electronic things then and now
(Warning: Technical computer terms used here). With electrical devices getting more complicated than what it was a decade ago, or even 5 years for computers, the "feel" of using them is somewhat different. Back when CRT TV was very common, the process of turning it on would produce some high-pitch sound before the channel you selected or last viewed appears fading in from a blank screen. When turning it off, I would see a flash of white light on the screen before it goes blank. Compared to today's more common LCD , LCD seems to lack these things, but is more pleasing on the eyes, takes up lesser space and consumes less electricity than the CRT counterparts. Speaking of changes, traffic lights and information displays like the route info on a bus have been replaced with LED displays (flip-dot for some of the earlier ones). For the latter, it previously used plastic signs that allow light from behind to illuminate it when it's dark. But the LED ones looks funny: could...