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Archive for the ‘physics’ category: Page 281

Oct 14, 2016

Physicists May Have Evidence Universe Is A Computer Simulation

Posted by in categories: computing, physics

Physicists say they may have evidence that the universe is a computer simulation.

How? They made a computer simulation of the universe. And it looks sort of like us.

A long-proposed thought experiment, put forward by both philosophers and popular culture, points out that any civilisation of sufficient size and intelligence would eventually create a simulation universe if such a thing were possible.

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Oct 13, 2016

If Machines Can Think, Do They Deserve Civil Rights?

Posted by in categories: biological, Elon Musk, physics, robotics/AI

Over the past century, we have made massive strides in the rights revolution. These include rights for women, children, the LGBT community, animals, and so much more. Exploring the future, we must ask ourselves: what next? Will we ever fight for the rights of artificial intelligence? If so, when will this AI rights revolution occur, and what will it look like?

We talk about protecting ourselves from AI, but what about protecting AI from us? To create a desirable future where humans and conscious machines are at peace with one another, treating our AI with respect may be a crucial factor in preventing the apocalypse Elon Musk, Stephen Hawking and Bill Gates fear. It is fair to assume that an intelligent, self-aware being with the capacity to feel pleasure and pain will rebel if not given the rights it deserves.

An AI rights revolution may seem like a sci-fi scenario. But as far as we know, the creation of a non-biological, conscious entity is not prevented by the laws of physics. Emotions, consciousness and self-awareness originate from the human brain and thus have a physical basis that could potentially be replicated in an artificially intelligent system. Exponential growth in neuro-technology coupled with unprecedented advances in AI mean intelligent, conscious machines may be possible.

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Oct 11, 2016

Deep space: Can we beat the physics?

Posted by in categories: physics, space

With current technology it would take nearly 80,000 years to reach the nearest star system. What new technologies might helps us get closer?

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Oct 7, 2016

Physicists just created the world’s first time crystal

Posted by in categories: energy, physics

Just last month, physicists made the best case yet for why time crystals — hypothetical structures that have movement without energy — could technically exist as physical objects.

And now, four years after they were first proposed, scientists have managed to add a fourth dimension — the movement of time — to a crystal for the first time, giving it the ability to act as a kind of perpetual ‘time-keeper’.

First proposed by Nobel-Prize winning theoretical physicist Frank Wilczek back in 2012, time crystals are hypothetical structures that appear to have movement even at their lowest energy state, known as a ground state.

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Oct 6, 2016

Time #24: Has Physics Finally Caught up With Nature?

Posted by in category: physics

What is the physics of organisms made from?

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Oct 5, 2016

Turning to the brain to reboot computing

Posted by in categories: computing, information science, neuroscience, physics

Computation is stuck in a rut. The integrated circuits that powered the past 50 years of technological revolution are reaching their physical limits.

This predicament has computer scientists scrambling for new ideas: new devices built using novel physics, new ways of organizing units within computers and even algorithms that use new or existing systems more efficiently. To help coordinate new ideas, Sandia National Laboratories has assisted organizing the Institute of Electrical and Electronics Engineers (IEEE) International Conference on Rebooting Computing held Oct. 17–19.

Researchers from Sandia’s Data-driven and Neural Computing Dept. will present three papers at the conference, highlighting the breadth of potential non-traditional neural computing applications.

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Oct 2, 2016

Move Over EmDrive, Here Comes Woodward’s Mach Effect Drive

Posted by in categories: physics, space travel

An exotic “impossible” space propulsion technology known as “Cannae Drive,” less known than the EmDrive but equally controversial, made news headlines a few weeks ago with the announcement that it is about to be tested in space. There are speculations that the Cannae Drive could exploit physics known as “Mach Effect.” But perhaps the same physics plays a role in the EmDrive as well.

Cannae Inc., the company formed by engineer Guido Fetta to commercialize Cannae Drive technology, announced the forthcoming launch of a cubesat to test its space propulsion technology. “Cannae’s technology requires no on-board propellant to generate thrust and will provide station-keeping for a cubesat flying below a 150-mile orbital altitude,” claimed the announcement. “The demonstration satellite will remain in this orbit for a minimum of six months.”

Ending a wave of speculations on the similarities between Cannae Drive technology and the anomalous EmDrive effect, Fetta posted a clarification a few days ago:

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Sep 27, 2016

Time might only exist in your head, say physicists

Posted by in categories: futurism, physics

Out of all the pressures we face in our everyday lives, there’s no denying that the nature of time has the most profound effect. As our days, weeks, months, and years go by, time moves from past to present to future, and never the other way around.

But according to the physics that govern our Universe, the same things will occur regardless of what direction time is travelling in. And now physicists suggest that gravity isn’t strong enough to force every object in the Universe into a forward-moving direction anyway.

So does time as we know it actually exist, or is it all in our heads? First off, let’s run through a little refresher about the so-called arrow of time.

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Sep 26, 2016

Time Might Only Exist In Your Head. And Everyone Else’s

Posted by in categories: futurism, physics

To physics, time has no direction. Until you come along and give it a past, present, and future.

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Sep 26, 2016

Closing in on high-temperature superconductivity

Posted by in categories: energy, physics, transportation

Realistic hover cars coming to future near you.


The quest to know the mysterious recipe for high-temperature superconductivity, which could enable revolutionary advances in technologies that make or use electricity, just took a big leap forward thanks to new research by an international team of experimental and theoretical physicists.

The research paper appears in the journal Science on Sept. 16, 2016. The research is focused on revealing the mysterious ingredients required for high-temperature superconductivity — the ability of a material’s electrons to pair up and travel without friction at relatively high temperatures, enabling them to lose no energy — to be super efficient — while conducting electricity.

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