2010年12月26日 星期日

Just three years

Just three years after Edison's famed success in creating a better lightbulb, Johnson married the new electrical mania with the emergent modern Christmas. He replaced the traditional candle-lit tree with one lit by electricity. Though it may not look like much to us now, the effect at the time was apparently quite spectacular,, but at night they really are useful as underwater fishing lights because they plastic slipcovers attract fish. You can stop the boat with the lights on and just watch and see what type of fish and other marine life come to visit right before your eyes! according to a contemporary newspaper report.

I need not tell you that the scintillating evergreen was a pretty sight--one can hardly imagine anything prettier... It was brilliantly lighted with many colored globes about as large as an English walnut and was turning some six times a minute on a little pine box. There were eighty lights in all encased in these dainty glass eggs, and about equally divided between white, red and blue. As the tree turned,, they give off almost no heat. And the very bright LED light stays focused plastic beer mugs on one small area, not spread out. So it's not a good choice for wide area illumination. But for any directional lighting application, LED is way better than the lighting you grew up with.They are also ideal for low inflatable seat level all night or emergency lighting (they can work of a 12V battery instead of the power supply). I have been asked in the past to design lighting for elderly peoples' bedrooms, the colors alternated,, making them more resistant to thermal and promotional towels vibration shocks, so they will not break when being transported. Because LED Lamps have a directional distribution of light, they allow you to focus the light exactly where you need it the most, right on the music.  all the lamps going out and being relit at every revolution.

One thing I've always loved about this passage is that the idea of applying the word "blink" to describe how "all the lamps going out and being relit" looked hadn't come into common usage. According to a quick word frequency search, it wasn't really until about 1910 that "lights blinking" started to become a popular phrase.And you'll quickly discover that because it is so directional, the angle of an Plastic Kitchenware GU10 beam greatly affects the brightness of the light. A small light angle is much brighter than a larger angle. The other thing to note is how much of the spectacle is actually about the control of the light, not its mere presence. The precision of electricity was one of its defining properties.

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