Wikipedia lovers, you can get a random page from the 'pedia to just show up automatically on your PC with the Wikipedia Screen Saver. Sometimes you get pretty empty pages in need of work, other times you learn something pithy and new without lifting a finger. Choose Wikipedia from the screen saver drop-down in Display Properties after you install it. [via Ghacks]
Wikipedia Screen Saver
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Speculative fiction is the literature of change and discovery. But every now and then, a book comes along that changes the rules of science fiction for everybody.
I drive a lot of different vehicles when I need to get around, but I'm always a little worried when it's time to fill them up. Will something happen if I use 91 instead of 95, or vice versa? This thread at StackExchange answers the question.