Have you ever wonder how small is a paramecium or how big is a whale? You can now compare them by using a cool flash app, the Universcale. By then, you will know how small humans are compared to the Sphinx and how big humans are compared to the AIDS virus. Now that you know the size of things, but it might not be useful if you don’t even know what the hell is that. Click on the object and there will be an explanation for you. Pretty neat educational flash.

via Geekologie