I think flowing sand is not fluid....because the basic property of the fluid is viscosity, though the sand layers flow over each other, it can't be said that it is...

Re: help me @Ash..If you can provide good information here..I'd like to make the basketball playing robo..for sure..

@ abyss and @ xheavenlyx.. Hello friends, i am also looking to run a stepper motor using the parallel port.. i have bit idea of stepper motor operation . i...

@ abyss and @ heavenly.. Hello friends, i am also looking to run a stepper motor using the parallel port.. i have bit idea of stepper motor operation . i...