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Question: Why Do Leaves Change Color in the Fall?   Answer: When leaves appear green, it is because they contain an abundance of chlorophyll. There is so much chlorophyll in an active leaf that the green masks other pigment colors. Light regulates chlorophyll production, so as autumn days grow shorter, less chlorophyll is produced. The decomposition rate of chlorophyll remains constant, so the green color starts to fade from leaves.             At the same time, surging sugar concentrations cause increased production of anthocyanin pigments. Leaves containing primarily anthocyanins will appear red. Carotenoids are another class of pigments found in some leaves. Carotenoid production is not dependent on light, so levels aren't diminished by shortened days. Carotenoids can be orange, yellow, or red, but most of these pigments found in leaves are yellow. Leaves with good amounts of both anthocyanins and carotenoids will appear orange.             Leaves with carotenoi

IBM to revise hiring process IBM has agreed to pay $44,400 in civil penalties to settle allegations that certain of its online job postings preferred foreign workers with temporary work visas over US citizens, the US Department of Justice said. IBM had placed certain online job postings for application and software developers that contained citizenship status preferences for F-1 and H-1B temporary visa holders, the Justice Department said in a notification posted on its website late on Friday. F-1 visas are issued to overseas students studying in the United States, while H-1B visas are provided to foreign nationals with technical expertise in specialized fields. The Justice Department said the job ads violated the anti-discrimination provision of the Immigration and Nationality Act (INA), which states employers may not discriminate on the basis of citizenship status "unless required to comply with law, regulation, executive ord

Microsoft announces Imagine Cup 2014 competition    Microsoft India has announced the launch of Imagine Cup 2014, inviting applications from student software developers. Currently in its twelfth year, Imagine Cup is a global student technology programme and competition that provides opportunities for students across all disciplines to team up and use their creativity, passion and knowledge of technology to create applications, games and integrated solutions that can change the way we live, work, and play. Registration for the Imagine Cup is now open on www.imaginecup.com with a chance for outstanding  ideas to compete at Seattle, US, where the worldwide finals will be held next year, and win a grand prize of US $ 50,000. Microsoft Imagine Cup is often referred to as the 'Olympics of Technology,' and is the largest student technological competition in the world. Indian student developers have vastly cont

Apple launched the iPhone 5S with three new technologies - the 64bit A7 processor,  Touch ID fingerprint scanner and M7 motion co-processor. While it is widely expected all three technologies (or better versions of the same) will be used in the next-generation iPad, a recent rumour is that Apple will also introduce them in iPad mini 2. Sonny Dickson, the teenager who is credited for numerous Apple leaks, has tweeted that the next-generation iPad mini will come with A7 processor featuring 64bit chipset architecture, M7 chip, Touch ID fingerprint scanner and 1GB RAM. This will be a major upgrade for the iPad mini product line, considering the current model has a three year old A5 processor and 512MB RAM. iPad mini's base variant costs $349 at present, making it the cheapest Apple tablet across all screen sizes. He also tweeted that the next iPad mini model will come in three colours - black, silver and gold. At present, iPad mini only comes in black and white colo

Top 10 Programming Languages that could get you a job Being new to programming many would have questions as to which languages to learn in order to be picked up by employers. Here is the list of top 10 programming languages that could get you employed. Java JAVA remains the top language in the enterprise with tons of applications to be supported across the world C#.net Becoming the primary development language for Windows Phone 7 and its support through the Visual Studio tools suite make C# a formidable contender in the programming language race. C/C++ Though sometimes viewed as a niche, C++ is widely used in the software industry. Some of its key application domains include systems software, application software, device drivers, embedded software, high-performance server and client applications. Javascript with CSS and HTML JavaScript is the language of the Web. It powers all of the popular Web browsers and that says it all. Visual Basic With ease of use as a selling point,

Prem Watsa confident of BlackBerry deal Add caption Fairfax Financial chief executive Prem Watsa said he is confident the consortium he leads can find the money to fund its $4.7 billion bid for smartphone maker BlackBerry. "We wouldn't put our name to such a high-profile deal if we didn't feel confident that at the end of the day that our due diligence would be fine and we'd be able to finance it," Watsa said in an interview. The Canadian-led consortium put in its $9 a share bid for BlackBerry on Monday, arguing that the troubled company would have better chances as a private entity, away from Wall Street's constant gaze. The company pioneered mobile email communications but has lost ground to Apple iPhone and other snazzier rivals, BlackBerry shares closed a full dollar below the bid price on the Nasdaqon Wednesday, indicating that investors were skeptical the deal would succeed. The stock edged up to $8.0