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first_img(PhysOrg.com) — Way back in the 1930’s, Albert Einstein and Niels Bohr were sparring over ideas related to whether the new field of quantum mechanics was correct. In one thought experiment that Einstein said showed that quantum mechanics was inconsistent, he said the Heisenberg principal could be shown to be inconsistent by imagining a box of photons that could be measured both time-wise and energy-wise at the same time. Bohr knocked down Einstein’s arguments and in the process elevated his stature among their peers. Now, however, Hrvoje Nikoli at the Rudjer Boskovic Institute in Croatia says that Einstein could have won that argument had he used the argument he gave Bohr just five years later in trying to explain how entanglement made quantum mechanics inconsistent. Nikoli has published his reasoning on the preprint server arXiv. © 2011 PhysOrg.com New light shed on old dispute between Einstein and Bohr Explore further In the first thought experiment presented by Einstein, he proposed that if the lid were opened on a box full of photons allowing just one to escape, it could be measured time-wise by simply measuring how long the box was open. He then said it could be simultaneously measured energy-wise by measuring the change in the total amount of energy in the box. This he said disproved the Heisenberg principle which meant quantum mechanics was inconsistent. After some thought, Bohr replied that if Einstein’s own theory of relativity were brought into the experiment, the apparent inconsistency could be explained away by noting that the measurement took place in a gravitational field, thus, the measurement of the time that the lid was open on the box would depend on it’s position. Einstein was unable to counter Bohr’s argument and lost that round.Five years later, the two were at it again. This time Einstein said that there was no way quantum mechanics could include both entanglement and the belief that nothing could travel faster than the speed of light. If causing a change to one particle instantly caused a change in the other, how could it do so without violating such a basic principle? He called the whole thing “spooky action at a distance.” Bohr was unable to come up with a reasonable argument in response. And neither has anyone else for that matter, though John Bell made it more palatable in 1964 by declaring entanglement a wholly new kind of phenomenon, which he dubbed “nonlocal.”This is where Nikoli comes in. He says that had Einstein put forth his arguments regarding entanglement five years earlier during their debate about the Heisenberg principle, he could have won by suggesting that the photon escaping from the box was entangled with the box itself, thus quashing any possible response from Bohr. But alas, that was not to be, Einstein didn’t think of that and thus, Bohr went on to win that first round, one of just a few such occurrences in Einstein’s illustrious career.center_img More information: EPR before EPR: a 1930 Einstein-Bohr thought experiment revisited, arXiv:1203.1139v1 [quant-ph] arxiv.org/abs/1203.1139In 1930 Einstein argued against consistency of the time-energy uncertainty relation by discussing a thought experiment involving a measurement of mass of the box which emitted a photon. Bohr seemingly triumphed over Einstein by arguing that the Einstein’s own general theory of relativity saves the consistency of quantum mechanics. We revisit this thought experiment from a modern point of view and find that neither Einstein nor Bohr was right. Instead, this thought experiment should be thought of as an early example of a system demonstrating nonlocal “EPR” quantum correlations, five years before the famous Einstein-Podolsky-Rosen paper.via Arxiv Blog Citation: Physicist suggests Einstein could have beaten Bohr in famous thought experiment (2012, March 9) retrieved 18 August 2019 from https://phys.org/news/2012-03-physicist-einstein-beaten-bohr-famous.html This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

first_img Only qualified professionals will be eligible to receive Michigan’s registered forester designation after reforms initiated by state Rep. Daire Rendon were signed into law this week.Rendon, of Lake City, said the strengthened requirements will help ensure Michigan’s forestlands are sustainably managed.“Most foresters provide quality, professional services. Unfortunately, all it takes is a couple of bad actors to tarnish the profession as a whole,” Rendon said. “While a title isn’t required to work in the industry, landowners who seek the services of a registered forester can now be assured that they’re getting a highly qualified individual who has been properly trained to sustainably manage forestland.”Rendon worked with professionals from across the forestry industry and the Michigan Department of Natural Resources to come up with the plan laid out in House Bills 5001-02, now Public Acts 116-17 of 2018. Rendon’s husband, former state Rep. Bruce Rendon, also worked on the issue extensively during his time in office.The new law establishes strict qualifications required to become a registered forester and creates an independent Board of Foresters to oversee the program, consider applicants and hear complaints regarding unprofessional activities.Under the new law, registered forester applicants are required to have specific levels of education and experience, in addition to references from at least three registered foresters. Once approved, a registered forester must abide by a professional code of conduct and meet continuing education requirements.“This is a smart reform that protects the sustainability of one of our precious natural resources,” Rendon said. “People will now have to prove they have the skills, education and integrity needed to properly manage our forests before they receive the registered forester designation in Michigan.”### 27Apr Rep. Rendon plan to improve Michigan’s registered forester program signed into law Categories: Daire Rendon Newslast_img read more

first_imgIn the UK meanwhile there has been much discussion around the creation of ‘Kangaroo 2’, a joint platform that references an earlier project that was blocked on anticompetitive grounds in a very different media environment.The German plan does not yet include an agreement between the main national broadcast players, as those in France and Spain do. ProSiebenSat.1’s deputy CEO Conrad Albert told ANGA COM executives earlier this month that a joint OTT TV platform made sense.““It is not easy to open up our own OTT platform to competitors but I think it could be to the benefit of all,” he said, earning a riposte from cable operator Unitymedia’s CEO Lutz Schuler that a lot of time had already been lost, enabling the likes of Netflix and Amazon to gain a much stronger foothold in the German streaming market.ProSiebenSat.1’s existing SVOD platform Maxdome has around a million subscribers, compared with an estimated 2.6 million for Netflix and 3.3 million for Amazon. Whether the new venture can close the gap is open to debate. The pair’s target of 10 million subscribers seems ambitious, particularly in a market that is slow to embrace premium services generally. The inclusion of Eurosport Player, with its Bundesliga football rights, could boost take-up if the price is right. However, it’s worth noting that both Discovery Channel and Eurosport Player are already present on the Amazon Channels service.This is illustrative of a wider point. For all the talk about creating national or even pan-European platforms that can take on the might of Netflix, pay TV broadcasters like Discovery are likely to hedge their bets, forging alliances of convenience as part of a multi-pronged strategy.For national players such as ProSiebenSat.1, the stakes are arguably higher. They see younger viewers increasingly consuming video online rather than via broadcast and no that they are in a battle to defend their established business models. Regulators are now actively encouraging them to collaborate – a significant change from the fate of such projects in the pre-Netflix age.Unlike national broadcasters, Netflix and Amazon can exploit original content rights across multiple territories within their own platform. The same is true to some extent of an emerging global player such as a combined Disney-21st Century Fox (or Comcast-21st Century Fox) as well as Discovery itself.National broadcasters on the other hand are restricted to their own particular territory for the most part. They also face growing competition not only from internet-based players but from telecom operators and other pay TV platforms that are pouring cash into original series. Meanwhile, inflation in content production costs means that they are turning to the likes of Netflix or Amazon to co-produce high-end drama and other content.After years of false starts, national broadcasters are now racing to create joint platforms, this time with the support of regulators. They still have an often under-appreciated asset in the shape of national reach for their still-popular broadcast services. It is to be hoped that they can transfer that legacy to the online world as the shift in consumption starts to accelerate. This week saw German broadcaster ProSiebenSat.1 team up with the mighty Discovery to launch a new OTT TV platform for Germany.The service, to be launched in the first half of next year, will incorporate ProSiebenSat.1’s 7TV and Maxdome services, Eurosport Player and a range of other content. The pair are however opening the platform plan up to the possible inclusion of rival broadcasters including RTL as well as public broadcasters ARD and ZDF.The alliance between Discovery and ProSiebenSat.1 builds on an existing free-to-view venture, 7TV, that the pair teamed up to create last yearThe idea of a national streaming platform open to all broadcasters is very much in vogue currently. Earlier this month, France’s main broadcast groups cooked up a similar plan – though without the participation of a pay TV giant like Discovery. The joint project, to be developed by France Télévisions, TF1 and under the Salto brand that has been around for a few years, will offer access to catch-up and current content as well as a subscription video-on-demand service without a contract commitment.In Spain, RTVE, Mediaset España and Atresmedia teamed up in May to develop a joint HbbTV platform with plans to create an OTT TV service further down the line.last_img read more

first_imgOPERATION BIJOUX: ONE MAN ARRESTED, FOUR PREMISES SEARCHED AND £1,600 IN FAKE NOTES SEIZED was last modified: March 29th, 2017 by John2John2 Tags: “If you have any information on stuff like that, let us know by calling 101, or ring Crimestoppers anonymously on 0800 555 111.” POLICE are jubilant after a haul of counterfeit notes and some stolen items were recovered during a pro-active search operation across Derry and Strabane.Local policing commander Gordon McCalmont said the raids – codenamed Operation Bijoux – were part of a crackdown on criminality across the district.The search operation involved teams from the Tactical Support Group, local District Support Team and Local Policing Teams. “Searches were conducted in relation to fraud at four premises which turned up over £1,600 in counterfeit currency.“We also managed to track down some items we believe to have been stolen.“One person was arrested for questioning.“Fraud like this doesn’t just affect your local spar, if notes aren’t picked up on, you could easily end up with one in your possession and be out of pocket.center_img ShareTweet 600 IN FAKE NOTES SEIZEDFOUR PREMISES SEARCHED AND £1GORDON MCCALMONTOPERATION BIJOUX: ONE MAN ARRESTEDlast_img read more