My oldest CFLs are from late 90s. I have been mostly CFL since 2007 and in autumn last year I put CFLs even in the "unsuitable" areas like bathroom/toilet (frequent on/offs). I have yet to meet my first failed CFL. It kinda sucks because those old Phillipses from the 90s lost a lot of intensity but they refuse to die and I'm reluctant to throw away a working light bulb. I only buyed Phillips then switched to Osrams circa three years ago when some of the newer Phillips bulbs seemed cheaply made (they made bad plastic smell when heated). Even within the brand you will probably find cheap (==low quality) models. I never buyed any other brands. I also noticed that the ones I buy tend to be among the most expensive on the market.
You can understand carbon storage as a shorthand for "freeing up the oxygen" (I've probably never seen this term used before). From this point of view fossil fuels don't really differ from limestone -- both are geological structures which contain a lot of carbon a store it "indefinitely". Of course the limestone will one day be recycled in the mantle and we burn the fossil fuels like there is no tomorrow.
The glass in my model starts luminescing when exposed to UV or near-UV light (405 nm laser does this very well). The luminescence is white-ish and possibly due to scattering goes out even from part of the glass which is not directly illuminated. To an unprepared observer, the effect might look like "foggy" vision.
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My oldest CFLs are from late 90s. I have been mostly CFL since 2007 and in autumn last year I put CFLs even in the "unsuitable" areas like bathroom/toilet (frequent on/offs). I have yet to meet my first failed CFL. It kinda sucks because those old Phillipses from the 90s lost a lot of intensity but they refuse to die and I'm reluctant to throw away a working light bulb. I only buyed Phillips then switched to Osrams circa three years ago when some of the newer Phillips bulbs seemed cheaply made (they made bad plastic smell when heated). Even within the brand you will probably find cheap (==low quality) models. I never buyed any other brands. I also noticed that the ones I buy tend to be among the most expensive on the market.
You can understand carbon storage as a shorthand for "freeing up the oxygen" (I've probably never seen this term used before). From this point of view fossil fuels don't really differ from limestone -- both are geological structures which contain a lot of carbon a store it "indefinitely". Of course the limestone will one day be recycled in the mantle and we burn the fossil fuels like there is no tomorrow.
The glass in my model starts luminescing when exposed to UV or near-UV light (405 nm laser does this very well). The luminescence is white-ish and possibly due to scattering goes out even from part of the glass which is not directly illuminated. To an unprepared observer, the effect might look like "foggy" vision.