The SpotMini has just upped the stakes. Boston Dynamics Ten SpotMini robots have demonstrated their strength by hauling a truck across a parking lot. Boston Dynamics, the company behind robots like the SpotMini, Spot and Atlas, posted the video on YouTube on Tuesday. Boston Dynamics wasn’t immediately available for comment but said in the video’s description that the robots are being developed for a range of applications. Last May, the company’s president, Marc Raibert, said SpotMini robots should be ready for sale this year. The SpotMini is a four-legged robot that handles objects, climbs stairs and is capable of working in office, home and outdoor settings. The robot can carry about 31 pounds, weighs about 66 pounds and stands at just 2.6 feet. SpotMini has a battery life of about 90 minutes, depending on the task. Boston Dynamics says the SpotMini is the quietest robot it’s built. Robots,I’m shocked — shocked! — to learn that stores are turning Labor Day into an excuse to sell stuff. Wait — no, I’m not. As much as I respect the original intent of the holiday (which became official back in 1894), to most of us, it’s just a bonus day off — one that’s blissfully tacked onto a weekend. So, yeah, stores; go ahead, run your sales. I’m listening. Perhaps unsurprisingly, Labor Day doesn’t bring out bargains to compete with the likes of Black Friday (which will be here before you know it), but there are definitely some sales worth your time.For example:We’ve rounded up the best Labor Day mattress deals.We’ve also gathered the best Labor Day laptop deals at Best Buy.The 2019 Vizio P Series Quantum is back under $999.Be sure to check out Amazon’s roughly three dozen Labor Day deals on TVs and audio. Google Express is having a big sale as well, one that includes deals on game consoles, AirPods, iPhones, laptops and more.Below I’ve rounded up a handful of individual items I consider to be the cream of the crop, followed by a handy reference guide to other Labor Day sales. Keep in mind, of course, that products may sell out at any time, even if the sale itself is still running. Note that CNET may get a share of revenue from the sale of the products featured on this page. Amazon Sprint 7 Read DJI Osmo Action preview Sarah Tew/CNET Comment Read Lenovo Smart Clock review HP Laptop 15t Value: $520 (save $780) Turo is kind of like Uber meets Airbnb: You borrow someone’s car, but you do all the driving. I’ve used it many times and found it a great alternative to traditional car-rental services — in part because you get to choose exactly the vehicle you want (not just, say, “midsize”) and in part because you can often do pickup and dropoff right outside baggage claim.Between now and Sept. 1, the first 300 people to check out can get $30 off any Turo rental with promo code LDW30. $999 Preview • iPhone XS is the new $1,000 iPhone X Sarah Tew/CNET CNET may get a commission from retail offers. See It Read Google Home Hub review I thought this might be a mistake, but, no, the weirdly named HP Laptop 15t Value is indeed quite the value at this price. Specs include an Intel Core i7 processor, 12GB of RAM, a 256GB solid-state drive and a 15.6-inch display. However, I strongly recommend paying an extra $50 to upgrade that display to FHD (1,920×1,080), because you’re not likely to be happy with the native 1,366×768 resolution. 1 $60 at Best Buy Now playing: Watch this: The problem with most entry-level laptops: They come with mechanical hard drives. That makes for a mighty slow Windows experience. This Lenovo model features a 128GB solid-state drive, so it should be pretty quick to boot and load software, even with its basic processor. Plus, it has a DVD-burner! That’s not something you see in many modern laptops, especially at this price. Rylo 5.8K 360 Video Camera: $250 (save $250) DJI’s answer to GoPro’s action cameras is rugged little model that’s shockproof, dustproof and waterproof down to 11 meters. It normally runs $350, but this deal drops it to $261 when you apply promo code 19LABOR10 at checkout. 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. TVs Speakers Mobile Accessories Cameras Laptops Automobiles Smart Speakers & Displays Read the AirPods review $999 Use promo code 19LABOR10 to get an unusually good deal on JBL’s interesting hybrid product — not quite headphones, and not quite a traditional speaker, but something you wear like neckphones to listen to music on the go. Angela Lang/CNET An Echo Dot makes a fine match for any Fire edition TV, because you can use the latter to say things like, “Alexa, turn on the TV.” Right now, the 24-inch Insignia Fire TV Edition starts at just $100, while the 32-inch Toshiba Fire TV Editions is on sale for $130. Just add any Fire TV Edition to your cart, then add a third-gen Echo Dot, and presto: The latter is free. See at Turo Free Echo Dot with an Insignia or Toshiba TV (save $50) $90 at Daily Steals via Google Express Sarah Tew/CNET Share your voice Apple iPhone XS Best Buy See It $999 Though not technically a Labor Day sale, it’s happening during Labor Day sale season — and it’s too good not to share. Nationwide Distributors, via Google Express, has just about the best AirPods deal we’ve seen (when you apply promo code ZBEDWZ at checkout). This is for the second-gen AirPods with the wireless charging case. Can’t imagine these will last long at this price, so if you’re interested, act fast. Formerly known as the Google Home Hub, Google’s Nest Hub packs a wealth of Google Assistant goodness into a 7-inch screen. At $59, this is within a buck of the best price we’ve seen. It lists for $129 and sells elsewhere in the $89-to-$99 range.This is one item of many available as part of eBay’s Labor Day Sale (which, at this writing, doesn’t specifically mention Labor Day, but that’s how it was pitched to us). Sarah Tew/CNET Watch this robot identify and sort recycled goods Chris Monroe/CNET Read the Rylo camera preview See at Amazon Turo Rylo The Cheapskate $299 at Amazon Apple AirPods with Wireless Charging Case: $155 (save $45) Tags $59 at eBay Share your voice 2:30 $261 at Daily Steals via Google Express Google Nest Hub: $59 (save $70) See It See it Mentioned Above Apple iPhone XS (64GB, space gray) What’s cooler: A snapshot of a firework exploding in front of you, or full 360-degree video of all the fireworks and all the reactions to seeing them? Oooh, ahhh, indeed. At $250, the compact Rylo dual-lens camera is selling for its lowest price yet. And for an extra $50, you can get the bundle that includes the waterproof housing.This deal runs through Sept. 3; it usually costs $500. Comments Tags $155 at Google Express $210 at Best Buy JBL Soundgear wearable speaker: $90 (save $160) Boost Mobile Sci-Tech Recently updated to include digital-photo-frame capabilities, the Lenovo Smart Clock brings Google Assistant goodness to your nightstand. It’s a little smaller than the Amazon Echo Show 5, but also a full $30 less (and tied with Prime Day pricing) during this Best Buy Labor Day sale. DJI Osmo Action camera: $261 (save $89) Other Labor Day sales you should check out Best Buy: In addition to some pretty solid MacBook deals that have been running for about a week already, Best Buy is offering up to 40% off major appliances like washers, dryers and stoves. There are also gift cards available with the purchase of select appliances. See it at Best BuyDell: Through Aug. 28, Dell is offering an extra 12% off various laptops, desktops and electronics. And check back starting Aug. 29 for a big batch of Labor Day doorbusters. See it at DellGlassesUSA: Aug. 29 – Sept. 3 only, you can save 65% on all frames with promo code labor65. See it at GlassesUSALenovo: The tech company is offering a large assortment of deals and doorbusters through Labor Day, with the promise of up to 56% off certain items — including, at this writing, the IdeaPad 730S laptop for $700 (save $300).See it at LenovoLensabl: Want to keep the frames you already love and paid for? Lensabl lets you mail them in for new lenses, based on your prescription. From now through Sept. 2 only, you can save 20% on the blue light-blocking lens option with promo code BLOCKBLUE. See it at LensablSears: Between now and Sept. 7, you can save up to 40% on appliances (plus an additional 10% if you shop online), up to 60% on mattresses, up to 50% on Craftsman products and more. The store is also offering some fairly hefty cashback bonuses. See it at SearsNote: This post was published previously and is continuously updated with new information.CNET’s Cheapskate scours the web for great deals on tech products and much more. For the latest deals and updates, follow the Cheapskate on Facebook and Twitter. Questions about the Cheapskate blog? Find the answers on our FAQ page, and find more great buys on the CNET Deals page. Turo: Save $30 on any car rental Spotify and most other streaming services rely on compressed audio, which robs the listener of full fidelity. Enter Tidal, the only “major” service that delivers lossless audio — meaning at least on par with CD quality, if not better. Want to see (er, hear) the difference for yourself? Grab this excellent extended trial while you can. It’s just $6 for three months, and it’s good for up to six listeners. $999 Tidal 3-month family subscription: $5.99 (save $54) Lenovo 130-15AST 15.6-inch laptop: $210 (save $90) $520 at HP Lenovo Smart Clock: $59.99 (save $20) Review • iPhone XS review, updated: A few luxury upgrades over the XR $6 at Tidal
By George Kevin Jordan, Special to the AFROThe quiet neighborhood got a jolt of funk, hip-hop and rock and roll last Sunday at the 2nd annual Porchfest DC, which brought music, comradery and bar-b-que right to your doorstep. The afternoon started off with music wafting through the air. At times it had a go-go swing, at other times you could hear a tenor cutting through the air with just their notes and a beat. This was Porchfest DC. The sun bore down hard throughout the day. But a slight breeze cut the neighborhood some slack.Porchfest DC allowed for residents to head to houses in the Hillcrest neighborhood to listen live to local musicians. (Photo by George Kevin Jordan)It was easy to report on this event as I am a new-ish Hillcrest resident and didn’t have too far to travel before the sounds of sizzling vegetables outpaced the aroma of grilled meats. According to the newsletter, “The goal of the Southeast, D.C. Porchfest is not just to spotlight emerging talent, but to shine a light on the beautiful communities in Wards 7 and 8.”Hillcrest is a prime example of beauty with idyllic homes and immaculate lawns that stretch up and over hills, and valleys. But the neighborhood touted as “Washington, D.C.’s best kept secret,” may not be a secret much longer after this weekend’s festivities.According the Hillcrest Civic Association, the area is bordered by: “a line beginning at the intersection of 31st Street, SE and Pennsylvania Avenue, extending southeastward along Pennsylvania Avenue SE to the intersection of Pennsylvania Avenue, S.E. and the District of Columbia boundary line (at Southern Avenue, S.E.); extending southwestward along that District Line to the intersection of that line with Naylor Road, S.E.; extending northward along Naylor Road, SE to the intersection of Naylor Road, SE with 27th Street, S.E.; from thence in a straight line running eastward through the park to reach the upper point of 31st Street, S.E. and then following 31st Street, S.E. northward to the original intersection of 31st Street S.E. and Pennsylvania Avenue, S.E. said boundary to include both sides of 31st Street, SE including Randle Highlands Elementary School.”The population of the neighborhood is about 4,700, according to Niche.com, and boasts a population that is 89% Black, and a diverse age demographic that is split between millenials, gen-xers and baby boomers according to data from the site. A good sized group of those people all sat together in their neighbor’s lawns for Porchfest. People brought their lawn chairs, bikes, food and flowing dresses, and listened to jazz as children tried to learn to skateboard down streets. Porchfest DC was what it would look like if Erykah Badu and Lena Horne had a block party. It was both laid back and elegant. Both “woke” and “non-pressed.” Both “sophisticated” and super casual.”Artists from across the District performed intimate sets with nothing but light and mosquitos between them. There was a market with candles that eased tensions and smelled of herbs and were good for the environment, along with fun snarky tee-shirts and lots of lemonade and fruity drinks. The object of Porchfest is to stroll from house to house taking in the performances at each residence. But once you set foot in one backyard it was hard to leave. One wanted to just lean back in the chair and take a nap serenaded by a jazz artist. Slated performers included DJ Goldy Smokes, TY Jones, Deuce Ducartier, Future Band, Cassonovela, Femi, Black Out Band, Original Jesus Gang, Sweet Something and Bliss Ananda to name a few. There was also yoga, a kids party and events for all ages. The event was scheduled from noon to 6 p.m. but music thumped through the air well past dark. The festival originated in Ithaca, NY, by Gretchen Hildreth and Lesley Greene, according to the site. But fever for the fest has spread throughout the country. In DC the Porchfest has landed in District neighborhoods like Adams Morgan and Rhode Island Avenue. Want to know where Porchfest DC will go next? Take the survey at: https://www.surveymonkey.com/r/DGCMHD2
Experiment reverses the direction of heat flow Citation: Entanglement without Classical Correlations (2008, August 27) retrieved 18 August 2019 from https://phys.org/news/2008-08-entanglement-classical.html Quantum mechanics is full of counterintuitive concepts. The idea of entanglement – when two or more particles instantaneously exhibit dependent characteristics when measured, no matter how far apart they are – is one of them. Now, physicists have discovered another counterintuitive result that deals with the line between the quantum and classical worlds. Explore further Normally, when two or more particles are entangled (and seem to communicate with each other instantaneously), they not only share quantum correlations, but also classical correlations. Although physicists don’t have an exact definition for classical correlations, the term generally refers to local correlations, where information does not have to travel faster than the speed of light. So if entangled particles demonstrate correlations across large distances, you might assume that they will also have correlations across shorter distances. After all, if entangled particles can communicate at faster-than-light speeds, they should be able to communicate at slower-than-light speeds.But a team of physicists from the National University of Singapore, Mediterranean Technology Park in Barcelona, the University of Leeds, and the University of Bristol has demonstrated something different. They’ve theoretically shown that any odd number (greater than one) of entangled particles can exist without classical correlations. They explain this paradox in a recent issue of Physical Review Letters.“One way of seeing this is as follows,” Vlatko Vedral, Professor of Quantum Information Science at the University of Leeds, told PhysOrg.com. “Entanglement means being correlated as far as many different measurements are concerned. Classical correlations mean being correlated as far as one particular measurement is concerned. That is why researchers usually think that when there is entanglement, there are also classical correlations. However, our paper shows that you have to be careful about making this inference.”As Vedral explained, generally when physicists measure entanglement, their measurements destroy the quantum correlations first, and then the classical correlations. “Entanglement represents excess of correlations, over and above classical ones. In other words, whatever cannot be accounted for locally is due to quantum entanglement. When you make local measurements on entangled particles, then you will invariably be destroying their correlations (both classical and quantum). Since quantum is in excess of classical, it is possible that you can first get rid of entanglement, but are still left with some classical correlations.” But to do the opposite of this – to get rid of the classical correlations and have only quantum correlations – is more difficult to comprehend.“Imagine that I tell you that I am a billionaire,” Vedral said as an example. “You would then infer that I certainly have 100 million somewhere in my assets. You would be very surprised, indeed, if I told you that this was not true and that I am actually not also a millionaire. You can’t have more, without have less as well (by definition).”This is not the first time that physicists have demonstrated entanglement without classical correlations. In 2006, Toth and Acin found an example of a three-qubit system that also shows this phenomenon. This three-qubit example has already been observed in the laboratory, and the physicists hope that their new example with any odd number of qubits can also be observed. They also expect that even numbers of qubits should exhibit the same effect, but do not yet have an example.“The key is that we are using one particular definition of classical correlations, which is in fact the main one used in the solid state physics (and is used to mark phase transitions among other things),” Vedral said. “This is based on average values of a set of observables and the key is that this set is not complete. However, when it comes to two particles (and two point correlations is what all solid state experiments are about) then you cannot have the situation that we found with three and more particles. Namely, if classical correlations vanish for two qubits, then so do the quantum ones.”The paradox that quantum correlations can exist without accompanying classical correlations could have some thought-provoking consequences. For instance, physicists often use a test of Bell inequalities to determine if local realism has been violated and that quantum correlations have occurred. But since Bell inequalities are based on classical correlations, the test doesn’t work for this example. This leads to the need for a new way to detect quantum correlations, based on different concepts.The study may also affect how physicists view the boundary between the classical and quantum worlds – a question at the foundation of physics. With this demonstration of the existence of a state that has quantum correlations without classical correlations, the physicists suggest that local realism might be used as the criteria to characterize the classical world.The result could also have practical applications – for instance, as a possible method for detecting phase transitions. Using quantum correlations only (instead of both quantum and classical) for detecting phase transitions could provide a more universal measurement than conventional methods.More information: Kaszlikowski, Dagomir; Sen(De), Aditi; Sen, Ujjwal; Vedral, Vlatko; and Winter, Andreas. “Quantum Correlations without Classical Correlations. Physical Review Letters 101, 070502 (2008).Copyright 2008 PhysOrg.com. All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of PhysOrg.com. 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.