If you don't have installed program for editing PDF documents on your computer, then you can use web application PDFescape which allows you to edit your documents in your browser.
Remember as a kid you played with a mirror, putting your face to the side of it and your friends were laughing at the funny symmetry of your face and your faces reflection?
Talking about awesome coincidences... A GoPro camera fell from a plane carrying sky divers and lands in a pig pen! This guy finds it 8 months later and posts it on YouTube.
India has achieved several great scientific achievements in the short span of its post-independence history. Go throught this short quiz and find out how good do you know Indian scientists.