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Climate Chaos - kurtster - Jul 24, 2014 - 12:57pm
 
The Dragons' Roost - Alexandra - Jul 24, 2014 - 12:57pm
 
OBAMACARE - ScottN - Jul 24, 2014 - 12:43pm
 
Anyone doing/done any MOOCs? - RichardPrins - Jul 24, 2014 - 12:42pm
 
Cryptic Posts - Leave Them Guessing - Antigone - Jul 24, 2014 - 12:39pm
 
LeftWingNutZ - DaveInVA - Jul 24, 2014 - 12:36pm
 
YouTube: Music-Videos - RichardPrins - Jul 24, 2014 - 12:20pm
 
• • • What Makes You Happy? • • •  - ScottN - Jul 24, 2014 - 12:10pm
 
Celebrity Face Recognition - lily34 - Jul 24, 2014 - 12:02pm
 
Climate Change - RichardPrins - Jul 24, 2014 - 11:53am
 
Evolution! - RichardPrins - Jul 24, 2014 - 11:47am
 
What Are You Going To Do Today? - K_Love - Jul 24, 2014 - 11:43am
 
The Chomsky / Zinn Reader - RichardPrins - Jul 24, 2014 - 11:41am
 
Recycle Bin - Proclivities - Jul 24, 2014 - 11:17am
 
Ukraine - marko86 - Jul 24, 2014 - 10:51am
 
That's good advice - expertTexpert - Jul 24, 2014 - 10:46am
 
Name My Band - javahnagila - Jul 24, 2014 - 10:37am
 
The Duran2 Forum - sirdroseph - Jul 24, 2014 - 10:16am
 
Congress - sirdroseph - Jul 24, 2014 - 10:08am
 
Regarding cats - DaveInVA - Jul 24, 2014 - 9:57am
 
Palestine - RichardPrins - Jul 24, 2014 - 9:40am
 
Maps • Google • GeoGuessr - Proclivities - Jul 24, 2014 - 9:32am
 
Summer Concerts - lily34 - Jul 24, 2014 - 9:29am
 
Iraq - Red_Dragon - Jul 24, 2014 - 8:55am
 
Bug Reports & Feature Requests - 2cats - Jul 24, 2014 - 8:38am
 
Sweet horrible irony. - cc_rider - Jul 24, 2014 - 8:33am
 
Military Matters - RichardPrins - Jul 24, 2014 - 8:32am
 
Concert Reviews - ptooey - Jul 24, 2014 - 8:11am
 
Today in History - ScottN - Jul 24, 2014 - 8:06am
 
• • • The Once-a-Day • • •  - oldviolin - Jul 24, 2014 - 7:45am
 
Those Silly FBI Guys! - RichardPrins - Jul 24, 2014 - 7:39am
 
• • • BRING OUT YOUR DEAD • • •  - oldviolin - Jul 24, 2014 - 7:36am
 
Food - Proclivities - Jul 24, 2014 - 7:30am
 
Israel - RichardPrins - Jul 24, 2014 - 7:16am
 
Gaza - mgkiwi - Jul 24, 2014 - 7:15am
 
Photography Forum - Your Own Photos; Please Limit to 510 ... - Coaxial - Jul 24, 2014 - 6:57am
 
Unusual News - Prodigal_SOB - Jul 24, 2014 - 6:52am
 
OUR CATS!! - lily34 - Jul 24, 2014 - 6:50am
 
~*Funny Cats*~ - Proclivities - Jul 24, 2014 - 6:40am
 
PUNCHLINES - Red_Dragon - Jul 24, 2014 - 6:22am
 
Talk Behind Their Backs Forum - VV - Jul 24, 2014 - 6:19am
 
Tomato Gardens - JrzyTmata - Jul 24, 2014 - 6:16am
 
Syria - sirdroseph - Jul 24, 2014 - 6:04am
 
Radio Paradise Comments - lily34 - Jul 24, 2014 - 5:59am
 
Immigration - sirdroseph - Jul 24, 2014 - 5:45am
 
Mixtape Culture Club - sirdroseph - Jul 24, 2014 - 4:48am
 
What Makes You Laugh? - kctomato - Jul 23, 2014 - 9:40pm
 
How's the weather? - Alexandra - Jul 23, 2014 - 8:23pm
 
Things You Thought Today - ScottN - Jul 23, 2014 - 8:12pm
 
Dreams - Tales from your sleep - maryte - Jul 23, 2014 - 7:56pm
 
Annoying stuff. not things that piss you off, just annoyi... - Alexandra - Jul 23, 2014 - 7:40pm
 
Positive Thoughts and Prayer Requests - Coaxial - Jul 23, 2014 - 7:17pm
 
Poetry Forum - Antigone - Jul 23, 2014 - 4:41pm
 
Those lovable NSA/GCHQ/CSEC/DGSE/ASD/CIA guys - miamizsun - Jul 23, 2014 - 4:20pm
 
Damned with faint praise........ - haresfur - Jul 23, 2014 - 4:16pm
 
Background for a quiet dinner party - cc_rider - Jul 23, 2014 - 3:20pm
 
Baseball, anyone? - ScottN - Jul 23, 2014 - 2:46pm
 
Best Song Comments. - ScottFromWyoming - Jul 23, 2014 - 1:55pm
 
Guns - miamizsun - Jul 23, 2014 - 1:31pm
 
Lagged Stream for Europe - BillG - Jul 23, 2014 - 1:23pm
 
RightWingNutZ - RichardPrins - Jul 23, 2014 - 11:40am
 
Bad Poetry - oldviolin - Jul 23, 2014 - 11:28am
 
What is Humanity's best invention? - mutepoint - Jul 23, 2014 - 10:27am
 
Show us your NEW _______________!!!! - cc_rider - Jul 23, 2014 - 9:46am
 
caching in iphone/ipad app - Karetto - Jul 23, 2014 - 8:50am
 
Amazing animals! - Proclivities - Jul 23, 2014 - 7:44am
 
Your Current Crush - mutepoint - Jul 23, 2014 - 7:10am
 
August Photo Theme : Joy - Proclivities - Jul 23, 2014 - 6:49am
 
Great guitar faces - ScottN - Jul 23, 2014 - 6:33am
 
Beta Testers wanted for new iOS app - FourFortyEight - Jul 23, 2014 - 6:15am
 
Counting with Pictures - Proclivities - Jul 23, 2014 - 4:18am
 
Nosemouth - RichardPrins - Jul 23, 2014 - 12:54am
 
Stuff I've Said Out Loud - BlueHeronDruid - Jul 22, 2014 - 9:53pm
 
Pernicious Pious Proclivities Particularized Prodigiously - RichardPrins - Jul 22, 2014 - 5:43pm
 
Favorite Quotes - haresfur - Jul 22, 2014 - 5:27pm
 
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Index » Internet/Computer » The Web » Tech & Science Page: 1, 2, 3 ... 162, 163, 164  Next
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Posted: Jul 19, 2014 - 6:45pm

The rise of data and the death of politics - Evgeny Morozov
Tech pioneers in the US are advocating a new data-based approach to governance – 'algorithmic regulation'. But if technology provides the answers to society's problems, what happens to governments?
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Posted: Jul 11, 2014 - 2:48pm

Human Skin Can Detect Odors, Some of Which May Help Trigger Healing
Olfactory cells occur all over the body, not just in the nose
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Posted: Jul 10, 2014 - 7:38pm

 Stem cell treatment causes nasal growth in woman's back
A woman in the US has developed a tumour-like growth eight years after a stem cell treatment to cure her paralysis failed. There have been a handful of cases of stem cell treatments causing growths but this appears to be the first in which the treatment was given at a Western hospital as part of an approved clinical trial.

At a hospital in Portugal, the unnamed woman, a US citizen, had tissue containing olfactory stem cells taken from her nose and implanted in her spine. The hope was that these cells would develop into neural cells and help repair the nerve damage to the woman's spine. The treatment did not work – far from it. Last year the woman, then 28, underwent surgery because of worsening pain at the implant site.

The surgeons removed a 3-centimetre-long growth, which was found to be mainly nasal tissue, as well as bits of bone and tiny nerve branches that had not connected with the spinal nerves.

The growth wasn't cancerous, but it was secreting a "thick copious mucus-like material", which is probably why it was pressing painfully on her spine, says Brian Dlouhy at the University of Iowa Hospitals and Clinics in Iowa City, the neurosurgeon who removed the growth. The results of the surgery have now been published.

Unpredictable consequences
"It is sobering," says George Daley, a stem cell researcher at Harvard Medical School who has helped write guidelines for people considering stem cell treatments. "It speaks directly to how primitive our state of knowledge is about how cells integrate and divide and expand. " (...)

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Posted: Jun 30, 2014 - 5:25pm

Exclusive: A review of the Blackphone, the Android for the paranoid | Ars Technica

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Posted: Jun 28, 2014 - 5:14pm


Claude Shannon
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Posted: Jun 27, 2014 - 11:46am

7 Scientific Reasons Diagonally Cut Sandwiches Are Better
cut
More Supporting Data


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Posted: Jun 26, 2014 - 11:03pm

Nearby Super-Earth is Best Habitable Candidate So Far

but...

(...) However, it's unclear at the moment just how much Gliese 832c resembles Earth. Indeed, its discoverers think the newfound world may be more similar to scorching-hot Venus, with a thick atmosphere that has led to a runaway greenhouse effect.

"Given the large mass of the planet, it seems likely that it would possess a massive atmosphere, which may well render the planet inhospitable," Wittenmyer and his team wrote in their paper, which has been accepted for publication in The Astrophysical Journal. "Indeed, it is perhaps more likely that GJ (Gliese) 832c is a 'super-Venus,' featuring significant greenhouse forcing."


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Posted: Jun 25, 2014 - 11:13am


mutepoint
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Posted: Jun 24, 2014 - 10:04am

 Lazy8 wrote:
DaveInVA wrote:
Either they're hosting the website somebody's high school kid designed on an original iMac over a dialup connection or the hype is producing too much traffic, but it's been hard to get anything out of their site. From the home page statements it seems they have yet to actually build and test one. 

Site is running WordPress with a paid$ theme.  Site appears overloaded - 503 message.  Likely exceeded their contracted for hosting bandwidth, etc.  Website developer now no longer around/on-line.    Some people's kids...
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Posted: Jun 24, 2014 - 9:03am

DaveInVA wrote:
Either they're hosting the website somebody's high school kid designed on an original iMac over a dialup connection or the hype is producing too much traffic, but it's been hard to get anything out of their site. From the home page statements it seems they have yet to actually build and test one. Some nice CAD renderings and one image that kinda looks like a prototype but too many weasel words like "estimated" and "imagine" around their performance figures.

The sealing problems they claim to have solved are inherent in the rotary design—you have to seal on the perimeter of the rotor, leading to high surface speeds and lots of frictional losses. Their claimed efficiency of 53% ("imagine") is better than the best diesel boat engines, currently the standard for non-turbine internal combustion engines. Until they run one on a dyno (someone else's dyno) I don't believe that for a second.

Don't know what they're claiming for emissions or how they claim to have overcome some of the inherent problems there, especially the large quench areas typical of rotaries.

The rest of their claims are either trivial (fewer moving parts, half crank speed for the same number of firing cycles, compact design—yeah, it's a rotary) or gibberish (60% more "torque leverage" than piston engines...um, whatever). This looks like more hype than progress. Don't go investing the life savings in this.

I recently scored a copy of Sir Harry Ricardo's  classic The High Speed Internal Combustion Engine via free PDF download from Scribd. He covers just about every wonder engine idea anybody has ever had, what the issues were, how well they worked, and why they were abandoned in favor of the contemporary piston engine. It's a very thorough book, easy to comprehend even if you can't do the thermodynamic calculations necessary to produce its many charts and graphs. If you have a brilliant idea for an innovation for an internal combustion engine you'd be wise to check this book first; chances are it's in there.

It doesn't cover the Wankel engine because the first patent wasn't issued on it until 1929. The first edition of Ricardo's book was in 1923.

This is why my first reaction to a claim of a breakthru in internal combustion engines is skepticism. We've made some tremendous strides in materials and control technology and these have driven most of the advances we've seen since the first world war. Clever people have spent years coming up with innovations, and they haven't missed much. Mostly what they've achieved is making things that had already been thought of affordable.
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Posted: Jun 24, 2014 - 7:10am

California company reinvents the rotary engine


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Posted: Jun 20, 2014 - 5:23pm

Above: A pair of small moons orbiting Pluto, discovered by NASA’s Hubble Space Telescope. Photograph: Universal History Archive/UIG via Getty.

This week, amid so much discouraging news of irredentist militias and unrepentant neocons, there was a small bit of news that might cheer people up, at least a little: Pluto, it seems, may be accepted back into the club of planets. It got kicked out, you will recall, eight years ago, when the I.A.U.—the International Astronomical Union, which exists to hold elections on these things—voted it out. It was too remote, too lonely, and generally too slovenly in its behavior to count as a planet. It even—lovely, incriminating phrase—failed to “clear the neighborhood around its orbit.” (And there seemed to be other even larger similar objects out beyond it.) It was demoted to a “dwarf planet,” and became a mere “Trans-Neptunian object.”

Now, though, Pluto has been discovered to have several moons, in regular orbit around it. It was already known to have three when it was de-listed, but the Hubble Space Telescope has since found two more. “Many Moons” was the title of James Thurber’s finest fable, and actually having many moons, apparently, helps make you a planet in the eyes of people on other ones, as having children was once said to make you an adult. One’s planetary distinction is redeemed, by this measure, by the clear presence of the orbit of the littler ones around you. And it could be a vindication for Pluto-lovers, too, a group who turn out to be more numerous than seems quite plausible. As you discover sifting through astronomical chat groups, the original decision to kick Pluto out of the planetary club was met with hysterical resistance, not to say resentment. Indeed, the state of Illinois decided, on its own, in 2009, to reinstate Pluto as a planet—making Pluto a planet when seen from Wrigley Field, merely a sub-Neptunian object across the way in Gary.

Some of the indignation on behalf of Pluto was, as so much indignation is these days, launched in the name of democracy. Apparently, only a small fraction of the I.A.U.’s members were there when the vote that booted Pluto was taken—one imagines it as a kind of Ted Knight-in-“Caddyshack”-style conspiracy of snobs, with poor Pluto in the Rodney Dangerfield part. No respect at all. But more of it seemed purely affective, astronomically tribal. Plutonic nationalism can be found everywhere. There are pro-Pluto Web pages, pro-Pluto books, pro-Pluto pressure groups. They contain, and generate, heated argument and loud accusation. (One anti-Pluto activist produced this perfect sentence: “We’ve heard this emotional story of planetary bullying over and over, so I won’t go over the details again.”) (...)


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Posted: Jun 17, 2014 - 9:51am


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Posted: Jun 14, 2014 - 7:00pm

bananas to join fight against catastrophic results of vitamin A deficiency in Africa

Genetically modified bananas grown in far north Queensland and bound for Africa are about to undergo human trials in the United States.

Queensland University of Technology (QUT) researchers have engineered the fruit to increase the amount of beta-carotene, which is converted to vitamin A in the body.

The aim is to prevent thousands of children in East Africa from dying or going blind as a result of vitamin A deficiency.


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Posted: Jun 13, 2014 - 5:27am

i enjoyed this...

Science is the engine of Prosperity




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Posted: Jun 8, 2014 - 10:49am

Turing Test Passed
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Posted: Jun 5, 2014 - 11:19am

BBC News - Traces of another world found on the Moon

Researchers have found evidence of the world that crashed into the Earth billions of years ago to form the Moon.

Analysis of lunar rock brought back by Apollo astronauts shows traces of the "planet" called Theia.

The researchers claim that their discovery confirms the theory that the Moon was created by just such a cataclysmic collision.

The study has been published in the journal Science.

The accepted theory since the 1980s is that the Moon arose as a result of a collision between the Earth and Theia 4.5bn years ago.

Theia was named after a goddess in Greek mythology who was said to be the mother Selene the goddess of the Moon. It is thought to have disintegrated on impact with the resulting debris mingling with that from the Earth and coalescing into the Moon.

It is the simplest explanation, and fits in well with computer simulations. The main drawback with the theory is that no one had found any evidence of Theia in lunar rock samples.

Earlier analyses had shown Moon rock to have originated entirely from the Earth whereas computer simulations had shown that the Moon ought to have been mostly derived from Theia.

Now a more refined analysis of Moon rock has found evidence of material thought to have an alien origin. (...)


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Posted: Jun 4, 2014 - 11:38am

Gravitational waves turn to dust after claims of flawed analysis | Science | The Guardian
Astronomers who thought they had detected echoes of the big bang may have only seen the effects of space dust
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Posted: May 30, 2014 - 9:33am

3D model of a nerve terminal in atomic detail
Researchers in Germany have created an exquisitely detailed three-dimensional model of a nerve terminal

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Posted: May 30, 2014 - 7:01am

Scientists reconnect with wayward NASA spacecraft launched in 1978


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