The Implications of Aesthetics
It took decades for the problem to be discovered, and once it happened (in 2002), it struck us all as so obvious and trivial we wanted to bang our heads on the keyboard a couple of times.
Joe Lughry and David A. Umphress, in a research paper titled “Information Leakage from Optical Emanations,”[63] discovered a new type of signal-disclosure scenario in certain types of network equipment, most often modems. They concluded that someone observing these lights could go beyond simply watching the magic lights with the naked eye.
LEDs, unlike incandescent bulbs, usually have short rise and fall times, meaning that they turn on and off almost instantly. That’s not surprising; after all, high-end LEDs are used to control fiber-optic ...
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