Physics Crossword
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
 
 
Down: 1) Keeps the image's grayscale content within the range of detection of the human eye.2) Changes the electrical signals within the receiver into a form suitable for CRT display.3) Converts all the negative voltages into positive voltages. Across: 4) Allows for control over whether low-level grayscale information will appear on the displayed image.5) Correcting for attenuation, allows image to be made uniform in brightness.6) Makes returning signal larger, equally.7) Places a smooth line around the "bumps" and evens them out.
 

 

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