Jupiter's Big Red Spot Swallows the Competition

MYSTERY OF LEVITATION SOLVED ???

Levitation has been elevated from being pure science fiction to science fact, according to a study reported today by physicists.

Beijing saleswoman demonstrates toy which levitates by magnetic force; Physicists have 'solved' mystery of levitation
In theory the discovery could be used to levitate a person

In earlier work the same team of theoretical physicists showed that invisibility cloaks are feasible.

Now, in another report that sounds like it comes out of the pages of a Harry Potter book, the University of St Andrews team has created an 'incredible levitation effects’ by engineering the force of nature which normally causes objects to stick together.

Professor Ulf Leonhardt and Dr Thomas Philbin, from the University of St Andrews in Scotland, have worked out a way of reversing this pheneomenon, known as the Casimir force, so that it repels instead of attracts.

Their discovery could ultimately lead to frictionless micro-machines with moving parts that levitate But they say that, in principle at least, the same effect could be used to levitate bigger objects too, even a person.

The Casimir force is a consequence of quantum mechanics, the theory that describes the world of atoms and subatomic particles that is not only the most successful theory of physics but also the most baffling.

The force is due to neither electrical charge or gravity, for example, but the fluctuations in all-pervasive energy fields in the intervening empty space between the objects and is one reason atoms stick together, also explaining a “dry glue” effect that enables a gecko to walk across a ceiling.

Now, using a special lens of a kind that has already been built, Prof Ulf Leonhardt and Dr Thomas Philbin report in the New Journal of Physics they can engineer the Casimir force to repel, rather than attact.

Because the Casimir force causes problems for nanotechnologists, who are trying to build electrical circuits and tiny mechanical devices on silicon chips, among other things, the team believes the feat could initially be used to stop tiny objects from sticking to each other.

Prof Leonhardt explained, “The Casimir force is the ultimate cause of friction in the nano-world, in particular in some microelectromechanical systems.

Such systems already play an important role - for example tiny mechanical devices which triggers a car airbag to inflate or those which power tiny 'lab on chip’ devices used for drugs testing or chemical analysis.

Micro or nano machines could run smoother and with less or no friction at all if one can manipulate the force.” Though it is possible to levitate objects as big as humans, scientists are a long way off developing the technology for such feats, said Dr Philbin.

The practicalities of designing the lens to do this are daunting but not impossible and levitation “could happen over quite a distance”.

Prof Leonhardt leads one of four teams - three of them in Britain - to have put forward a theory in a peer-reviewed journal to achieve invisibility by making light waves flow around an object - just as a river flows undisturbed around a smooth rock.

ALCOHOL - HELPS PEOPLE GET LAID ?

FROM POPSCI.COM
In testament to a tried-and-true move in the human mating game, European scientists have noticed that young people in bars and nightclubs across the land are using alcohol and drugs to grease the wheels of foreplay.

The results of a survey of 1,341 European clubgoers, which were recently published in the journal BMC Public Health, indicate that a third of 16 to 35-year-old males and a quarter of females intentionally drink alcohol to increase their chances of sex. Drugs like marijuana, cocaine, and ecstasy were chosen to prolong or improve sex. It’s no accident, the research team concluded, that sexual activity often accompanies substance abuse.

“Trends in recent decades have resulted in recreational drug use and binge drinking becoming routine features of European nightlife,” said lead author Mark Bellis, a public-health researcher from Liverpool John Moores University in England.

The researchers also learned from their study cohort that coupling while drunk or high was strongly associated with morning-after reports of unsafe sex or feelings of regret. These negative outcomes, Bellis said, do not appear to discourage this mating strategy.
WOW ! WHO KNEW ? i THOUGHT THIS WAS JUST A MYTH

THE EYE - DIGITALLY ENHANCED ?

Movie characters from the Terminator to the Bionic Woman use bionic eyes to zoom in on far-off scenes, have useful facts pop into their field of view, or create virtual crosshairs. Off the screen, virtual displays have been proposed for more practical purposes -- visual aids to help vision-impaired people, holographic driving control panels and even as a way to surf the Web on the go.

The device to make this happen may be familiar. Engineers at the University of Washington have for the first time used manufacturing techniques at microscopic scales to combine a flexible, biologically safe contact lens with an imprinted electronic circuit and lights.

"Looking through a completed lens, you would see what the display is generating superimposed on the world outside," said Babak Parviz, a UW assistant professor of electrical engineering. "This is a very small step toward that goal, but I think it's extremely promising." The results were presented today at the Institute of Electrical and Electronics Engineers' international conference on Micro Electro Mechanical Systems by Harvey Ho, a former graduate student of Parviz's now working at Sandia National Laboratories in Livermore, Calif. Other co-authors are Ehsan Saeedi and Samuel Kim in the UW's electrical engineering department and Tueng Shen in the UW Medical Center's ophthalmology department.

There are many possible uses for virtual displays. Drivers or pilots could see a vehicle's speed projected onto the windshield. Video-game companies could use the contact lenses to completely immerse players in a virtual world without restricting their range of motion. And for communications, people on the go could surf the Internet on a midair virtual display screen that only they would be able to see.

"People may find all sorts of applications for it that we have not thought about. Our goal is to demonstrate the basic technology and make sure it works and that it's safe," said Parviz, who heads a multi-disciplinary UW group that is developing electronics for contact lenses.

The prototype device contains an electric circuit as well as red light-emitting diodes for a display, though it does not yet light up. The lenses were tested on rabbits for up to 20 minutes and the animals showed no adverse effects.

Ideally, installing or removing the bionic eye would be as easy as popping a contact lens in or out, and once installed the wearer would barely know the gadget was there, Parviz said.

Building the lenses was a challenge because materials that are safe for use in the body, such as the flexible organic materials used in contact lenses, are delicate. Manufacturing electrical circuits, however, involves inorganic materials, scorching temperatures and toxic chemicals. Researchers built the circuits from layers of metal only a few nanometers thick, about one thousandth the width of a human hair, and constructed light-emitting diodes one third of a millimeter across. They then sprinkled the grayish powder of electrical components onto a sheet of flexible plastic. The shape of each tiny component dictates which piece it can attach to, a microfabrication technique known as self-assembly. Capillary forces -- the same type of forces that make water move up a plant's roots, and that cause the edge of a glass of water to curve upward -- pull the pieces into position.

The prototype contact lens does not correct the wearer's vision, but the technique could be used on a corrective lens, Parviz said. And all the gadgetry won't obstruct a person's view.

"There is a large area outside of the transparent part of the eye that we can use for placing instrumentation," Parviz said. Future improvements will add wireless communication to and from the lens. The researchers hope to power the whole system using a combination of radio-frequency power and solar cells placed on the lens, Parviz said.

A full-fledged display won't be available for a while, but a version that has a basic display with just a few pixels could be operational "fairly quickly," according to Parviz.

The research was funded by the National Science Foundation and a Technology Gap Innovation Fund from the University of Washington.

###

For more information, contact Parviz at (206) 616-4038 or babak@ee.washington.edu.

FINALLY - A BEER THAT CURES CANCER ! ! !

Cancer-fighting agent found in beer

MUNICH, Germany, Dec. 31 (UPI) -- A key ingredient of beer may contain a cancer-fighting substance, a German study indicated.

Studies indicated xanthohumol, found in hops, inhibits a family of enzymes that can trigger the cancer process, as well as help the body detoxify carcinogens, science newswire Ivanhoe reported Monday. Preliminary studies at Oregon State University show that xanthohumol can kill breast, colon, ovarian and prostate cancers.

"It's very healthy. I think the ingredients in the beer are very good," Werner Back of Brewing Technology at the Technical University of Munich.

Xanthohumol contains more powerful antioxidants than vitamin E and some studies indicate it helps reduce oxidation of bad cholesterol, the newswire reported.

"Xanthohumol has been shown to be a very active substance against cancer," said Markus Herrmann , also in Munich. "It comes in small sticky beads, which you find within the hops."

But don't frost that mug just yet. It would take 60 regular beers to equal the amount of xanthohumol German researchers are able to brew in their one super beer.

WHAT WILL THOSE GERMANS COME UP WITH NEXT ???

DO BLONDES MAKE EVERYONE DUMBER ?

While blondes may have more fun, a new study suggests that fair-haired ladies may be making those around them dumber.

Researchers found that men's scores on general knowledge tests drop when they are shown photos of blonde women, the Sunday Times of London reported.

Upon further inspection, it was found that the test subjects were not distracted by the light hair, but driven by social stereotypes to "think blonde."

"This proves that people confronted with stereotypes generally behave in line with them," Thierry Meyer, joint author of the study and professor of social psychology at the University of Paris X-Nanterre, told the Times of London. "In this case blondes have the potential to make people act in a dumber way, because they mimic the unconscious stereotype of the dumb blonde."

The study indicates a belief by scientists that stereotyping is a powerful driving force in interacting with others.


For example, previous research found that people talk more slowly in front of the elderly, the Times reported.

WHAT DOES THIS ALL MEAN ???

glumbert - Shift Happens

THE VIEW - "IS THE WORLD FLAT" ?

WHOOPI THROWS OUT A RHETORICAL QUESTION TO CREATE A FRAME OF REFERENCE, BUT INADVERTENTLY "OUTS" HER CO-HOST AS CLUELESS !!!..OF COURSE IN A STRICTLY METAPHYSICAL WORLD "I DON'T KNOW" IS THE PROPER ANSWER ...

glumbert - View co-host doesn't know if Earth is flat

THE AMAZING FROZEN SMOKE "AEROGEL"

A MIRACLE material for the 21st century could protect your home against bomb blasts, mop up oil spillages and even help man to fly to Mars.

Aerogel, one of the world’s lightest solids, can withstand a direct blast of 1kg of dynamite and protect against heat from a blowtorch at more than 1,300C.

Scientists are working to discover new applications for the substance, ranging from the next generation of tennis rackets to super-insulated space suits for a manned mission to Mars.
Background

It is expected to rank alongside wonder products from previous generations such as Bakelite in the 1930s, carbon fibre in the 1980s and silicone in the 1990s. Mercouri Kanatzidis, a chemistry professor at Northwestern University in Evanston, Illinois, said: “It is an amazing material. It has the lowest density of any product known to man, yet at the same time it can do so much. I can see aerogel being used for everything from filtering polluted water to insulating against extreme temperatures and even for jewellery.”

Aerogel is nicknamed “frozen smoke” and is made by extracting water from a silica gel, then replacing it with gas such as carbon dioxide. The result is a substance that is capable of insulating against extreme temperatures and of absorbing pollutants such as crude oil.

It was invented by an American chemist for a bet in 1931, but early versions were so brittle and costly that it was largely consigned to laboratories. It was not until a decade ago that Nasa started taking an interest in the substance and putting it to a more practical use.

In 1999 the space agency fitted its Stardust space probe with a mitt packed full of aerogel to catch the dust from a comet’s tail. It returned with a rich collection of samples last year.

In 2002 Aspen Aerogel, a company created by Nasa, produced a stronger and more flexible version of the gel. It is now being used to develop an insulated lining in space suits for the first manned mission to Mars, scheduled for 2018.

Mark Krajewski, a senior scientist at the company, believes that an 18mm layer of aerogel will be sufficient to protect astronauts from temperatures as low as -130C. “It is the greatest insulator we’ve ever seen,” he said.

Aerogel is also being tested for future bombproof housing and armour for military vehicles. In the laboratory, a metal plate coated in 6mm of aerogel was left almost unscathed by a direct dynamite blast.

It also has green credentials. Aerogel is described by scientists as the “ultimate sponge”, with millions of tiny pores on its surface making it ideal for absorbing pollutants in water.

Kanatzidis has created a new version of aerogel designed to mop up lead and mercury from water. Other versions are designed to absorb oil spills.

He is optimistic that it could be used to deal with environmental catastrophes such as the Sea Empress spillage in 1996, when 72,000 tons of crude oil were released off the coast of Milford Haven in Pembrokeshire.

Aerogel is also being used for everyday applications. Dunlop, the sports equipment company, has developed a range of squash and tennis rackets strengthened with aerogel, which are said to deliver more power.

Earlier this year Bob Stoker, 66, from Nottingham, became the first Briton to have his property insulated with aerogel. “The heating has improved significantly. I turned the thermostat down five degrees. It’s been a remarkable transformation,” he said.

Mountain climbers are also converts. Last year Anne Parmenter, a British mountaineer, climbed Everest using boots that had aerogel insoles, as well as sleeping bags padded with the material. She said at the time: “The only problem I had was that my feet were too hot, which is a great problem to have as a mountaineer.”

However, it has failed to convince the fashion world. Hugo Boss created a line of winter jackets out of the material but had to withdraw them after complaints that they were too hot.

Although aerogel is classed as a solid, 99% of the substance is made up of gas, which gives it a cloudy appearance.

Scientists say that because it has so many millions of pores and ridges, if one cubic centimetre of aerogel were unravelled it would fill an area the size of a football field.

Its nano-sized pores can not only collect pollutants like a sponge but they also act as air pockets.

Researchers believe that some versions of aerogel which are made from platinum can be used to speed up the production of hydrogen. As a result, aerogel can be used to make hydrogen-based fuels.

Scientists reveal secret of levitation ! ! !

Scientists have discovered a ground-breaking way of levitating ultra small objects, which may revolutionise the design of micro-machines, a new report says.

Physicists said they can create "incredible levitation effects" by manipulating so-called Casimir force, which normally causes objects to stick together by quantum force.

The phenomenon could be used to improve the performances of everyday devices ranging from car airbags to computer chips, say Professor Ulf Leonhardt and Dr Thomas Philbin from Saint Andrews University.

Casimir force -- discovered in 1948 and first measured in 1997 -- can be seen in a gecko's ability to stick to a surface with just one toe.

Now the British scientists say they can reverse the Casimir force to cause an object to repel rather than attract another in a vacuum.

"The Casimir force is the ultimate cause of friction in the nano world, in particular in some micro-electromechanical systems," said Leonhardt, writing in the August issue of New Journal of Physics.

"Micro or nano machines could run smoother and with less or no friction at all if one can manipulate the force," he added.

And he added: "In order to reduce friction in the nanoworld, turning nature's stickiness into repulsion could be the ultimate remedy. Instead of sticking together, parts of micromachinery would levitate."

Leonhardt stressed that the practise is possible only for micro-objects.

But he underlined that, although in principle it may one day be possible to levitate humans, that day is a long way off.

"At the moment, in practice it is only going to be possible for micro-objects with the current technology, since this quantum force is small and acts only at short ranges," he said.

"For now, human levitation remains the subject of cartoons, fairytales and tales of the paranormal."

Their research was to be published in the New Journal of Physics.

NEW PLANET WITH WATER FOUND ! ! !

Astronomers on Wednesday announced they had spotted the first planet beyond the Solar System that has water, the precious ingredient for life.

The watery world, though, is far beyond the reach of our puny chemically-powered rockets -- and in any case is quite uninhabitable.

It is made of gas rather than rock and its atmosphere reaches temperatures hot enough to melt steel, which means the water exists only as superheated steam.

The find, named HD189733b, is about 15 percent bigger than our Jupiter and orbits a star in the constellation of Vulpecula the Fox, according to a paper released by Nature, the weekly British science journal.
FULL STORY HERE !

WACKY INVENTOR MAKES FUEL OUT OF SALTWATER !

glumbert.com - Saltwater into Fire

SARAH CONNOR CHRONICLES - TEASER ! ! !

THE NEW TERMINATOR IS A CHICK !

DOES SIZE REALLY MATTER ? ? ?

PLANETARY SCALE MODLES
WOW, I FEEL SO INSIGNIFICANT !!!

KURT VONNEGUT INTERVIEW

THE SCIENCE OF FLUID - "LEAPING SHAMPOO"

glumbert.com - Leaping Shampoo