Impress your friends and family by creating your own 3D face. It's easy and funny. Once the 3D face is created you can use it in yahoo messenger or in any other online profile picture such as gmail, myspace, orkut, yahoo etc. You can also create 3D face of your friends, family members or favourite actor/actresses. Try it your self, it will be fun.
Try this technique to calculate square of 2 digit number to any large number. Well after some practice you will be able calculate square of large number without writing long calculation.