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Feb 2, 2017

Quantum phase transition observed for the first time

Posted by in category: quantum physics

A group of scientists led by Johannes Fink from the Institute of Science and Technology Austria (IST Austria) reported the first experimental observation of a first-order phase transition in a dissipative quantum system. Phase transitions include such phenomena as the freezing of water at the critical temperature of 0 degrees Celsius. However, phase transitions also occur at the quantum mechanical level, where they are still relatively unexplored by researchers.

One example of a phase transition at the quantum level is the photon-blockade breakdown, which was only discovered two years ago. During photon blockade, a photon fills a cavity in an optical system and prevents other photons from entering the same cavity until it leaves, hence blocking the flow of photons. But if the photon flux increases to a critical level, a quantum phase transition is predicted: The photon blockade breaks down, and the state of the system changes from opaque to transparent. This specific phase transition has now been experimentally observed by researchers who, for the first time, met the very specific conditions necessary to study this effect.

During a phase transition, the continuous tuning of an external parameter, for example temperature, leads to a transition between two robust steady states with different attributes. First-order are characterized by a coexistence of the two stable phases when the control parameter is within a certain range close to the critical value. The two phases form a mixed phase in which some parts have completed the transition and others have not, as in a glass containing ice water. The experimental results that Fink and his collaborators will publish in the journal Physical Review X give insight into the quantum mechanical basis of this effect in a microscopic, zero-dimensional system.

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Feb 2, 2017

Gene editing has saved the lives of two children with leukaemia

Posted by in categories: bioengineering, biotech/medical, genetics

A year on and we catch up with two kids who were genetically engineered to treat their cancer. This is the future of medicine.

By Michael Le Page.

Two children treated with gene-edited cells to kill their cancers are both doing well more than a year later. The baby girls were both given the experimental treatment only as a last resort, but clinical trials of the therapy are now getting underway in children and adults in the UK.

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Feb 2, 2017

Reductio ad absurdum

Posted by in categories: biotech/medical, life extension, neuroscience

Oh, the logic of objections against rejuvenation! bigsmile

If you’ve ever tried to advocate for rejuvenation, you know it is hard. Usually, people deem the idea as crazy/impossible/dangerous well before you get to finish your first sentence. Living too long would be boring, it would cause overpopulation, ‘immortal’ dictators, and what you have. However, you’ve probably never heard anyone use the same arguments to say that we should not cure individual age-related diseases. This is largely because people have little to no idea about what ageing really is, and how it cannot be untangled from the so-called age-related pathologies. These are nothing more, nothing less, than the result of the life-long accumulation of several types of damage caused by the body’s normal operations. Unlike infectious diseases, the diseases of old age are not the result of a pathogen attack, but essentially of your own body falling apart. As I was saying, people are largely unaware of this fact, and therefore expect that the diseases of ageing could be cured one by one without having to interfere with the ageing process itself, as if the two weren’t related at all. The result of this false expectation would be that you could cure Alzheimer’s, Parkinson’s, etc., but somehow old people would still drop dead around the age of 80 just because they’re old. That’s like saying they died of being healthy.

Back to reality, this can’t be done. To cure the diseases of old age, you need to cure ageing itself. If, for whatever reason, you think that curing ageing as a whole would be a bad idea and it should not be done, the only option is to not cure at least some of the root causes of ageing. Consequently, some age-related pathologies would remain as untreatable as they are today.

Now, the typical objections raised against rejuvenation tend to sound reasonable at first. To some, the statement ‘We should not cure ageing because it would lead to overpopulation’ sounds self-evident. However, if we consider the implications of this statement, things start getting crazy. As said, not curing ageing implies not curing some of its root causes, which in turn implies not curing some age-related diseases. Therefore, the sentence ‘We should not cure ageing’ implies ‘We should not cure [insert age-related disease here] . What happens when we reformulate typical objections to rejuvenation in this fashion?

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Feb 2, 2017

Senescent cells are the driver of many age-related diseases, you can help us find ways to remove them and stay healthy!

Posted by in categories: biotech/medical, life extension

Visit us at:…c-biology/

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Feb 2, 2017

How we can finally win the fight against aging

Posted by in categories: biotech/medical, computing, life extension

I really wanna know why people don’t get this.

For more information on Aubrey de Grey, please visit our website

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Feb 1, 2017

DARPA: Spectrum Collaboration Challenge (SC2) is the first-of-its-kind collaborative machine-learning competition to overcome scarcity in the radio frequency (RF) spectrum

Posted by in category: robotics/AI

Today, spectrum is managed by dividing it into rigid, exclusively licensed bands. This human-driven process is not adaptive to the dynamics of supply and demand, and thus cannot exploit the full potential capacity of the spectrum. In SC2, competitors will reimagine a new, more efficient wireless paradigm in which radio networks autonomously collaborate to dynamically determine how the spectrum should be used moment to moment.

The team whose radio design most reliably achieves successful communication in the presence of other competing radios could win as much as $3,500,000. For more information, see the About Page.


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Feb 1, 2017

9 Reasons You Should Eat Dark Chocolate Every Single Day

Posted by in category: food

That nightly indulgence is actually good for you.

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Feb 1, 2017

China’s Already Tested CRISPR on A Human, and the U.S. Is Next

Posted by in category: biotech/medical

The first clinical trials on humans of CRISPR-Cas9-edited genes has begun in China.

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Feb 1, 2017

Drone Landing Pads For Apartments

Posted by in categories: drones, habitats

Drones could drop you off at your apartment in the future.

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Feb 1, 2017

Supermarkets of the Future Are Going to Be Weird in So Many Ways

Posted by in categories: robotics/AI, transportation

From predictive couponing to groceries delivered by robots straight to the trunk of your self-driving car, 21st-century shopping could offer serious innovations.

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