Light grey and other light shades on white or another light color are purely evil for some of us. I simply can't read it. Ask some older folks to check your choices on a variety of monitors before feeling everyone should just love licorice-exlax ice cream just because you think it tastes great.

It would be nice if people would try these combinations on a variety of monitors without tweaking to see that what is acceptable on some, is actually non-existant on others. I was actually blown away when I saw that one of Google Maps' decontrasting moves actually had roads on some monitor setups. 

I personally would fail about 3/4 of the images avi posted above as being too much strain to bother.

Which color scheme to choose for applications that require long work hours?
The formula for parrallel resistors is $\frac{1}{R_T} = \frac{1}{R_1} + \frac{1}{R_2}$

But how can you use this formula when one of the branches is a superconductor, eg:


Where the red resistor represents a wire with some resistance and the blue line represents a superconducting wire, how can the above equation be used to find the resistance between A and B, as it would mean dividing by zero?
