Having established their technique, it will now be much easier to investigate hybrid catalysts for many applications.
A new type of stem cell can not only become any cell in the human body, but can also support the growth of an entire embryo.
Speaking at the TED conference, Siri co-founder and Apple AI expert Tom Gruber declared that artificial intelligence should be used less to replace humans, and more to enhance aspects of humanity that are unreliable or fail with time, like memory.
Why do most patients fail to respond to the newest cures?
As Cassini wraps up its 13-year mission in Saturn's system, scientists are preparing for the spacecraft's final burst of observations in the never-before-explored region between the planet and its inner rings.
Tesla CEO Elon Musk said his latest company Neuralink is working to link the human brain with a machine by creating micron-sized devices.
Life begins with a bang.
(Phys.org)-For the first time, physicists have experimentally demonstrated the violation of “bilocal causality”-a concept that is related to the more standard local causality, except that it accounts for the precise way in which physical systems are initially generated. The results show that it’s possible to violate local causality in an entirely new and more general way, which could lead to a potential new resource for quantum technologies.
Media Lab director Joi Ito’s closing remarks at the March for Science in Boston on April 22, 2017.
George Church is on the TIME 100 2017 list. Stephen Colbert wrote about the scientist.
Instead of fearing AI, we should use it to extend our lives.
A team of scientists at the Tata Institute of Fundamental Research (TIFR), Mumbai, India, have found new ways to detect a bare or naked singularity, the most extreme object in the universe.When the fuel of a very massive star is spent, it collapses due to its own gravitational pull and eventually becomes a very small region of arbitrarily high matter density, that is a ‘Singularity’, where the usual laws of physics may breakdown. If this singularity is hidden within an event horizon, which is an invisible closed surface from which nothing, not even light, can escape, then we call this object a black hole. In such a case, we cannot see the singularity and we do not need to bother about its effects. But what if the event horizon does not form? In fact, Einstein’s theory of general relativity does predict such a possibility when massive stars collapse at the end of their life-cycles. In this case, we are left with the tantalizing option of observing a naked singularity.$$!ad_code_content_spilt_video_ad!$$An important question then is, how to observationally distinguish a naked singularity from a black hole. Einstein’s theory predicts an interesting effect: the fabric of spacetime in the vicinity of any rotating object gets ‘twisted’ due to this rotation. This effect causes a gyroscope spin and makes orbits of particles around these astrophysical objects precess. The TIFR team has recently argued that the rate at which a gyroscope precesses (the precession frequency), when placed around a rotating black hole or a naked singularity, could be used to identify this rotating object. Here is a simple way to describe their results. If an astronaut records a gyroscope’s precession frequency at two fixed points close to the rotating object, then two possibilities can be seen: (1) the precession frequency of the gyroscope changes by an arbitrarily large amount, that is, there is a wild change in the behaviour of the gyroscope; and (2) the precession frequency changes by a small amount, in a regular well-behaved manner. For the case (1), the rotating object is a black hole, while for the case (2), it is a naked singularity.
The TIFR team, namely, Dr. Chandrachur Chakraborty, Mr. Prashant Kocherlakota, Prof. Sudip Bhattacharyya and Prof. Pankaj Joshi, in collaboration with a Polish team comprising Dr. Mandar Patil and Prof. Andrzej Krolak, has in fact shown that the precession frequency of a gyroscope orbiting a black hole or a naked singularity is sensitive to the presence of an event horizon. A gyroscope circling and approaching the event horizon of a black hole from any direction behaves increasingly ‘wildly,’ that is, it precesses increasingly faster, without a bound. But, in the case of a naked singularity, the precession frequency becomes arbitrarily large only in the equatorial plane, but being regular in all other planes.$$!ad_code_content_spilt_video_ad2!$$The TIFR team has also found that the precession of orbits of matter falling into a rotating black hole or a naked singularity can be used to distinguish these exotic objects. This is because the orbital plane precession frequency increases as the matter approaches a rotating black hole, but this frequency can decrease and even become zero for a rotating naked singularity. This finding could be used to distinguish a naked singularity from a black hole in reality, because the precession frequencies could be measured in X-ray wavelengths, as the infalling matter radiates X-rays.Provided by: Tata Institute of Fundamental ResearchJournal reference: Physical Review D – Chandrachur Chakraborty et al, Spin precession in a black hole and naked singularity spacetimes
Brown biologists have developed a new system, described in Nature Genetics, that identified and tracked hundreds of genetic variations that alter the way DNA is spliced when cells make proteins, often leading to disease.
A certain cytokine can control whether immune cells promote or suppress inflammatory bowel disease, a finding that could lead to new treatments.
Number crunching for magnet making.
British cybersecurity firm Darktrace explained to CNBC why companies should invest in artificial intelligence to secure their networks.
To create more immersive worlds, VR makers are turning to the same kinds of chips powering the artificial intelligence explosion.
With Deloitte, the Hong Kong Monetary Authority and the regionâs top five banks launched a blockchain platform for trade finance.
5,363 Followers, 355 Following, 667 Posts – See Instagram photos and videos from Richard Nakamura (@darkrai283)
Yasuo Kuniyoshi is a man with an extraordinary plan. Kuniyoshi, a professor at the University of Tokyo’s Graduate School of Information Science and Technol
Eventually, if it takes off, orbital fabrication could revolutionize the way we make things. Read on:
The acorn worm, an invertebrate, has an incredible ability to regenerate. By studying its abilities, humans could access our own latent regeneration.
Quais sÃ£o os limites da tecnologia humana? E podemos de alguma maneira evitÃ¡-los? Aqui Ã© que os computadores quÃ¢nticos se tornam muito interessantes. Veja o …
Companies and composers have begun using software to make music customized to your brainwaves. Soon you will be able to plug in your headphones, lean back in your chair, and relax to a playlist so synchronized with your brain’s chemistry that it increases your productivity, sleep quality, and even fights anxiety. The frequency at which…
Some scientists are thinking about what human space travelers will look like in the future. They might be extra-small and radiation-proof.
Modern science is bringing us ever closer to a day when aging is no longer a concern. However, with our increasing life-spans come challenges and questions we must be prepared to face.
We are in the midst of a true inflection point in computing, and the very way we interface with technology daily is changing.
Sundrop farms are reinventing agriculture through a mix of solar power and hydroponic technology
Head to Silicon Valley.
To find out whether quantum computers will work properly, scientists must simulate them on a classical computer. Now a record-breaking experiment has simulated the largest quantum computer yet.