Posted in cool Google ngrams November 24, 2011 http://books.google.com/ngrams/graph?content=pollution&year_start=1800&year_end=2000&corpus=0&smoothing=3 Views : 995 Related Articles Posted in cool Evolution of video game controllers Posted in animation cool Pixar’s Zoetrope Posted in cool The Bitcoin Ecosystem Posted in cool ocean in a bottle Posted in cool Govee Ambilight TV setups Posted in cool modeling reference Human cell model Posted in colour cool Mysterious animation wins best illusion of 2011 – Motion silencing illusion Posted in cool wifi detector mechanics