Outside the 2..7 range, there is no spectral order. (Black, brown, grey, and white are not part of the spectrum in the usual sense.) Still, the idea makes some sense. But most floating-point formts are sign-magnitude, and I see no reason this would be different - perhaps the body should be a different colour? Also see xkcd cartoon #227. A negative-resistance resistor would be a very peculiar device. (Not the same thing as a device with a negative-slope portion of its current/voltage characteristic, which is spoken of as negative resistance but is only *incrementally* negative....) Connect a capacitor and nothing happens, unless it's already charged, in which case it gets charged more and more until something breaks. /~\ The ASCII der Mouse \ / Ribbon Campaign X Against HTML mouse at rodents.montreal.qc.ca / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B