Toggle light / dark theme

Old post,but interesting…


If the holographic principle does indeed describe our universe, it could help resolve many inconsistencies between relativistic physics and quantum physics, including the black hole information paradox. It would also offer researchers a way to solve some very tough quantum problems using relatively simple gravitational equations. But before we can be sure that we’re living in the Matrix, there’s still a lot of work to be done.

“We did this calculation using 3D gravitational theory and 2D quantum field theory, but the universe actually has three spatial dimensions plus time,” Grumiller said. “A next step is to generalize these considerations to include one higher dimension. There are also many other quantities that should correspond between gravitational theory and quantum field theory, and examining these correspondences is ongoing work.”

Beyond the theoretical considerations, there’s the entirely different matter of pulling back the illusion and experimentally observing the holographic nature of reality. As it happens, physicists at the Department of Energy’s Fermilab are now trying to do just that.

Read more

Check out the Ghost’s new 3rd Axis with Follow mode in the video: http://www.youtube.com/watch?v=v3HC9WAG5AA&feature=share&list=UUAvyPv6yvVl082cMLxEuD_g

The Ghost is a robotic camera stabilizer designed for DSLR’s, micro 4/3rds, blackmagic, and smaller video cameras.

Produced by Spaulding International Cinema.
More info visit: www.sicvisuals.com

Read more

For some people the idea of being operated on by a robot might sound horrifying, particularly if there isn’t even a doctor in the room to check that everything is running smoothly. Surgery is in any case a risky business that few would undertake willingly if it wasn’t absolutely necessary, and it seems unlikely that the spectacle of an enormous machine with mechanical arms attached to surgical scalpels would reassure anyone about having to undergo an operation. However, the use of robotic surgery has spread rapidly in recent years and for some types of operations it is becoming the standard. While there is a lot of controversy surrounding the topic, many doctors see surgical robots as a vital tool to provide better medical care and lower the risks associated with surgery.

History of robotic surgery

The roots of robotic surgery go back to the mid-1980s, when a robotic surgical arm was first used to perform a neurosurgical biopsy. Two years later, the first robot-assisted laparoscopic (i.e. keyhole) operation was conducted, a cholecystectomy. The following years saw continued advances in the area of robotic surgery, which was used for a growing range of surgical procedures. One of the earliest robotic surgical systems to enter into general use was the ROBODOC system, which came on the market in the early 1990s and allowed surgeons conducting hip replacements to mill the femur with more precision that would have been conventionally possible.

Read more

Entanglement is one of the strangest phenomena predicted by quantum mechanics, the theory that underlies most of modern physics. It says that two particles can be so inextricably connected that the state of one particle can instantly influence the state of the other, no matter how far apart they are.

Just one century ago, was at the center of intense theoretical debate, leaving scientists like Albert Einstein baffled. Today, however, entanglement is accepted as a fact of nature and is actively being explored as a resource for future technologies including quantum computers, quantum communication networks, and high-precision quantum sensors.

Entanglement is also one of nature’s most elusive phenomena. Producing entanglement between particles requires that they start out in a highly ordered state, which is disfavored by thermodynamics, the process that governs the interactions between heat and other forms of energy. This poses a particularly formidable challenge when trying to realize entanglement at the macroscopic scale, among huge numbers of particles.

Read more

Today’s particle accelerators are massive machines, but physicists have been working on shrinking them down to tabletop scales for years. The Gordon and Betty Moore Foundation just awarded a $13.5 million grant to Stanford University to develop a working “accelerator on a chip” the size of a shoebox over the next five years.

The international collaboration will build on prior experiments by physicists at SLAC/Stanford and Germany’s Friedrich-Alexander University in Erlangen-Nuremberg. If successful, the prototype could usher in a new generation of compact particle accelerators that could fit on a laboratory bench, with potential applications in medical therapies, x-ray imaging, and even security scanner technologies.

The idea is to “do for particle accelerators what the microchip industry did for computers,” SLAC National Accelerator Laboratory physicist Joel England told Gizmodo. Computers used to fill entire rooms back when they relied on bulky vacuum tube technology. The invention of the transistor and subsequent development of the microchip made it possible to shrink computers down to laptop and cell phone scales. England envisions a day when we might be able to build a handheld particle accelerator, although “there’d be radiation issues, so you probably wouldn’t want to hold one in your hand.”

Read more

In the near future, car buyers may find themselves putting on Microsoft’s HoloLens augmented reality headset in order to check out a Volvo in a kind of virtual showroom. The car manufacturer has announced a partnership with Microsoft to incorporate the HoloLens into the car buying experience. The concept they debuted today images a customer and car dealer putting on the headset and interacting with a holographic car.

The HoloLens would allow users to do the typical things one would expect when shopping for a car, like comparing colors and wheel rims, as well as much more, like inspecting a projection of the engine from any angle, getting a view of what it’s like to sit inside, or experience demonstrations of a car’s unique features.

Read more