Glass Box Contains the Ghost of the Incandescent Lightbulb  E-mail
Written by Hank Green   
Thursday, 26 October 2006

globri_alt1This Halloween, celebrate the death of the incandescent lightbulb with a GlowBrick. These glassy cubes each contain a phosphorescent core surrounded by the image if a lightbulb. They spend the daylight hours collecting energy and then, in the night time, they become "a disembodied shining lightbulb hanging in midair." Maybe incandescent bulbs will all die, only to show up around Halloween as glowbricks.  Maybe not. But while the glowbrick is cool, it isn't really all that useful.  But maybe someday you can use one to show your grandkids what light bulbs used to look like. 
 
If you're interested in that kind of entertainment, then head to the Science Toy Store, but keep in mind that it'll set you back about $40. 

Comments (3)add
Temporal obsessions
written by GTW , October 29, 2006
People praised the incandescent lights over candles and gas lamps when it came out just like how people praise the mainstream LEDs over incandescents.

It's only a matter of time when the world population gets higher and even LEDs aren't going to be enough to save energy. Then some other type of light source will come about and the people who're eco-bloggers then will bad mouth the LEDs...

If we step out of this current time frame and just look at how people think in general, it's just funny. The moral of the story is... It's obvious that better things will come about, so there's no need to praise or condemn anything since we know nothing is here forever.
Unsurprisingly Disagreeing
written by Hank , October 29, 2006
But the time is now. I'll be there condemning LEDs too, when time comes. And I'll gladly praise fossil fuels over whale oil any day. But, right now, LEDs and CFLs are the best we can do, so we need to praise them. We need to encourage people to buy them and encourage companies to develop them. And we, ourselves, need to be open to these new things so we can celebrate when another step is taken.

But it's not the first step, and we probably don't acknowledge that enough. But, more importantly, it's also not the last step, and hopefully, it never will be.
Just to let you know
written by Fria , October 29, 2006
As far as energy efficiency, the fluorescent bulb is still the king. It gives out more light per energy input than even LEDs, which really aren't that efficient. In order for LEDs to give off enough light to make them practical, they tend to be over driven. That causes them to create a lot of heat which is wasted energy. LEDs good points tend to be their ruggedness, more accurate white color and life expectancy.

As far as this glow bulb is concerned, for now it's just a toy. But I have heard of some new technology that seems to combine LEDs with a phosphorescent coating that creates even more light than either does separately. But, I can't recall the specifics.
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Hank Green
About the author:

Hank Green is the founder and chief geek at EcoGeek.org. Aside from being obsessed with saving the planet with technology, he loves to write and make videos. If you want to find out more about him, visit hankgreen.com

 
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