reading • Improve your posture with this clever desk-chair accessory for $71 • $999 Preview • iPhone XS is the new $1,000 iPhone X $999 Aug 31 • Your phone screen is gross. Here’s how to clean it Tags Aug 31 • Best places to sell your used electronics in 2019 Mentioned Above Apple iPhone XS (64GB, space gray) Computer Accessories Mobile Accessories Digital Media $999 Boost Mobile It may look like a backpack, but the Posture Keeper is a clever new way to keep you sitting upright at your desk. Posture Keeper Yesterday I shared a deal on a desk and a desk chair. Today, let’s talk about how to improve your posture while you’re sitting there.I’ll preface this by saying that I’m a pretty typical desk-bound worker (because writer, duh). And I’ve definitely experienced my share of neck and shoulder pain — some of it severe. I know my chair posture is terrible, alternating between slumping, leaning and rigid uprightness when I catch myself doing the other two.This is pretty common. Lots of people suffer from neck, back and shoulder issues resulting from poor posture. And so Posture Keeper was born. It works with most desk chairs to help you correct your posture — and, hopefully, reduce pain.The PK just transitioned from successfully funded Kickstarter project to commercially available product, and I’ve got an exclusive deal for you. For a limited time, and while a fairly limited first batch lasts, Lifecycle Gifts (via Amazon) has the Posture Keeper for $71.10 with promo code cheapskate10. It’s normally $79.See it at AmazonI realize that’s not much of a discount, but I also think that for anyone who suffers from the kind of desk-related pain I described, even full price is a bargain — assuming the PK actually works.Does it? I’ve been test-driving an early production sample for the past couple months. And I like it — a lot — but with a couple caveats.Imagine putting a backpack over your chair and then putting the straps over your shoulders. Presto: Now you’re effectively strapped to the chair and forced to sit upright — with lumbar support to round out the equation.For me this prevents my two biggest issues: slumping and craning my neck forward. Consequently, I’ve seen a noticeable reduction in neck and shoulder pain. Your mileage may vary, of course, and I can’t comment on how this might affect back issues, because luckily I haven’t had them.Although it’s quite easy to get in and out of the straps, I do find it a hassle sometimes when I need to reach for something across my desk. I’m literally trapped, so I have to unstrap myself, grab what I need, then strap in again. That can be annoying, no question.It also takes a bit of doing to get the Posture Keeper positioned just right. The included instructions are helpful, but plan on some trial and error — possibly over the course of a few days. Once I got it placed to my liking, however, I never had to move it again.I have no idea how this compares with less expensive posture-correcting braces, because I’ve never tried one. I’ll just say that I like the Posture Keeper much more than I thought I would, and it seems to be helping me exactly the way it’s supposed to.Your thoughts?Bonus deal: As you may know, I’m something of a Battlestar Galactica fan. (Just wrapped up a podcast covering the entire series, in fact.) You can currently stream the show on Amazon Prime and Hulu, but if you’d rather own it outright, here’s the best deal I’ve seen to date.For a limited time, Vudu is offering Battlestar Galactica: The Complete Series: Volume 1 (HD) for $14.99. That bundle includes the mini-series, season 1 and season 2. It normally sells for $112 (!).See it at VuduWhile you’re at it (as if you could stop with S2), grab Volume 2 for $14.99 — it completes the series with S3 and S4.If you prefer to stick with Apple’s ecosystem, good news: iTunes also has Volume 1 and Volume 2 for $14.99 each. Wherever and however you watch it, I can’t recommend this show highly enough. It’s in my top five of all time.Bonus deal No. 2: I love mobile chargers that have built-in cables. One less thing to deal with, you know? If you’re an iPhone or iPad user, here’s one you might like.The Olala S102-i comes with an internal Lightning cable and can charge two devices at once. Olala For a limited time, and while supplies last, the Olala S102-i 10,000-mAh power bank with Lightning cable is just $15.05 with promo code OLALA57OFF. It normally sells for $32-$35.See it at AmazonThe MFi-certified cable that accompanies this is fully removable, meaning you can also use it to sync your device if need be. And there’s a secondary USB port for charging additional devices.A few reviewers cited issues with the reliability of that cable, hence the 3.9-star average. However, the S102-i is backed with a one-year warranty, should you encounter a similar problem. For $15 out the door, I’m liking this deal.CNET’s Cheapskate scours the web for great deals on PCs, phones, gadgets and much more. Note that CNET may get a share of revenue from the sale of the products featured on this page. Questions about the Cheapskate blog? Find the answers on our FAQ page. Find more great buys on the CNET Deals page and follow the Cheapskate on Facebook and Twitter! CNET may get a commission from retail offers. The Cheapskate Health and Wellness Apple iPhone XS See It See it Best Buy $999 Sep 1 • iPhone 11, Apple Watch 5 and more: The final rumors 8 Comments Sprint Aug 31 • iPhone XR vs. iPhone 8 Plus: Which iPhone should you buy? Review • iPhone XS review, updated: A few luxury upgrades over the XR Share your voice See All Apple See It See It Best laptops for college students: We’ve got an affordable laptop for every student. Best live TV streaming services: Ditch your cable company but keep the live channels and DVR. Amazon Apple
Citation: Researchers use quantum entanglement to improve differential interference contrast microscopy (2014, February 11) retrieved 18 August 2019 from https://phys.org/news/2014-02-quantum-entanglement-differential-contrast-microscopy.html Illustration of (a) LCM-DIM and (b) the entanglement-enhanced microscope. The red and blue lines indicate horizontally and vertically polarized light. (c), (d) and (e) The change in the signal while the sample is scanned. Credit: arxiv.org/abs/1401.8075 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. Physics team entangles photons that never coexisted in time Besides offering a way to create sharper images, the new technique might also prove useful for looking at material that is easily damaged by strong light—it might also lend itself to other types of measuring devices such as interferometers. © 2014 Phys.org More information: An entanglement-enhanced microscope, Nature Communications 4, Article number: 2426 DOI: 10.1038/ncomms3426 . On Arxiv: http://arxiv.org/abs/1401.8075AbstractAmong the applications of optical phase measurement, the differential interference contrast microscope is widely used for the evaluation of opaque materials or biological tissues. However, the signal-to-noise ratio for a given light intensity is limited by the standard quantum limit, which is critical for measurements where the probe light intensity is limited to avoid damaging the sample. The standard quantum limit can only be beaten by using N quantum correlated particles, with an improvement factor of √N. Here we report the demonstration of an entanglement-enhanced microscope, which is a confocal-type differential interference contrast microscope where an entangled photon pair (N=2) source is used for illumination. An image of a Q shape carved in relief on the glass surface is obtained with better visibility than with a classical light source. The signal-to-noise ratio is 1.35±0.12 times better than that limited by the standard quantum limit. Explore further Journal information: Nature Communications (a) Atomic force microscope (AFM) image of a glass plate sample (BK7) on whose surface a ‘Q’ shape is carved in relief with an ultra-thin step using optical lithography. (b) The section of the AFM image of the sample, which is the area outlined in red in (a). The height of the step is estimated to be 17.3 nm from this data. (c) The image of the sample using an entanglement-enhanced microscope where two photon en- tangled state is used to illuminate the sample. (d) The image of the sample using single photons (a classical light source). Credit: arxiv.org/abs/1401.8075 Scientists have been using a type of microscope that relies on reading information from pairs of photons reflected off of a surface for several years. The difference between the information provided by each of the photons (the difference in phase) allows for creating an image. The result is stunningly sharp ultra-close-up images of three dimensional surfaces (such as microchips or microorganisms). Until now, however, the resolution of this type of microscopy—known as differential interference contrast microscopy—has been limited by the standard quantum limit—which is based on the Heisenberg uncertainty principle. Scientists have also known for some time that if entangled photons were used instead, they could bypass that limit and create images with better resolution. In this new effort, that’s exactly what the researchers have done.The reason that using entangled photons allow for more information is because measuring one gives information about the other, which results in more information obtained than from two un-entangled photons. The researchers tested this theory by replacing the part of the microscope that emits photons, with one that emitted entangled photons—with it in place they etched the letter “Q” into a glass plate and then proceeded to create an image of it using their new and improved microscope. In so doing, they found an improved signal to noise ratio of 1.35—which can be seen by the naked eye when comparing photographs of the same etching done by both the new and old method. (Phys.org)—A team of researchers with members from Hokkaido and Osaka Universities in Japan has used quantum entanglement of photons to improve image results created using differential interference contrast microscopy. In their paper published in Nature Communications, the team describes how they used entangled photons to enhance an image taken of an etched (to a depth of just 17 nanometers) letter “Q” on a glass plate, and how much improvement was observed.
With the arrest of two persons, who set up a website and duped several Kashmiri youths on the pretext of jobs as crew members and ground staff in Indigo Airlines, the Delhi Police has stumbled upon an inter-state fake job module operating from Central Delhi, the police said on Thursday.The matter came into light when a 22-year-old man, along with 15 other youths, from the Anantnag district of Jammu and Kashmir approached the Jama Masjid police station on March 16. While, two of the identified accused – Irfan and Mohammed Shahid, have been arrested, two others – Amir Shora and Yawar Naik, still remain at large. “We suspect that the module had been working from a long time and have duped hundreds of youths. There could be more members in this module and investigations are underway,” said Paramaditya, Deputy Commissioner of Police (Central). Also Read – Company director arrested for swindling Rs 345 croreAccording to the police, the accused set up a website named Peace Career Consultancy and Job Assistance and advertised themselves through OLX.com. On March 8, the 22-year-old complainant came across the advertisement and applied for the job, for which he first had to meet Yawar and deposit a registration fee of Rs 1,000 at the consultancy office in Anantnag. The next day, the complainant, along with around 50 others were interviewed by Amir Shora, who claimed to be a representative of Indigo Airlines. Soon, the complainant was informed that he has been selected as a ground staff, with a start-up salary of Rs 17,000. But he was also asked to leave for Delhi immediately for the final round of interaction and for collecting the appointment letter. Also Read – Man who cheated 20 women on matrimonial websites arrestedOn March 10, on his way to Delhi in a bus, the complainant met 15 others who were selected as ground staff in Indigo Airlines through the same consultant. They lodged themselves in the same hotel in old Delhi’s Jama Masjid area. Meanwhile, the interaction scheduled on March 12 went on getting postponed and on March 15, the applicants were asked to report at the Indigo Airlines headquarters in Gurgaon. When they went there, they were told that there was no interview. That is when they started suspecting the consultant. On March 16, the consultant sent two persons – claiming to be Head Representatives – to the old Delhi Hotel for the final interaction. The job-seekers then immediately asked them to show their identity cards. When they refused, they were asked several questions – like the address of their head office and so – which they apparently had no clues about. The duo then tried to run away when the youths got hold of them and handed them over to the police. They were identified as Irfan and Mohammed Shahid.They have been booked under charges of cheating and other relevant sections of IPC. A team shall soon be sent to Anantnag to nab the other accused, said a police official.
Get the biggest Daily stories by emailSubscribeSee our privacy noticeThank you for subscribingSee our privacy noticeCould not subscribe, try again laterInvalid EmailMotorists are being advised to expect delays around the A34 as a wide-load travels through North Staffordshire this weekend. Police say the load will be travelling up from Stafford to Newcastle-under-Lyme, via the A34 Northbound on Sunday December 3. The load’s route will take it from Stafford, through Stone and then onto Newcastle. Staffordshire Police have warned that delays and diversions are likely as the vehicle, and its escort, travel through the region. The load is said to be one of the largest yet – weighing 587 tons, 105 metres long and 5.77 metres wide. The wide-load is due to leave Stafford at 8am. We will be bringing you live updates on the load’s progress through North Staffordshire on Sunday morning. Another wide-load passed through the region yesterday morning. Read MorePolice name lorry driver who died in accident on A500 For the latest traffic and travel news from across the region, you can visit our designated Traffic and Travel channel here. For live travel news for the rest of Monday, visit our Live News Service here.