Daylight saving was first introduced by European countries during World War I, with much of the U.S. joining the party in 1918. The idea was that more hours of daylight would "conserve coal for the war effort.
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.
Some web pages have the Save image As... option disabled on a right click when you try to save an image. Let me show you how to get that image anyway using Firefox.
You can add more than 500 Hollywood style filters to your Vimeo video projects. The Looks is the latest addition to their online video editing tool called the Enhancer.