2019 TV buying advice Get a 2018 TV now or wait for

first_img iTunes app, AirPlay 2 Far-field mic for hands-free voice 8.3 No idea Quantum dots, more dimming zones 8.2 Far-field mic for hands-free voice The best TVs of CES 2019 Vizio P-Series Best new feature Vizio P-Series Quantum I’m guessing LG’s 2019 OLED TVs, coming soon, won’t perform significantly better than the 2018 versions seen here. Sarah Tew/CNET The last big TV sale event of the season, the Super Bowl, is now behind us, and ahead lie a bunch of brand-new 2019 models to tempt shoppers. Late winter and early spring are when most of the new TVs hit store shelves and online, and some are even available now. If you want a new TV now, perhaps one thought is “I shouldn’t buy an obsolete 2018 TV now when new ones are just around the corner.” Allow me to add a complexifier or two. A 2018 TV bought today is not obsolete. TVs are a mature technology and most will do everything you need for years to come. The improvements on many 2019 TVs will be minor compared to 2018 models available now. For most of this year, you’ll pay more for a 2019 TV than you will for the roughly equivalent 2018 model. The earliest you can expect 2019 TV prices to fall to 2018 levels is mid-November 2019. If you’re OK waiting until November and Black Friday season to buy your 2019 TV, then by all means do so. You’ll probably get the best deal on a new TV.  7.0 2 Now playing: Watch this: TVs 13:20 None Brighter, more dimming zones, 75-inch size available 2019 TV comparisons No Yes 8.6 2018 CNET rating Sony X900F But if you want a new TV now and missed your opportunity to snag something in the last few months on-sale, you face a conundrum. Will the 2019 version coming soon be a better choice than 2018 version you can buy now? I can’t actually answer that question for sure until I review the new TVs and compare them directly to the older ones. But in my years of doing just that as a TV reviewer at CNET, I’m willing to take some educated guesses now. No Samsung Q8 Comments Processing Viewing angles, processing No Vizio M-Series Quantum Tags Processing Samsung Q9 Quantum dots, more dimming zones Yes Yes LG OLEDB8P AirPlay 2, HomeKit Sony X950G Viewing angles, processing Samsung Q80R iTunes app, AirPlay 2 Vizio E-Series The best TVs at CES 2019 Vizio V-Series Katz’s guess: Significantly better picture? 6.9 No 7.7 2019 TV series 8.7 Vizio M-Series AirPlay 2, HomeKit Built-in Alexa AirPlay 2, HomeKit 2018 TV series 8.0 7.5 None No Yes 8.1 Armed with the information from the chart above, you can get some idea of what the TVs of 2019 will bring to the table compared to their predecessors, and hopefully make a more informed decision. And if you’re looking for more info on 2019 TVs, here the latest I have on 2019 TVs from LG, Samsung, Sony, Vizio, TCL and Hisense. Some stuff to keep in mind: Again, these are just guesses based on manufacturer info and my past experience testing TVs. I haven’t seen any of the 2019 TVs in person beyond brief glances at CES, let alone subjected any to a full CNET review with measurements, side-by-side comparisons and the whole bit. I say “significantly better” because even those TVs that get a “No” could show slight improvements. For example, improved processing on the C8 last year did produce a somewhat better picture than the B8 in my tests, but it was so minor that I still chose the less-expensive B8 as CNET’s Editors’ Choice for high-end TVs. Just because I’m guessing a 2019 TV will have a better picture doesn’t mean the 2018 version isn’t worth buying. I’m guessing the successor to the TCL 6 series (whatever they end up calling it) will be a better performer for example, but the 6 series is still an excellent choice and remains CNET’s Editors’ Choice for now. Speaking of TCL, it’s the only maker on the chart above that hasn’t specified model numbers for most of its 2019 TVs. Hence the “TBD” and “No idea.”Unless you’re rich, no 2019 8K TV is worth waiting for. Unless you’re a hardcore gamer or a Dolby Atmos user who needs eARC, no 2019 4K TV with HDMI 2.1 features is worth waiting for. A handful of new 2019 TVs lack immediate predecessors I reviewed, yet could still be excellent choices for some buyers this year. They include the Samsung Q70R (the cheapest Samsung with full-array local dimming, or FALD), the Hisense R8 (an inexpensive Roku TV with FALD) and of course LG’s rollable OLED. The bottom line? All of this advice will evolve as I review new 2019 TVs, the 2018 models start selling out and the 2019 TVs fall in price. As always, waiting until later in the year will help you make a more informed decision. But if you can’t wait, here are the best TVs to buy right now. 8.7 Vizio P-Series Quantum X LG OLEDC8P TCL 5 TCL S405/S305 TBD AirPlay 2, HomeKit Samsung Q90R Yes 61 Photos 8.1 LG OLEDB9 TCL S425/S325 Far-field mic for hands-free voice TBD Brighter Vizio P-Series Quantum Quantum dots, more dimming zones None TCL 6 No Share your voice Picture quality improvements Built-in Alexa TBD 2018 vs. 2019 TVs compared: Buy now or wait Here are all of the TVs CNET reviewed in 2018 (with overall ratings) and all of their nearest 2019 successors. I’ve noted the major improvements, based on TV manufacturer information available now, for both image quality and features. Finally, I guess whether the 2019 TV’s picture quality will be any better than its predecessor. LG OLEDC9 last_img read more

Your Mac could be hijacked through major security flaw in Zoom conferencing

first_img 14 Photos Now playing: Watch this: The top 3 upgrades in MacOS Catalina 0 4:39 Apple Aug 31 • iPhone XR vs. iPhone 8 Plus: Which iPhone should you buy? In a statement, Zoom said the local web server is a workaround for Apple’s Safari 12 web browser, introduced last September.”Zoom installs a local web server on Mac devices running the Zoom client,” the statement reads. “This is a workaround to an architecture change introduced in Safari 12 that requires a user to accept launching Zoom before every meeting. The local web server automatically accepts the peripheral access on behalf of the user to avoid this extra click before joining a meeting. We feel that this is a legitimate solution to a poor user experience, enabling our users to have seamless, one-click-to-join meetings, which is our key product differentiator.”In regard to a potential denial of service attack, Zoom says it has no record of such a weakness being exploited, and says it fixed that security flaw in May. Along with the likes of Slack, Uber and Pinterest, Zoom is one of many tech companies to go public in 2019. It raised $356 million upon its April 18 IPO, with its shares trading as high as $66 on that day. The stock has risen since, currently sitting at around $90.70. Post a comment Aug 31 • iPhone 11, Apple Watch 5 and more: The final rumors Enlarge ImageZoom says the flaw was born out of a workaround for Safari 12. Sarah Tew/CNET Your computer’s webcam has always been a gateway for potential security intrusion, which is why people like Mark Zuckerberg and ex-FBI head James Comey put tape over theirs. On Monday, security researcher Jonathan Leitschuh gave Mac users another reason to fret over their webcams — there’s a security flaw in the Zoom video-conferencing app.Zoom is most notable for its click-to-join feature, through which clicking on a browser link takes you directly to a video meeting in Zoom’s app. But Leitschuh in a Medium post explained that he months ago discovered Zoom achieves this in insecure ways, allowing websites to join you to a call as well as activating your webcam without your permission.He added that this would allow any webpage to denial-of-service a Mac by repeatedly joining you to an invalid call. Uninstalling the Zoom app from your Mac isn’t enough to fix the problem, either. Zoom achieves its click-to-join function by installing a web server on your computer — which can reinstall Zoom without your permission.”If you’ve ever installed the Zoom client and then uninstalled it, you still have a localhost web server on your machine that will happily re-install the Zoom client for you,” Leitschuh writes, “without requiring any user interaction on your behalf besides visiting a webpage. This re-install ‘feature’ continues to work to this day.”1-mrgy9jojkkjsrp-xjsyomwHere’s the first setting you should change in Zoom. Jonathan Leitschuh/Medium For those of you who have the Zoom app installed on your Mac, Leitschuh, in his Medium post, lists directions to neutralize the local server in his Medium post. You should also activate the Turn off my video setting when joining a meeting, as seen above.The researcher said he contacted Zoom on March 26, giving the company a public disclosure deadline of 90 days. He said Zoom patched the issue, disabling the ability of a webpage to automatically turn on your webcam, but still this partial fix regressed on July 7, allowing webcams to once again be turned on without permission. reading • Your Mac could be hijacked through major security flaw in Zoom conferencing app Aug 31 • Verizon vs AT&T vs T-Mobile vs Sprint: Choose the best 5G carrier • See All Share your voice Aug 31 • Your phone screen is gross. Here’s how to clean it Apple Tags Computers Security Apple Mac Pro: Expensive, sleek and definitely not for grating cheeselast_img read more

After Harleen Sethi is Vicky Kaushal dating Malavika Mohanan

first_imgInstagramVicky Kaushal’s onscreen performances have generated the same kind of buzz that his off-screen life has. The interest around one of the country’s most eligible bachelors refuses to die down and rightly so! Well, ladies, brace yourselves as this particular piece of information might be very hard to digest.After breaking up with Harleen Sethi, Vicky Kaushal is allegedly seeing actress Malavika Mohanan. It has barely been a few months since Vicky Kaushal made news for his relationship with actress Harleen Sethi and then made subsequent news for their unceremonious break-up and now, the Uri actor is back in news for dating Ishaan Khatter’s Beyond The Clouds co-star – Malavika Mohanan.A pinkvilla report states, “Malavika is always talking glowingly about him to everybody. She likes him so much she cannot stop gushing about him and while Vicky is more reticent, he does these little romantic gestures, like dropping in and surprising her on the sets of one of her South films and taking her out for lunch. Vicky loves home-cooked South Indian food and often drops in on the Mohanan house in Mumbai like Thursday night. Even though he’s a Punjabi, he loves the South Indian style fish-curry and rice but on Thursday he was disappointed it was not there so Malavika pulled his leg on Insta by posting “Deprived of fish curry and rice. Life is not a Mani Ratnam film today.”Prior to this, Vicky Kaushal was also in news for his alleged closeness to Katrina Kaif and Bhumi Pednekar. Bhumi was cited as the reason for his breakup with Harleen Sethi. Needless to say, Malavika and Vicky look fabulous together and we hope this time, Vicky comes out in the open and accepts his relationship.last_img read more

Researchers identify possible catalyst for converting methane to methanol at room temperature

first_img 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. Scientists would very much like to find a way to convert methane (the primary component in natural gas) to methanol at room temperature. Doing so would offer a new source of liquid fuel that would be readily available due to the abundance of methane. Unfortunately, researchers have found it difficult going due to the unreactive nature of methane. In this new effort, the researchers report on progress they believe they have made in achieving that goal.As Labinger reports, that progress has come in two forms. The first was developing an aid for picking out the active site of a heterogeneous catalyst from a host of candidates. The second involved creating a design for converting methane to ethanol that would be both efficient and achievable at room temperature.To create their design, the team looked at an iron-containing structure generated via a zeolite (a type of mineral) that had been reported back in 1997. Since that time, researchers have used various techniques to ascertain that such structures contain another structure known as the α-Fe(ii) center, an important component in converting methane to methanol at room temperature. The new design involved proposing a means of describing a structure with an unusual monometallic iron center. They then conducted experiments using Mössbauer spectroscopy that indicated they were on the right track, which could lead eventually to finding the catalyst they are seeking.The finding by the team is good news, Labinger suggests, though he cautions that it is unlikely that the same approach could be used for solving other catalytic problems. Journal information: Nature Explore further 3-D printed polymer turns methane to methanol Citation: Researchers identify possible catalyst for converting methane to methanol at room temperature (2016, August 18) retrieved 18 August 2019 from https://phys.org/news/2016-08-catalyst-methane-methanol-room-temperature.htmlcenter_img Ball and stick model of methane. Credit: Ben Mills/Public Domain © 2016 Phys.org (Phys.org)—A team of researchers from Belgium and the U.S. has identified the active site of an iron-containing catalyst that has raised hopes for designing a practically useful catalyst that might make converting methane to methanol a possibility. In their paper published in the journal Nature, the researchers describe their efforts, what they discovered and why they believe their findings may lead to a practical way to convert methane to a more efficient energy resource. Jay Labinger, with the California Institute of Technology offers a News & Views piece outlining the work done by the team in the same journal issue. More information: Benjamin E. R. Snyder et al. The active site of low-temperature methane hydroxylation in iron-containing zeolites, Nature (2016). DOI: 10.1038/nature19059AbstractAn efficient catalytic process for converting methane into methanol could have far-reaching economic implications. Iron-containing zeolites (microporous aluminosilicate minerals) are noteworthy in this regard, having an outstanding ability to hydroxylate methane rapidly at room temperature to form methanol. Reactivity occurs at an extra-lattice active site called α-Fe(II), which is activated by nitrous oxide to form the reactive intermediate α-O; however, despite nearly three decades of research, the nature of the active site and the factors determining its exceptional reactivity are unclear. The main difficulty is that the reactive species—α-Fe(II) and α-O—are challenging to probe spectroscopically: data from bulk techniques such as X-ray absorption spectroscopy and magnetic susceptibility are complicated by contributions from inactive ‘spectator’ iron. Here we show that a site-selective spectroscopic method regularly used in bioinorganic chemistry can overcome this problem. Magnetic circular dichroism reveals α-Fe(II) to be a mononuclear, high-spin, square planar Fe(II) site, while the reactive intermediate, α-O, is a mononuclear, high-spin Fe(IV)=O species, whose exceptional reactivity derives from a constrained coordination geometry enforced by the zeolite lattice. These findings illustrate the value of our approach to exploring active sites in heterogeneous systems. The results also suggest that using matrix constraints to activate metal sites for function—producing what is known in the context of metalloenzymes as an ‘entatic’ state—might be a useful way to tune the activity of heterogeneous catalysts.last_img read more