Wednesday, May 21, 2014

Học Để Thi

Học Để Thi

World Cup Preview: Colombian Knee the Key to Group C

Posted: 21 May 2014 01:14 AM PDT

Colombia's Radamel Falcao, left, celebrates with teammate Pablo Armero after scoring during a 2014 World Cup qualifying soccer match against Paraguay in Barranquilla, Colombia, Friday, Oct. 12, 2012 This is the third post in a series previewing the World Cup's eight groups. Read Group A and Group B; then check back later this week for looks at groups D, E, F, G and H. The 2014 World Cup's

The Fun Switcher: Because You're Not Working Anyway

Posted: 20 May 2014 11:17 PM PDT

BY ANDREA ROMANO Feeling a little too productive? Here's a website that captures two of life's greatest pleasures: procrastination and the tactile satisfaction of turning light switches on and off. Since flicking your real light switch will drive everyone around you up a wall, you can useThe Fun Switcher to do the exact same thing — with the added bonus of controlling a variety of sound

This is London Calling, We're the Selfie Capital of the World

Posted: 20 May 2014 11:15 PM PDT

You can't walk around a big city without seeing someone snapping a selfie. The selfie trend gained increasing popularity over the last few years with front-facing cameras and Instagram filters that make anyone look good. It's dominated social media, influenced pop culture and even reached space. A quick search of the hashtag #selfie on Instagram delivers more than 116 million results. We

Artist's Fanciful Face Paint Transformations Bend Reality

Posted: 20 May 2014 11:16 PM PDT

'Game of Thrones' White Walker Face paint isn't just for carnivals anymore — it's an art form in its own right. Elsa Pageler proves this with her amazing ability to use face paint and makeup to make herself look like absolutely anything — from your favorite video game character to a creature from your Halloween nightmares. Her facial creations will leave you unsure what if you're looking at a

Xác xuất - Mai Đặng

Posted: 20 May 2014 11:09 PM PDT

1 lớp gồm 4 sv đã tốt ngiệp đại học và 12 sv chưa tốt nghiệp đại học và dc chia thành 4 nhóm,tính xác suất để mỗi nhóm có 1 sv đã tốt nghiệp đại họcGiải:ở đây Thầy hiểu theo cánh là mỗi nhóm có duy nhất 1 em học sinh đã tốt nghiệp đại học nha. (còn bài toán có ít nhất 1 hs đã tốt nghiệp đại học sẽ khác)Tổng số chọ sinh của lớp là: 4+12=16 học sinh.Chia thành 4 nhóm thì mỗi nhóm có 4 người.Số cách

Hình Học 9- Huy Phan

Posted: 20 May 2014 10:53 PM PDT

Cho ∆ABC vuông tại C, có BC =1/2 AB. Trên cạnh BC lấy điểm E (E khác B và C). Từ B kẻ đường thẳng d vuông góc với AE, gọi giao điểm của d với AE, AC kéo dài lần lượt là I, K.a. Tính độ lớn góc .CIKb. Chứng minh: KA.KC = KB.KI; AC2 = AI.AE – AC.CK.c. Gọi H là giao điểm của đường tròn đường kính AK với cạnh AB. Chứng minh: H, E, K thẳng hàng.d. Tìm quỹ tích điểm I khi E chạy trên BCGiải:<![if !

Japan's Uniqlo Lets You Design Your Own T-Shirts via Smartphone

Posted: 20 May 2014 09:16 PM PDT

Japanese apparel maker Uniqlo is no stranger to integrating technology into its unique marketing campaigns. But a new promotion goes several steps further by allowing consumers to design their own clothes, using a smartphone app. Dubbed UTme!, the app enables users to take a photo, type text or draw a design, then have that design uploaded to the Uniqlo website, and placed on a shirt they

10 Startups to Watch in 2014

Posted: 20 May 2014 06:14 PM PDT

If you only focus on the multi-billion dollar valuations of young companies like Pinterest, Uber and Snapchat, you might assume 2013 has been a very good year for tech startups. In reality, it has been more of a bittersweet year. Many early-stage companies struggled to raise a Series A rounds of funding, a phenomenon commonly referred to as the "Series A Crunch," which for some meant to fight

Apple Pursues Controversial Deals with ISPs to Pay for Better Service

Posted: 20 May 2014 06:15 PM PDT

A Comcast Network Technician works on an Xfinity WiFi hotspot on Lee Street in Des Plaines, Ill. The company is rolling out its own content delivery network that will make it an even bigger part of U.S. Internet infrastructure. Apple is negotiating to connect its growing network of servers with Internet service providers, a move that would provide the company with better connections for

MakerBot's Replicator Mini 3D Printer Starts Shipping

Posted: 20 May 2014 06:10 PM PDT

First teased at this year's CES conference, the MakerBot Replicator Mini has finally started shipping to consumers in the U.S. and will be available in-store later this week. The compact unit weighs just 18 pounds and stands a mere 15-inches high. It constitutes one of the best attempts yet at a truly mainstream 3D printing device for the home. SEE ALSO: 3D Printing: Everything You Need to

FedEx Launches Unit to Serve the Space Industry

Posted: 20 May 2014 06:08 PM PDT

The sky is no longer the limit for FedEx. The company on Tuesday announced its intention to capitalize on the burgeoning commercial space industry. Don't expect to see a FedEx-branded rocket launching anytime soon, though. The venture, called FedEx Space Desk, is designed to be a "one-stop shop for space industry customers." The new unit will provide information about shipping everything from

How the Surface Pro 3 Compares to the MacBook Air

Posted: 20 May 2014 06:07 PM PDT

The MacBook Air is weighed against the Surface Pro 3 at a Microsoft event in New York City. In case you missed it, Microsoft just announced the latest member of its Surface tablet family, the Surface Pro 3. Microsoft is dubbing the Pro 3 "a tablet that can replace your laptop," and positioning it against the thinnest, most portable notebook on the market — the MacBook Air. Throughout the

Tesla to Deliver Model S to UK Drivers, Expand European Supercharger Network

Posted: 20 May 2014 06:05 PM PDT

\Tesla founder Elon Musk at the new Tesla showroom at the Westfield Stratford City retail complex in London, U.K. on October 24, 2013. Tesla is set to deliver the "right side drive" version of its Model S electric vehicle in the U.K. starting next month, opening a new chapter in company founder Elon Musk's mission to push electric cars into the global mainstream. Since October, U.K. drivers

Iran Police Arrest 6 After 'Happy' Video Featuring Women Without Hijabs Goes Viral

Posted: 20 May 2014 06:04 PM PDT

A screenshot taken from a copy of the YouTube video thatgot at least six Iranians arrested. Iranian authorities arrested on Monday at least six people who starred in a viral YouTube video that shows them dancing to Pharrell Williams' "Happy," according to multiple reports. In the video, three men and three women without hijabs are seen dancing to the hit song in an apartment and on a Tehran

'The Voice' Will Incorporate Tumblr Animations in Finalist's Performance

Posted: 20 May 2014 06:01 PM PDT

Christina Grimmie performs May 12 on The Voice. The Voice will use animations from a so-called Tumblr artist during finalist Christina Grimmie's performance of Lorde's "Team" on Tuesday night. The graphics, created by Tumblr user Cindy Suen, will appear on screens behind Grimmie well before host Carson Daly announces the season six winner. The Voice is trying this new visual approach at a time

Box Rolls Out Faster Android App With Free Storage for Some Users

Posted: 20 May 2014 06:00 PM PDT

Earlier this year, Box unveiled a series of new tools for developers, including new and faster ways to display documents. Now it looks as though the company is expanding some of those features beyond its enterprise customers. Box rolled out a major update to its Android app Tuesday, adding improved image galleries and search tools, a new document viewer and free storage for some users. SEE

Will Smith Helps Woman Put Your Pregnancy Announcement to Shame

Posted: 20 May 2014 05:58 PM PDT

Yo pregnant folks, smell ya later— the Fresh Prince of Bel Air just kicked your baby announcement's butt. Reddit user yogaposer shared this image to r/pics, showing off her pal Emily's super fresh baby announcement featuring Will Smith. Since appearing online late Monday night, the post has more than 3,200 upvotes and 1,000 comments. It's still a mystery how Emily managed to snag

Adobe Shows Off Touch-Optimized Photoshop CC for Surface Pro 3

Posted: 20 May 2014 05:57 PM PDT

Michael Gough, VP of design experience for Adobe, shows off the new touch features of Photoshop CC for the Surface Pro 3. At Microsoft's Surface Pro 3 launch event, Adobe showed off a sneak peek of a new touch-optimized version of Photoshop CC. Michael Gough, the VP of experience design at Adobe, took the stage to show off how Photoshop CC works on Microsoft's latest tablet. The big news

Earth Just Tied for Its Warmest April on Record, NOAA Says

Posted: 20 May 2014 05:56 PM PDT

The Washington state Capitol is seen through tulips on a sunny day in Olympia, Wash., on Thursday, May 1, 2014. Temperatures in the state were expected to be in the 80s again during a week where records were already set in some cities. April 2014 tied with the same month in 2010 for the distinction of being the warmest April on record globally, with an average global temperature 1.39 degrees

Oculus Rift, Coming to a Chuck E. Cheese's Near You

Posted: 20 May 2014 05:55 PM PDT

Peter Mason tries the Oculus virtual reality headset at the Game Developers Conference 2014 in San Francisco, Wednesday, March 19, 2014. Is this Facebook's plan to win back younger users? Chuck E. Cheese's, the restaurant chain known for its appeal to the under-10 demographic, announced Tuesday it will begin offering an Oculus Rift experience at about 16 of its locations. The chain will

Hands On With the Surface Pro 3

Posted: 20 May 2014 05:54 PM PDT

The original Surface Pro and Surface Pro 2 were supposed to be laptops in tablet form, but it was a false promise: Although the products performed well, they still had compromises. Microsoft's new Surface Pro 3 aims to eliminate those issues — or at least reduce them to point where they don't matter. The design is a good step in that direction. One problem with tablets that also want to be

16 Hilarious Reactions to Pat Sajak's Nutty Climate Change Tweet

Posted: 20 May 2014 05:52 PM PDT

Pat Sajak, host of the popular television game show "Wheel of Fortune," is seen at the San Francisco Giants baseball game against the Los Angeles Dodgers in Los Angeles, Thursday, Aug. 2, 2007. Twitter learned that Pat Sajak, the host of Wheel of Fortune, is a climate-change skeptic on Tuesday. Late Monday night, the 67-year-old game show host boldly tweeted that he believed "global warming

Ryan Gosling's Movie Got Booed, Yes — But the Applause Was Louder

Posted: 20 May 2014 05:47 PM PDT

Ryan Gosling at a photocall for his film "Lost River" at the Cannes Film Festival. The applause was louder than the boos. Don't let anyone tell you differently. I was there, in the center of the orchestra, for the first screening of Ryan Gosling's whacked-out psycho-sexual drama Lost River at the Cannes Film Festival. And, yes, some people jeered, but the whole theater was not in revolt. In

'Watch Dogs' Trailer Pranks People by Hacking Their World

Posted: 20 May 2014 05:45 PM PDT

BY ANDREA ROMANO What would happen if your phone could hack any system? You could have any car, tons of cash and cause utter chaos anywhere you went. That's exactly what Ubisoft, the makers of the video game Watch Dogs, want you to do. In their prank trailer, a shopkeeper takes unsuspecting customers on a thrilling adventure through the street with their newly refurbished smartphones to try

Emma Thompson: Twitter, Facebook Will Kill a Generation

Posted: 20 May 2014 05:43 PM PDT

Flying away from social media: Emma Thompson at the Empire Awards in London in March. Which would you rather do: peruse social media and search engines, or undergo major dental surgery? If you chose the former, that puts you on the opposite side of the fence from Emma Thompson, according to Vanity Fair's latest interview with the beloved actor. "I'd rather have root canal treatment for the
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