Category: Science and Tech

Watch Your Next Film on Gas

While many of us mere mortals may barely understand this, researchers at the University of Maryland have just figured out a way to store film as a gas. Their findings, explained in a paper titled, “Temporally Multiplexed Storage of Images in a Gradient Echo Memory,” explain how they’ve managed to store two frames of light signals with room-temperature gas.

While there aren’t too many practical uses for the findings as of yet, it is possible that it could eventually be part of the building blocks for computers.

At the moment, the technique stores information in very small vials of rubidium and does so by beaming light into a 20cm long tube. Then, when they want to play the film back, they flip it backwards and the control beam is burned on. When the atoms move in the opposite direction, the film plays.

As one of the researchers explained, “The big thing here is that this allows us to do images and do pulses (instead of individual photons) and it can be matched (hopefully) to our squeezed light source, so that we can soon try to store ‘quantum images’ and make essentially a random access memory for continuous variable quantum information. The thing that really attracted us to this method—aside from its being pretty well-matched to our source of squeezed light—is that the ANU group was able to get 87% recovery efficiency from it – which is, I think, the best anyone has seen in any optical system, so it holds great promise for a quantum memory.”
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LiquiGlide: New Finger-Licking Good Invention to Get to the Last Drop

Those of us who love ketchup can now sleep easier at night. That’s because an MIT University team just came up with a new bottle design called LiquiGlide. It’s a “super-slippery” coating that goes on the inside of the bottle to ensure that almost any substance will slide out with ease.

The device took two months to design by the MIT PhD candidate Dave Smith and his team of mechanical engineers and nano-technoogists at the Varanasi Research Group.

Smith explained how they came up with their idea. As he said, “We were really interested in – and still are – using this coating for anti-icing, or for preventing clogs that form in oil and gas lines, or for non-wetting applications like, say, on windshields.  Somehow this sparked the idea of putting it in food bottles – it could be great just for its slippery properties.

He went on to explain, “Plus, most of these other applications have a much longer time to market – we realized we could make this coating for bottles that is pretty much ready. I mean, it is ready, as you can see. We had a limited amount of materials to pick from – I can’t say what they are, but we’ve patented the hell out of it.”

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Smith is no novice to patents – he already holds nine of them. When asked why they decided to focus on bottles, rather than some other substance, Smith explained, “You tell them the market for bottles – just the sauces alone is a $17billion market. And if all those bottles had our coating, we estimate that we could save about one million tons of food from being thrown out every year.”

The team promises that its non-toxic coating with become FDA approved and that it is completely safe for users.

Now that sounds finger-licking good!

Scientists Turn Skin Tissue into Beating Heart Cells

Scientists from the Technion-Israel Institute of Technology in Haifa have transformed skin tissue into beating heart cells, forging a path for further research into more effective post-heart attack therapy options.

The breakthrough may eventually pose as a solution for patients with severe organ damage by eliminating the risk of rejection by the body’s own immune system. For now, the cells have not been returned to patients, though they are healthy and beat in tandem with those of other heart cells in lab rats.

“We have shown that it’s possible to take skin cells from an elderly patient with advanced heart failure and end up with his own beating cells in a laboratory dish that are healthy and young- the equivalent to the stage his heart cells were in when he was just born,” explained Lior Gepstein, a cardiologist working on the project.

The original theory was suggested back in 2007 by two separate teams of scientists; Shinya Yamanaka in Japan and James Thomson in the U.S. Both researchers discovered ‘pluripotency’ genes that could apparently bring older cells back to a much younger developmental stage.

In the Israeli study, the scientists took skin cells from two heart attack survivors over the age of 50. With the help of three pluripotency genes, they brought them back to an immature stage, and then grew them into brand new heart muscle tissue.
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“What was interesting was the cells could integrate with the rat tissue and contract in synchrony,” Gepstein said once the cells were injected and accepted by the rats’ hearts. “If you put the cells in and they beat with a completely different timing, you wouldn’t see any improvement in heart function and may even cause a dangerous arrhythmia.”

A consultant cardiologist at Edinburgh University, Nicholas Mills, said: “More people are surviving following a heart attack than ever before and therefore the number of people living with a damaged heart and heart failure is increasing. Unfortunately, the body has only very limited capacity to repair the heart following a heart attack, There is therefore an urgent need to develop effective and safe treatments to regenerate the heart.”

He added, “this technology needs to be refined before it can be used for the treatment of patients with heart failure, but these findings are encouraging and take us a step closer to our goal of identifying an effective means of repairing the heart and limiting the consequences of heart failure.”

Certain Orangutans Able to Control Their Sexual Maturation

In a fascinating scientific discovery, researchers have found that the orangutans of Sumatra in the Indonesian islands have found a way to hold off their sexual maturity for up to ten years.  This delayed development allows them to mature only as they are old enough and strong enough to fight off stronger males.  As far as researchers can tell, no other primate species, even the orangutans’ cousins in nearby Borneo, are able to do so.

Gauri Pradha, a University of South Florida researcher, found with her team that these orangutans can hold off the growth of their secondary sexual features for as long as ten years. Typically, male orangutans are able to reproduce at 15, but they won’t attract female attention until they have their secondary sexual characteristics which include cheek flanges and increased muscle.

What the researchers found to be truly amazing was that the sexual development of the secondary traits was delayed only in orangutan groups where a few dominant males controlled all of the females.  Such arrested development wasn’t documented for groups of orangutans in Bornean where male orangutans didn’t monopolize individual females.

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In the troops in Sumatra, the orangutans would delay their development until they had enough strength to depose the dominant males – then they would quickly reach sexual maturity.

Researchers still do not know how they are able to control their sexual maturation and whether or not they do so consciously.

Circus Computer Game Helps Stroke Victims

A new computer game, Circus Challenge, just might help stroke patients to do more than enjoy the circus.  Newcastle University neuroscientists in England have created the interactive games where players work to master the skills necessary in a circus.  While enjoying themselves at the games, users don’t realize that they are actually using specific hand, arm and wrist movements that help patients to regain control of limbs that have been weakened from a stroke.

Janet Eyre, a professor of pediatric neuroscience, is hoping that the games can help with patient rehabilitation when used consistently at home. As Professor Eyre explained, “The brain can re-learn control of the weak arm but this needs frequent therapy over many months and there are not enough therapists to provide this on a one-to-one basis. Patients need to be able to use both their arms and hands for most every day activities such as doing up a zip, making a bed, tying shoe laces, unscrewing a jar. With our video game, people get engrossed in the competition and action of the circus characters and forget that the purpose of the game is for therapy.”

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The first of the games, paid for by the Health Innovation Challenge Fund, could be on sale early next year. Certainly, those who created the games hope that they can create similar models for cerebral palsy sufferers, for dementia and more.

Dr. Peter Coleman, of the Stroke Association, explained that the medical cuts have decreased the amount of physiotherapy that patients can receive. Video games of this sort can be used in tandem with physiotherapy to help patients. He warned, however, that “It’s important that they do not replace physiotherapists but instead support the vital work they do.”

Amphibious Sports Car Launched to Compete with Record Speeds

The idea of a car that can function both on land and in the water is not a new one, but the challenge of making it a reality is an ongoing one.

Car enthusiast Marc Witt believes that he has finally accomplished this feat, having created the a vehicle that can travel at 125 mph on land, and keep up a respectable pace while sailing on water as well. Naming it the ‘Sea Lion’, Witt is putting the car up for sale for $259,500.

The car was built by Witt himself, using a 174hp Mazda rotary engine, brushed aluminum and stainless steel. It is sturdy, strong and waterproof, and even features small storage compartments for travel as well.

Witt began building the car in 2006, with hopes of breaking the water-speed record for amphibious cars. At the time, the record was set at 45mph. Now, the record has reached 6-mph, and Witt’s car sits at the top alongside 25 others.

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Witt believes that with an engine upgrade, his car will break the record both on land and on water.

Witt wrote: “Building Sea Lion has been an enjoyable exploration. I have provided the basic architecture for the car and resolved every conflicting interaction between Car and Boat. The next chapter of this project is to provide an ultimate engine and begin speed trials. There are many highly qualified rotary engine builders who have decades of experience making reliable high performance improvements. It is best to bring a specialist builder on board for the rest of this endeavor and bring the car up to its full potential. I am willing to continue working with a buyer on all future modifications. I will remain available as a consultant, engineer, machinist and psychiatrist for whoever decides to venture further into the amphibious record books.”