales that are far more rapid than any sort of changes we are seeing on terrestrial systems,” said Green. “People who weren’t able to agree with climate-change science will have an easier time accepting the science on acidification.”
The U.K.-based Marine Climate Change Impacts Partnership reported in April that acidification has increased 30 percent since the start of the industrial revolution, a rate faster than at any time in the last 65 million years
More acidic water eats away at clam, oyster and mussel shells, said Mark Wiegardt, who raises shellfish larvae in Tillamook, Oregon, and sells them to commercial harvesters.
“The shells stop growing and the acidic water literally dissolves the calcium of the shells,” Wiegardt said.
Wiegardt said he has seen an 80 percent cut in production in [...]