Hey Guys ! I understand that 12 or 24 VDC alternators actually put out AC prior to the rectifiers.
1. Is it single phase or 3 phase or what?
2. Will they develop 120 VAC at some given RPM?
3. If so will either one of them power a 1 1/2 HP table saw?
Thanks
We are using RADIX transmitter for temprature sensing,
how it works? it have 1,2,3 for 4 to 20 mA And 4,5,6 for Sensor,
How the reading show in scada systen
regards,
raies Shaikh
At the end of my Learning from a Blender post, I alluded to a project George Wright’s presentation inspired. Armed with a video camera and a bit of inspiration, I headed to our H2 data center to capture our own “obvious” video for our customers. Blendtec’s “Will It Blend?” series features their Total Blender in a way few had ever seen a blender before. Blenders are designed to dice and slice, so they recorded themselves dicing and slicing … albiet a few unconventional objects.
We help our customers build their businesses on servers in our data centers, so why not disassemble a server and rebuild it on camera for you? While the server-building process isn’t nearly as noisy or destructive as blending marbles, it gives our customers an opportunity to see their server – or in this case, one like it – from a different perspective: inside-out.
When I asked the data center managers about recording a server build on video, they jumped at the opportunity. Transparency is one of The Planet’s goals, and by showing you how your server’s components fit together, we’re giving you that “insider” perspective.
Follow Scott Stanley, an H2 data center supervisor, as he builds a Xeon 3060 – SAS server:
Key Components:
If you’ve never seen how all of the components are laid out inside a server, consider this your crash course. Do you have any questions about the server construction process? Is there anything “behind the scenes” like this that you want to see for yourself? Leave a comment below and let us know!
-Kevin
P.S. The background music is courtesy of Brandon Holbrook at Royalty Free Music X. Thanks Brandon!
This is really one for the CR4 staff. When there are many responses to a discussion, they won't load; I'm guessing because dial-up can't handle so many pictures. Is there any way not to display them but only text?
What is the most efficient process to seperate copper from stainless steel in the radiator scraps?
I've received an e-mail urging me to call my senators to block an ammendment presented by Lisa Murkowski (R. Alaska) intended to prohibit the EPA from regulating greenhouse gases for one year. This is something that African nations won't like, since it would be a further indicator that the U.S. is n
As I write this, it’s about -15 C outside where I live in Boulder, and even the snow looks like it’s shivering. So I’m not sure if I’m happy to share the grief or feel badly about the weather for folks in the UK, who generally don’t get (metric, I suppose) tons of snow. But then I saw this image from NASA’s Earth observing Terra satellite:
Holy Haleakala, that’s gorgeous! I won’t say I’m exactly glad they got lots of snow, but still, wow. Sorry, my anglic friends, but your suffering has produced this stunning beauty.
The image was taken on January 7, 2010 at around noon local time. The image above has 1 km pixels, but you can also grab the image in higher-res 500 meter and 250 meter versions, too.
Hi a Plumbing
Hi a Plumbing Question.
What is the purpose of a Vent or Fresh Air Intake right before a House Trap?
Is it to allow air to exit before waste water hits the House Trap or other?
Thanks and a Happy New Year to all.
Dejan
Question.
What is the purpos of
Is there any one who can help me out for troubleshooting Blister machine ?
Model is HoongA .
Ladies and gentlemen, for your viewing and listening pleasure, it’s the fourth installment of “Symphony of Science.” If you missed the first three iterations of John Boswell’s creation, he auto-tunes the syncopated scientific stylings of Carl Sagan’s monologues from “Cosmos,” combined with guest stars like Stephen Hawking, Neil deGrasse Tyson (of DISCOVER’s StarTalk podcast, among many other media ventures), and Richard Feynman. If you need to catch up, all four are available on Boswell’s site. The first can even be had on vinyl through the label of the White Stripes’ Jack White—Third Man Records.
Here’s the newest, “The Unbroken Thread.” Watch and enjoy.
Related Content:
Cosmic Variance: AutoTuned Sagan
The Loom: The Continuing Return of Carl Sagan
Bad Astronomy: What I Learned from Carl Sagan
Air Force Gen. Lew Allen Jr., 84; headed NSA, NASA lab, Washington Post
"Retired Gen. Lew Allen Jr., a nuclear physicist who led the National Security Agency and served as the senior uniformed officer in the Air Force before heading NASA's Jet Propulsion Laboratory in the 1980s, died Jan. 4 at home in Potomac Falls of complications from rheumatoid arthritis. He was 84."
You could’ve seen this one coming a mile away—the high seas tensions between Japanese whalers and the environmental groups that harass them degenerated into downright naval warfare this week. A Japanese whaling ship collided with a environmental group’s boat in waters near Antarctica yesterday, sparking finger-pointing, international bickering, and even more bad blood.
The collision late yesterday damaged the Ady Gil, a powerboat that is part of the Sea Shepherd Conservation Society protest against the Japan’s annual whaling expedition to the Southern Ocean. Six crew members were rescued by another protest vessel and the boat may sink, Sea Shepherd said in a statement [Business Week]. The governments of Australia and New Zealand say they plan to investigate the crash; the Ady Gil is registered in New Zealand, which opposes the Japanese whaling.
Unsurprisingly, each sides blamed the other. The Japanese boat released a video shot from its deck. The video shows a frothy wake coming from the stern of the Ady Gil, although it is unclear whether the trimaran (the Ady Gil) was moving. The Shonan Maru 2 was directing a water cannon at the Ady Gil before and during the collision, which is clearly seen on the video, and the bow of the Ady Gil was sheared off [The New York Times]. However, the Sea Shepherd people released their own video which shows the whalers veering to intercept. Take a look:
Sea Shepherd boats routinely dog the Japanese whaling vessels, which operate under a loophole in the international moratorium on whaling that allows a certain amount of whale killings for research purposes. DISCOVER has documented complaints by American scientists that killing whales isn’t necessary for the research Japanese scientists are conducting, and also the stealthy killings of other cetaceans, like bottlenose dolphins. The International Whaling Commission continues to try to figure out how to amend its rules to contain Japan’s whaling efforts, thus far without success.
No one on board the Ady Gil died this time around, but one activist reported cracked ribs. The vessel’s six crew members were rescued from the stricken craft by the crew of the Bob Barker, a former Norwegian whaler recently purchased and refitted with a $5-million donation from Bob Barker, who hosted the TV game show “The Price Is Right” for 35 years [Los Angeles Times]. In the aftermath of the close call, a détente seems far out of reach. Sea Shepherd spokesman Paul Watson said the incident had turned the confrontations into a “real whale war” [BBC News].
Related Content:
80beats: Is the Whaling Ban Really the Best Way to Save the Whales?
80beats: Controversial Deal Could Allow Japan To Hunt More Whales
80beats: Commando Filmmakers Expose Secret Dolphin Slaughter in Japan
Discoblog: Japan Whaling Redux: American Scientists Say Slaughter Was Unnecessary
Discoblog: Say What? Japanese Whaling Ships Accuse Animal Planet of Eco-Terrorism
Surprise, surprise…. Fast food restaurants might be lying to your face.
According to the Los Angeles Times health blog, Booster Shots:
Researchers from Tufts University took commercially prepared foods — both prepackaged and from restaurants — and analyzed them in a bomb calorimeter. The measured energy values of 10 frozen meals purchased from supermarkets averaged 8% more than originally stated, and foods from 29 restaurants (both fast-food and sit-down venues) were on average 18% more than reported.
The most egregious offender? Denny’s, whose dry toast is advertised to contain 92 calories but actually packs a diet-busting 283 calories! If they can’t even get the numbers on toast right, just imagine the true caloric content of one of their Grand Slamwiches.
So if your New Year’s resolution includes getting back in shape, help yourself out by resolving to stop eating fast food and frozen meals all together.
Related Content:
Discoblog: Food Fraud: High Schoolers Use DNA Tests to Expose Fake Caviar
Discoblog: Fiber-Filled, Antioxidant-Packed Ice Cream—Brilliant? Sacrilegious? Nasty?
Discoblog: Heart-Stopping Cinematic Excitement: Guess How Much Fat Is in Movie Popcorn?
Image: flickr / fotographix.ca
Four hundred years ago tonight, a man from Pisa, Italy took a newly-made telescope with a magnifying power of 33X, pointed it at one of the brighter lights in the sky, and changed mankind forever.
The man, of course, was Galileo, and the light he observed on January 7, 1610 was Jupiter. He spotted "three fixed stars" that were invisible to the eye near the planet, and a fourth a few days later.
Here is how he drew this, 400 years ago:
He noted the stars moved around Jupiter as they followed it across the sky, and so was the first to figure out that other planets had moons like our own. It wasn’t an easy observation; his telescope was still small, the field of view narrow (so not all the moons were visible at the same time), and the moons faint next to Jupiter’s brilliant glare. But Galileo persisted, and figured it out. We call these four the Galilean moons in his honor: Io, Europa, Ganymede, and Callisto.
Here’s how we see them today:
The image above [click to embiggen] is from the New Horizons spacecraft as it shot past Jupiter in early 2007, showing all four moons. Each is scaled to show its true relative size to the others. It’s impossible not to wonder what Galileo would have thought, knowing that just shy of 400 years after he made his first observations, we would fling our robotic proxies out into the solar system and get close up views of the objects he discovered.
Think of it! For all of time before, Jupiter was just a light in the sky. And then, forever after that night forty decades ago, it was a world, surrounded by more worlds.
[See more pictures of Jupiter and its moons in a gallery over at 80 Beats.]
Galileo went on to observe craters on the Moon, spots on the Sun, and the phases of Venus. It was that last that may have been his crowning achievement, because the way Venus showed phases meant it could not possibly orbit the Earth, and that it must orbit the Sun. The geocentric theory had held sway for over a thousand years, but Galileo proved it was wrong almost overnight. Of course, the Church wasn’t thrilled with this, though I suspect they might have rolled with it if Galileo hadn’t been such an arrogant jerk and published a manuscript insulting the Pope, a man who used to be his friend and supporter.
If there is a lesson in there, I leave it to my readers to suss it out.
Now, all these years later, a lot of legends exist over the man. He didn’t invent the telescope, he wasn’t the first to point it at the sky, and he wasn’t even the first to publish his drawings. But he was a merciless self-promoter, and because of that we do remember him now (again, any lessons learned here are up to you). And it’s not entirely unfair to do so; he was a tireless observer, a wonderful artist, a great inventor (he may not have been the first to build a telescope, but he made his far better than its predecessors) and a brilliant scientist who, even if he hadn’t done so much for astronomy, would still be remembered today for his other work.
Tonight, just after sunset, Jupiter will be a glowing white beacon in the southwest. I have a Galileoscope, an inexpensive telescope created as part of the International Year of Astronomy 2009, an effort to get as many people on Earth to look up as possible. I think perhaps it would be fitting if I brave the subzero temperature outside, maybe for just a few minutes, and take a look at the mighty planet. Tonight’s display is better than Galileo himself had it: all four moons will be perfectly arrayed, two on each side of Jupiter’s face.
I’m not a very religious man, nor am I a very spiritual man. But I know there will still be a sense of connection, a sense of wonder that I will have tonight that I will share with a man long dead, but whose life and achievements still echo through time.
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On January 7, 1610, Galileo Galilei pointed his “spyglass” to the heavens and stared up at Jupiter, one of the brightest lights in the evening sky, and noted what he at first assumed to be three bright stars near the planet. But over the following nights, he realized that those three bright bodies weren’t fixed in the heavens like stars, but rather seemed to dance around Jupiter along with a fourth, smaller body.
Galileo triumphantly announced his discovery of four “planets” that revolved around Jupiter in his March treatise, Starry Messenger [pdf]. Thinking of his pocketbook, he dutifully proposed naming them the Medicean Stars in honor of his patron, Cosimo de Medici. But the name didn’t stick, and today we honor the scientist rather than the patron by calling Jupiter’s four largest satellites the Galilean moons.
The discovery dealt a death blow to the Ptolemaic understanding of the universe, in which all planets and stars were believed to orbit the Earth. For, as Galileo wrote in his treatise, “our own eyes show us four stars which wander around Jupiter as does the moon around the earth.”
In the 400 years that have passed since Galileo first laid eyes on them, we’ve learned a great deal about the moons Io, Europa, Ganymede, and Callisto (all named after the mythological paramours of Jupiter). If all goes according to plan we’ll soon get to know them much more intimately–NASA and the European Space Agency are currently planning missions to closely observe three of the moons. Click though this gallery to view NASA’s most stunning photos of the four satellites, and to find out what we’ve discovered in the four centuries since Galileo began the work.
(For more on Galileo’s discovery and what it meant to science, check out this post from DISCOVER’s Phil Plait.)
Image: NASA/JPL/DLR
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Back and forth go the studies investigating whether cell phone uses increases the risk of brain cancer (the latest one to get major press, released last month, found nothing there). This week, though, new research has grabbed the headlines by declaring that our ubiquitous communication and time-wasting devices could actually provide a health benefit.
In a study set to come out today in the Journal of Alzheimer’s Disease (and funded in part by the National Institute on Aging), a group led by Gary Arendash argues that the radiation from cell phones that we’ve been worrying about could protect against Alzheimer’s Disease. But it’s far too soon to advise people to start medicating themselves by talking even longer on the phone.
Researchers at the Florida Alzheimer’s Disease Research Center arranged about 70 mouse cages in a circle around a central antenna that emitted electromagnetic waves typical of what would emanate from a phone pressed to a human head. They were exposed to the radiation for two hours a day over seven to nine months. About two dozen other mice served as controls [Los Angeles Times]. Arendash’s team used mice they had genetically engineered to develop the brain buildups and memory problems typical of Alzheimer’s when they got older. The team says that the memory problems of those mice exposed to the radiation began to disappear during the study. Not only that, but normal mice (that hadn’t been genetically engineered) also showed memory improvements after exposure.
Why? The researchers showed that exposing old Alzheimer’s mice to the electromagnetic waves generated by cell phones erased brain deposits of beta-amyloid, a protein strongly associated with Alzheimer’s disease. Clumps of beta-amyloid form so-called brain plaques that are a hallmark of the disease [LiveScience]. According to the scientists, the slight increase in brain temperature brought on by the radiation could’ve caused the mouse brains to release those plaques.
Arendash surprised himself, saying that before the study he’d expected to see that cell phone use would make dementia worse. “Quite to the contrary, those mice were protected if the cell phone exposure was stared [sic] in early adulthood. Or if the cellphone exposure was started after they were already memory- impaired, it reversed that impairment,” Arendash said [Reuters]. When the benefits for the mice continued without any noticeable detriments, he was sold.
Glowing from success, Arendash and USF colleagues said future research could determine the best “dosage” of radiation for targeting these brain plaque deposits: the 918 megaHerz in US mobile phones, 800 megaHerz in European phones, or another frequency — and how long effective “treatment” would have to be [AFP].
Let’s not get ahead of ourselves here, though. The work by Arendash opens up all kinds of avenues for possible research, but research on the health effects of cell phones seems prone to long, drawn out studies and occasionally contradictory headlines, like those we see about red wine or coffee being good or bad. William Thies, chief medical and scientific officer of the Alzheimer’s Association, warned against self-medicating with extra cell use based on these findings. (And just yesterday we covered the scientist smackdown over whether a virus truly causes chronic fatigue syndrome, with the British researchers now arguing that the link isn’t proven, and warning people not to seek out antiretroviral drugs.)
The next steps: Other researchers will try to replicate Arendash results in mice, and if they do so, scientists can go on to test whether electromagnetic waves have the same effect on humans.
Related Content:
80beats: Can You Fear Me Now? Cell Phone Use Not Linked to Brain Cancer
80beats: Cancer Doctor Issues Warning About Cell Phones, And Causes Panic
80beats: Scientist Smackdown: Is a Virus Really the Cause of Chronic Fatigue Syndrome?
80beats: Lack of ZZZZs Linked to Alzheimer’s in Mice
80beats: Electrical Brain Stimulation Prompts Big Hopes—And a Dash of Concern
Image: University of South Florida
First light from WISE. Image Credit: NASA/JP-Caltech/UCLA
The Wide-field Infrared Survey Explorer also known as WISE gets its first view of the sky. I have to say, this is pretty remarkable, less than a month between launch and releasing a first light image.
Among the ambitious plans for the WISE mission is the detection of Brown Dwarf stars down to a temperature of 150o K out to 10 light years, and 450oK out to 75 light years. This of course is very interesting because at the moment if the failed stars are there they are invisible to us.
Another very exciting aspect of this mission is the hunt for asteroids and an extensive education and public outreach program led by UC Berkeley. Apparently they are going to involve the public in searching for the asteroids including students. So that IMHO makes this one of the most exciting missions in a while. More about the education and public outreach. Oh and you may note the 150oK is around -190oF/-123oC!!
Pay a visit to the WISE website by clicking the link below for more details about this mission.
About the image from the WISE website:
This infrared snapshot of a region in the constellation Carina near the Milky Way was taken shortly after NASA’s Wide-field Infrared Survey Explorer (WISE) ejected its cover. The “first-light” picture shows thousands of stars and covers an area three times the size of the Moon. WISE will take more than a million similar pictures covering the whole sky. The image was captured as the spacecraft stared in a fixed direction, in order to help calibrate its pointing system. The mission’s survey will be done while the satellite continuously scans the sky, and an internal scan mirror counteracts the motion to create freeze-frame images. The team is working now to match the motions of the spacecraft and the scan mirror precisely. This eight-second exposure shows infrared light from three of WISE’s four wavelength bands: Blue, green and red correspond to 3.4, 4.6, and 12 microns, respectively.
Well, it still is in some parts of the world:
KUALA LUMPUR — Rohaya Mohamad, 44, is an articulate, bespectacled medical doctor who studied at a university in Wales. Juhaidah Yusof, 41, is a shy Islamic studies teacher and mother of eight. Kartini Maarof, 41, is a divorce lawyer and Rubaizah Rejab, a youthful-looking 30-year-old woman, teaches Arabic at a private college.
The lives of these four women are closely entwined — they take care of each others’ children, cook for each other and share a home on weekends.
They also share a husband.
So, should polygamy be legal? To address this question, I think it is useful to consider two prior questions:
Should government "supply" and enforce the particular bundle of contracts known as marriage?
If it does so, should it restrict this supply to opposite-sex couples?
My answer to the first question is no: government should establish and enforce default rules about the division of property from communal living arrangements, about inheritances, and about guardianship of children, but it need not and should not bundle these rules into the particular package known as marriage.
My answer to the second question is also no. If goverment is going to supply marriage, it should do so in the most neutral way possible. This means treating same-sex marriage and polygamy just like opposite-sex marriage. Government should calls these contracts civil unions, leaving marriage to religious institutions.
Moon Rock Gains Traveling Companion for Historic Return to Space
"Collected from the Sea of Tranquility on the lunar surface, the moon rock and its Mt. Everest companion will be displayed inside the station's Tranquility module, which the STS-130 crew will deliver to the station. During the presentation, Parazynski will share the story of his journey to the top of the world and what inspired him to carry along the lunar sample, followed by an audience question and answer session. The event is scheduled from 11 a.m. to noon CST in the Blast Off Theater in the Mission Status Center at Space Center Houston. NASA Television will air a recording of the event at 3:30 p.m.
Updates, photos and videos during the presentation will be posted on NASA's Johnson Space Center Twitter feed and can be followed using the hashtag #moon_everest. From 12:30 to 1 p.m., Parazynski will answer questions live via Twitter. To follow Johnson on Twitter, visit: http://www.twitter.com/NASA_Johnson"
You can read up on Scott's climb at onorbit.com/everest
Playing With Moon Rocks and Duct Tape at the Dinner Table
"You see, as a precaution of sorts, I had the Nugget [our code name for the Moon rock] blessed in a Buddhist Temple in Pengboche on the trek in to Base Camp. Climbers have all manner of things (including themselves) blessed all the time. But this was special. And how people (westerners and Sherpas) reacted to these little pieces of the Moon really caught Scott and I by surprise. But that's another story I'll have to write about soon."
Preview: Confessions of a Moon Rock Courier
"I facilitated telephone conversations with astronauts aboard the International Space Station and communicated via satellite with the real world on a daily basis. I lived amidst a place with powerful historic resonances. And I encountered a people - Sherpas - with an other-worldly and serene approach to life, teaching one of them to look up at the night sky to track satellites while I watched others treat the moon rock I carried as a sacred object."
At our practice we run a pretty tight ship when it comes to security of patient records. Why do we do this? Well there are 2 big reasons.
SEC. 13404
Sec. 1320d-6. Wrongful disclosure of individually identifiable health information (a) Offense A person who knowingly and in violation of this part-- (1) uses or causes to be used a unique health identifier; (2) obtains individually identifiable health information relating to an individual; or (3) discloses individually identifiable health information to another person, shall be punished as provided in subsection (b) of this section. (b) Penalties A person described in subsection (a) of this section shall-- (1) be fined not more than $50,000, imprisoned not more than 1 year, or both; (2) if the offense is committed under false pretenses, be fined not more than $100,000, imprisoned not more than 5 years, or both; and (3) if the offense is committed with intent to sell, transfer, or use individually identifiable health information for commercial advantage, personal gain, or malicious harm, be fined not more than $250,000, imprisoned not more than 10 years, or both.
So let's say someone hacked a record to get the one up on you, maybe you are a political candidate or maybe a business competitor, or maybe they want to sue you.......If this rogue hacker performs an act of this on genomic information ordered by a doctor or that can be defined as PHI, these are the penalties. If it is not considered PHI, it is a far lesser offense.......So the question is, do you want these protections if you are a customer/patient? I would say Hell Yeah.But do you want them as a covered entity? Uhhhhh.....Ahem.......Well........As a doctor we have to follow these. Why shouldn't anyone else who has been given the responsibility of handling human samples?The Sherpa Says: As a consumer HITECH is great. But as a start up company it can prove to be a nightmare. But those who have to risk the most are the huge companies making millions of dollars....can you say class action lawsuit for millions? I know a few lawyers who would be interested in that! I wonder if the DTC Genomics investors thought of that