Abstract: We make door locks which has a receiver it can be locked or opened via receiving a password as long sequence of numbers when transmitted to it from the cellular phone where each lock when it is sold a plastic card comes with it containing password when we scratch and reveal the password and we input it in the cellular phone and save it, then the door lock will open when we press a button on the cellular phone and will be locked when we press the button again, as well the cars come with a plastic card and the same is done as explained before so by the cellular phones we can lock and unlock the car, the same can be done for the garage gate and office doors, ATM card will be replaced by a password saved in the cellular phone as explained above.

Abstract: Four wide frames are fixed to a vertical axis. The frames have horizontal bars ten centimeters apart. On each horizontal bar, a sheet of cloth twenty centimeters high and as wide as the frame is hung such that the sheets of cloth are all on the same side of the frames so that when the wind blows from any direction, the windmill rotates in the same direction. For frames facing the wind direction, on one side of the axis, the wind will blow the sheets of cloth away from the frame, and the wind will pass through the frame. On the other side of the axis, the wind will blow the sheets of cloth, but the horizontal bars will stop them from blowing to the other side of the frame such that the sheets of cloth stick to the frame and prevent the wind from passing through. The frame on that other side will act like a big sail.

Abstract: On a vertical axis we fix four wide frames the frames have horizontal bars the distance between them ten centimeters on each horizontal bar we hang a sheet of cloth its length twenty centimeters and its width is the width of the frame, all frames should have the sheets of cloth on the same side, when the wind blows from any direction the windmill rotates in the same direction, since the frames which are facing the wind one of them the wind will blow the sheets away and passes through the frame while the frame on the other side of the windmill the wind will blow the sheets of cloth but the horizontal bars stops them from blowing to the other side of the frame so they stick to the frame preventing the wind from passing through so all the frame will act like a big sail.

Abstract: We make door locks which has a receiver it can be locked or opened via receiving a password as long sequence of numbers when transmitted to it from the cellular phone where each lock when it is sold a plastic card comes with it containing password when we scratch and reveal the password and we input it in the cellular phone and save it, then the door lock will open when we press a button on the cellular phone and will be locked when we press the button again, as well the cars come with a plastic card and the same is done as explained before so by the cellular phones we can lock and unlock the car, the same can be done for the garage gate and office doors, ATM card will be replaced by a password saved in the cellular phone as explained above.