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Sep 25, 2016
Marshall McLuhan full lecture: The medium is the message — 1977
Posted by Odette Bohr Dienel in categories: media & arts, theory
Sep 25, 2016
Our Simulated Universe Is Just One Piece of a Matryoshka Doll of Annihilation
Posted by Andreas Matt in category: computing
Perhaps a posthuman civilization running simulations self-destructs, or a lab assistant accidentally spills coffee on computer hardware. Simulations can collapse.
Sep 25, 2016
What if spacetime were a kind of fluid?
Posted by Andreas Matt in categories: particle physics, quantum physics
This is the question tackled by theoretical physicists working on quantum gravity by creating models attempting to reconcile gravity and quantum mechanics.
Some of these models predict that spacetime at the Planck scale (10^-33cm) is no longer continuous — as held by classical physics — but discrete in nature.
Just like the solids or fluids we come into contact with every day, which can be seen as made up of atoms and molecules when observed at sufficient resolution. A structure of this kind generally implies, at very high energies, violations of Einstein’s special relativity (a integral part of general relativity).
Sep 25, 2016
Paralysed patient walks again thanks to virtual reality and brain-computer interfaces
Posted by Roman Mednitzer in categories: biotech/medical, computing, cyborgs, neuroscience, virtual reality
In an astonishing breakthrough, patients left paralysed by severe spinal cord injuries have recovered the ability to move their legs after training with an exoskeleton linked to their brain – with one even able to walk using two crutches.
Scientists developed the Walk Again Project, based in Sao Paulo, Brazil, thinking that they could enable paraplegics to move about using the exoskeleton controlled by their thoughts. But they were surprised to discover that during the training, the eight patients all started to regain the sense of touch and movement below the injury to their spine. It was previously thought that the nerves in seven of the patients’ spines had been completely severed.
But the researchers now believe that a few nerves survived and these were reactivated by the training, which may have rewired circuits in the brain. Writing in the journal Scientific Reports, they said: “While patient one was initially not even able to stand using braces when placed in an orthostatic posture, after 10 months of training the same patient became capable of walking using a walker, braces and the assistance of one therapist. “At this stage, this patient became capable of producing voluntary leg movements mimicking walking, while suspended overground.
Sep 24, 2016
Scientists just demonstrated internet speeds 1,000 times faster than Google Fibre
Posted by Dan Kummer in category: internet
Scientists in Germany have achieved internet speeds averaging a sustained 1 terabit per second (1 Tbps) on an optical fibre network.
At that speed, you’re getting a data transmission rate that’s a whopping 1,000 times faster than services like Google Fibre, which delivers 1 gigabit per second (1 Gbps).
While Google Fibre’s 1 Gbps itself might be considered sufficiently drool-worthy for those of us constrained to the even slower speeds of ADSL and cable, it can’t hope to compete to the almost ludicrously fast possibilities of an internet connection that’s 1,000 times faster, delivering 1 terabit per second.
Sep 24, 2016
Decisions Are Emotional, Not Logical: The Neuroscience behind Decision Making
Posted by Shailesh Prasad in category: neuroscience
Think of a situation where you had bulletproof facts, reason, and logic on your side, and believed there was absolutely no way the other person could say no to your perfectly constructed argument and proposal. To do so would be impossible, you figured, because there was no other logical solution or answer.
And then the other person dug in his heels and refused to budge. He wasn’t swayed by your logic. Were you flabbergasted?
This is similar to what many negotiators do when they sit down at the table to hammer out a deal. They come armed with facts, and they attempt to use logic to sway the other party. They figure that by piling on the data and using reason to explain their side of the situation, they can construct a solution that is simply irrefutable—and get the other party to say yes.
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Sep 24, 2016
BOLDLY GO: Elon Musk Wants To Be Captain Kirk and YOU Should Foot the Bill
Posted by Karen Hurst in category: Elon Musk
Not my money.
Recent events can make one wonder if ELON MUSK is Playing Out a ‘Star Trek’ Fantasy on the Tax-Payers’ Dime?
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