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Mar 5, 2019

Researchers harness mysterious Casimir force for tiny devices

Posted by in categories: computing, quantum physics

Circa 2017


Getting something from nothing sounds like a good deal, so for years scientists have been trying to exploit the tiny amount of energy that arises when objects are brought very close together. It’s a source of energy so obscure it was once derided as a fanciful source of “perpetual motion.” Now, a research team including Princeton scientists has found a way to harness a mysterious force of repulsion, which is one aspect of that force.

This energy, predicted seven decades ago by the Dutch scientist Hendrik Casimir, arises from quantum effects and can be seen experimentally by placing two opposing plates very close to each other in a vacuum. At close range, the plates repel each other, which could be useful to certain technologies. Until recently, however, harnessing this “Casimir force” to do anything useful seemed impossible.

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Mar 5, 2019

Researchers Are Training AI to Survive In This MMO

Posted by in category: robotics/AI

In OpenAI’s ‘Neural MMO,’ artificially intelligent agents compete to survive, and learn new skills along the way.

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Mar 5, 2019

Spiders go ballooning on electric fields

Posted by in category: futurism

Circa 2018


Scientists have attributed the flying behaviour of these wingless arthropods to ‘ballooning’, where spiders can be carried thousands of miles by releasing trails of silk that propel them up and out on the wind.

However, the fact that ballooning has been observed when there is no wind to speak of, when skies are overcast and even in rainy conditions, raises the question: how do spiders take off with low levels of aerodynamic drag?

Biologists from the University of Bristol believe they have found the answer.

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Mar 5, 2019

The people in Russia buying ‘immortality’

Posted by in categories: life extension, neuroscience

After Anton Zeldin’s wife was involved in a fatal car accident, he chose to have her brain frozen with the hope that she can one day be brought back to life. Video Journalist: Irina Sedunova.

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Mar 5, 2019

China announces the mass production of solid-state batteries

Posted by in category: futurism

Although there are still hurdles for the production of the successor to the lithium-ion batteries according to experts, a Chinese start-up has allegedly succeeded in producing solid-state batteries.

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Mar 5, 2019

Generating cross-modal sensory data for robotic visual-tactile perception

Posted by in category: robotics/AI

Perceiving an object only visually (e.g. on a screen) or only by touching it, can sometimes limit what we are able to infer about it. Human beings, however, have the innate ability to integrate visual and tactile stimuli, leveraging whatever sensory data is available to complete their daily tasks.

Researchers at the University of Liverpool have recently proposed a new framework to generate cross-modal , which could help to replicate both visual and in situations in which one of the two is not directly accessible. Their framework could, for instance, allow people to perceive objects on a screen (e.g. clothing items on e-commerce sites) both visually and tactually.

“In our daily experience, we can cognitively create a visualization of an object based on a tactile response, or a tactile response from viewing a surface’s texture,” Dr. Shan Luo, one of the researchers who carried out the study, told TechXplore. “This perceptual phenomenon, called synesthesia, in which the stimulation of one sense causes an involuntary reaction in one or more of the other senses, can be employed to make up an inaccessible sense. For instance, when one grasps an object, our vision will be obstructed by the hand, but a touch response will be generated to ‘see’ the corresponding features.”

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Mar 5, 2019

First scalable graphene yarns for wearable textiles produced

Posted by in categories: particle physics, wearables

A team of researchers led by Dr. Nazmul Karim and Prof Sir Kostya Novoselov at The University of Manchester have developed a method to produce scalable graphene-based yarn.

Multi-functional wearable e-textiles have been a focus of much attention due to their great potential for healthcare, sportswear, fitness and aerospace applications.

Graphene has been considered a potentially good material for these types of applications due to its high conductivity, and flexibility. Every atom in is exposed to its environment allowing it to sense changes in its surroundings, making it an ideal material for sensors.

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Mar 5, 2019

Chemists find method to replace hydrogen with fluorine in organic molecules

Posted by in category: biotech/medical

Fluorocarbon based life? Could be possible. Wonder where this will go.

Chemists have now reported a facile method for the replacement of hydrogen with fluorine in important drug molecules. This new discovery enables the fine-tuning of existing (and potential new) pharmaceuticals to endow them with improved pharmacological properties.

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Mar 5, 2019

Doctors Say They’ve Permanently Cured a Patient’s HIV

Posted by in categories: biotech/medical, genetics

The reported cure could lead to a gene-editing treatment for H.I.V.

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Mar 5, 2019

The force is with us, always? Tuning quantum vacuum forces from attractive to repulsive

Posted by in categories: quantum physics, weapons

The force is strong not only in Star Wars lore but also as a fundamental property in physics. For example, scientists can put two uncharged metal plates close together in a vacuum, and “voila!” —-they will attract each other like Luke Skywalker and his trusted lightsaber.

In 1948, Dutch theoretical physicist Hendrick Casimir first predicted an attractive force responsible for this effect—later dubbed the Casimir effect. A half-century later, in 1996, the Casimir force was experimentally measured for the first time by Steve Lamoreaux at Los Alamos National Laboratory.

But just like the light and dark side of the force in Star Wars, scientists have wondered, can there be an equal yet opposite kind of Casimir force?

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