hi gents,
i have universal half wave self excited automatic voltage regulator for ac generator. this is how it says in the manual, the regulator contnuous load current is 7.5 dc amps.
what they mean by self excited regulator! do they mean that this regulator is for self excited gen
Across New York, there are USB drives embedded in walls, buildings and curbs. The idea is to create an anonymous, offline file-sharing network in public space. The drives are completely public and anyone can plug in to drop and download files. More »
can we transmitt electric current in ray,which can't harm our environment and animal
Here's another contender for kid costume of the year: a homemade Jawa costume for a 4 year old complete with brown hoodie and glowing yellow eyes. It's so cute, yet so "real". More »
UPDATE: SOLVED by El at 12:50 CDT
It’s Saturday already. Have you ever noticed how some weeks seem to speed by so fast, you’re not sure what happened to the individual days? People tell me it’s a sign of old age to gripe about how fast the days go by.
The riddle this week will require a touch of imagination from you, but nothing too radical. Your answer is an iconic SciFi event. Are you ready? ONE for the money…
TWO for the show…
THREE to get ready… and
FOUR TO GO!
..
While today’s answer is an iconic SciFi event, you are aware of down-to-Earth versions of this event occurring all through history.
Quite simply, this must occur.
Everything follows from this.
Image by Dietrich Bartel, all rights reserved
..
When used as a SciFi theme or plot device, this iconic event strikes a deep chord.
Without this event, SciFi as we know it pretty much isn’t happening.
This event has been addressed by mainstream scientists as well as SciFi authors.
..
There we are; short ‘n sweet. I’m thinking you don’t need too many clues for this one, so enjoy. You know where I’m lurking.
Earlier this month, Motorola sued Apple for pretty much everything phone-related: MobileMe, the App Store, location based services, antenna design, and so forth. One thing Moto didn't mention however, was multitouch. So guess what happened? Apple decided to sue Motorola right back, filing two patent infringement lawsuits that cover six patents regarding, you guessed it, multitouch. More »
News
By far my favourite story of the week: drunken 19th-century cobra-wrangling. “Girling, emboldened by gin, had walked past the railing in the reptile house and proceeded to lift out a Morocco Snake from its glass-fronted cage. Despite the protests of his friend, he draped this snake around the unfortunate Stewart, crying “I am inspired!”… Stewart went about his work only to hear his friend cry “Now for the cobra”–a statement which must have chilled him into instant sobriety.”
“Deep in your brain there are probably several thousand neurons that will respond only to the sight of Lady Gaga.” Carl Zimmer teaches you how to harness your Marilyn Monroe neurons, while the BBC covers the same story with some crap about dream-recording.
“When I opened the new certificate, I found that the name of my mother was in fact my sister’s.” How Nobel Prize-winner Paul Nurse got the greatest genetic insight of his life, by Robin McKie.
An excellent and personal overview of the successful Science is Vital campaign by Della, one of its ringleaders.
A robot with pudgy, beanbag-like hands can grip a variety of objects (and would still have made a better bench scientist than me).
Mark Henderson covers the 1,000 Genomes Project, the study that shows how nobody’s perfect.
Where did all these monkeys come from? – Fossil teeth may hint at an Asian origin for anthropoid primates, says Brian Switek.
A giant virus has been found in a Cafeteria. Meanwhile, Ars Technica’s coverage attracts a grammar idiot, and an absolutely legendary takedownA great interview with an awesome headline. Katherine Harmon talks to the folks who sequenced Ozzy Osbourne’s genome.
A great analysis at Neuroanthropology about the role of cooking in human evolution.
A fifth of animals with backbones are endangered. England’s footballers are in the clear then.
“Young New Caledonian crows learn to use tools by going to “tool-school“, where they can observe their parents at work.”
More after the jump…
“It’s just an animal.” An award-winning (and utterly upsetting) photo essay on the international trade in wildlife products
“We care about people we know, even if they vote for the other party.” Jonah Lehrer on social closeness.
How monarch butterfly mums medicate their young, from A Scientific Nature
Why published papers in the behavioural sciences are quite likely to be wrong.
Mystery solved: Horrific corkscrew killings of British seals blamed on ducted propellers (paywall, Times, subscription needed, yadda yadda).
Imagopressionism? Southeastern Louisiana University researcher uses paintings made by maggots to turn students on to forensic entomology
Michael Marshall pays tribute to ancient fertiliser for promoting the evolution of complex life.
SciCurious explains how fat rat fathers beget pre-diabetic daughters
Russian bears eating human corpses out of graveyards. Are they drunk on second-hand vodka?
“The multiply mutated mouse and the black-faced cat are marvellous examples of how what seems simple is not, of how nature and nurture work together, and of how little geneticists understand about their own science.” Steve Jones on genetics, ADHD and the media
“We march to a different drummer.” A great piece on Aspergirls – women on the autistic spectrum – by Steve Silberman.
Researchers resurrect (part of) an ancient chimp virus.
The new snub-nosed monkey that sneezes when it rains via @eol
The terrifying chupacabras monster is… a mite-bitten coyote with mange.
Want to find out why lizards do push-ups? Build a robot lizard. Jason Goldman explains.
“Where are the women in the ‘population control’ debate?” Naomi MC asks and answers in the Guardian.
“Participants with lower levels of agreeableness responded more favorably to an angry leader.” Heh.
An excellent post on Williams Syndrome, and the linguistic side of a fascinating developmental disorder
In space, no one can hear you cover the world in soot. How space tourism could affect our climate, in New Scientist.
Narwhals: like research assistants but more awesome.
Heh/wow
Explaining the Internet to a 19th Century British Street Urchin
“Detailed retrospective history also confirmed accidental inhalation of the condom during fellatio.”
The physics of the wet dog shake, with some great hi-speed video
I love that the NYT publishes stuff like this – just the pure unalloyed joy of Sean Carroll being awed by king cobras, king snakes and other reigning reptiles.
Absolutely stunning photos of insects trapped in amber
A gallery of incredible new Amazon species including bald parrots, blue-fanged tarantulas and turnip-tailed geckos.
Beautiful Brainbow art.
When the kids of the future grow up, they will hunt down and brutalise the inventors of this little hell-gadget
A Maine diver fends off a shark with a camera
Blogging/internet/journalism
Hearty congratulations to Nick Lane for winning this year’s final Royal Society book prize for his amazing book Life Ascending. You should buy it, if you haven’t already. Meanwhile, Philip Ball decries the shameful death of the prize.
The Open Notebook: an awesome new site looking at the stories behind the stories. Journalists dissect their craft, starting with David Dobbs.
The Guardian bucks the trend by releasing blogging guidelines for journalists that are spectacularly spot on. Other newspapers should take note.
A stunning, brave and personal post by Sophia Collins about her abortion.
Deborah Blum writes about the trouble with scientists, Dr Isis replies on the trouble with journalists, and everyone gets drunk in the end.
“If you ever wanted to see how the media simultaneously loves and destroys stories on sex and science, this week we had a classic example of truly bad sex coverage,” says Petra Boynton.
The ever-provocative Alom Shaha urges skeptics to stop preaching to the converted
““Dude, you are speaking Romulan,” one of my colleagues blurted out… So before teaching scientists how to speak to nonscientists, perhaps scientists should first learn how to speak to other scientists.” An awesome post at the Plainspoken Scientist.
Can journalism students blog their way into a job? This lot can.
Now Hear This: a blog about sound. Which sounds cool.
Robert Niles eloquently explains why he’s no longer a newspaper subscriber.
Alice Bell asks, “Who’s the geek?” Icons of nerdery answer her.
Sophia Collins argues for young people’s involvement in science funding decisions.
In this week's Gizmodo University: Discover Electronics, we're diving headfirst into the principle theories of electronics. The second of four classes in this series, "Volts, Amps, and Ohms" is presented in conjunction with Sparkle Labs. More »
Good day all,
I am an electrical engineer new to the practical field. I am keen and want to read SLDs. Can you recommend any website where I can get them. Read, analysize and study them.
Awaiting your assistance.
Regards,
SLD Reader
 |
| Chris Kim |
Keith Norbury of This Magazine has published a piece called Technology, ethics, and the real meaning of the “Rapture of the Nerds”. I was interviewed for this article and asked questions about the state of transhumanism and singularitarianism today in Toronto and Canada in general. We also discussed the the tendency of the press and the public to roll all transhumanists into the Singularity camp, which, as I pointed out, was a mistake:
Not all people who believe in technology’s power to transform humanity are Singularitarians. Transhumanists, as their name implies, also expect technology to alter the species. “These are two communities that seem to have a connection,” says George Dvorsky, president of the Toronto Transhumanist Association. “It doesn’t necessarily mean that one follows the other. I happen to know many transhumanists who don’t buy into the Singularity at all.”
While both groups believe that rapid technological progress will radically reshape our lives, the Singularitarians believe a unified, superhuman intelligence is a necessary part of that change. Transhumanists believe no such super-intelligent entity is necessary. Either way, both believe that our future will be completely unrecognizable. “We are talking about transforming what it means to be human,” Dvorsky says.
The article also goes on to describe how interest in the TTA and local transhumanist chapters has waned in the past several years. I'm rather frustrated by Norbury's angle on this, which is to suggest that the fringe is getting fringier, and that good work isn't being done in these areas through other channels. The fact of the matter is that these ideas, namely the notion of human enhancement and the unknown potential for a greater-than-human artificial intelligence, are being addressed by a diverse and distributed group of individuals—and just as importantly, these ideas are slowly (but surely) being normalized into our daily discourse.
Indeed, organizing local meet-ups are all fine and well, but that's not where the rubber hits the road. I've made a conscious effort over the past few years to devote most of my time and energy to my blog, Humanity+, and the Institute for Ethics and Emerging Technologies where my outreach is considerably greater and more impactful than through a local chapter alone. Annoyingly, Norbury failed to make mention any of these and chose to focus on the TTA and chapter-level organizing which is no longer of any real interest to me.
Below is a video from a high altitude balloon flight that someone recently did.
Nothing new now days. But what Is new is the sound of a Jet passing by.
I wonder if anyone could calculate the distance the jet passed by, by the sound of the doppler shift and it's intensity.
Obviously the cl
Space Shuttle Discovery now set for Wednesday Launch, SpaceRef
"After meeting this morning to discuss the status of repairs to replace both shuttle and ground side couplings, NASA Managers decided to delay the launch another 24 hours to allow engineers to complete testing and to allow for repressurization of helium tanks. "
Fall is here and the weather is slowly getting colder. What does that mean? It's time to stay inside, get warm and play some video games. Here are the best video games available right now. More »
There's an ocean of apps out there. Whether you just got your iPhone and are feeling adrift or you're a salty old dog seeing what you might've missed, here are 50 absolutely essential apps. More »
The simplicity of this belies its awesomeness.
Ah yes, they use the Lirpaw. But that’s expected in the koon-ut-kah-li-feeline.
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Birds are often the most visible and audible animal at the beach. Terns and gulls gracefully circle and dive; long-necked herons and egrets stalk the shoreline; and tiny peeps race back and forth along the seashore. But there are many kinds of gulls, terns, herons and peeps. Many come from far away lands and are [...]
If you want fake blood done right, you've got to turn to the professionals. And I'm pretty sure the "I wish this blood were real/yours" look in this man's eyes qualifies him as professional. More »
I need to know the initial moisture contenet and final moisture content of PC (Polycarbonate) RTP 399 X 102168 A material.
If possible also want to have the complete data cheet of the same material.
Bleed Red, White & Blue
I was standing there in Dallas, waiting on a plane. I overheard an old man, tell a young soldier thanks.
The young soldier hung his head and said, it's hard to believe. You're the only one who took the time to say a word to me.
When you go to the polls next Tuesday, remember which Party supports America, and which Party opposes American values -- The Editors
How important is the height of a bolt head to the integrity of the bolted connection?
I would've thought the failure mode will be shear so a bolt head doesn't contribute to failure?
How much can you cut it back before it becomes a concern?
