The invention relates to the novel cotton variety designated 779020G. The signal can be modified employing signal shaping, signal clipping, signal decomposition or other techniques to remove peaks associated with the signal. The robot may be controlled by a remote control station that also has a camera and a monitor. Associate the detected changes between the images and classifying the associated changes. A ball bearing is disposed between the two discs. Further, the tank can include at least two sidewalls extending such that at least in one cross-section taken along a plane perpendicular to said top portion, at least two of the sidewalls form a general V-shape converging towards the bottom portion.