How Fluorescent Lights Work

[Chicagocoinop]

Very cool. 

[genteunidamx]

This is fucking sweet

[theraefy]

where can i buy that powder online?^_^

[reachtt]

I like this guy! :-) 

[eyecanthelpit]

i thought the first florescent light was made in 1909

[bestamerica]

'

how about a strobe flasher light

[mihaitudosa]

Very educative!

[MrDan131]

...

[dieselducy]

where did u get the powder??

[ladymargof]

why would you want to limit the current (ie ballast)?

[bamaslamma1003]

@ladymargof Because gas discharge lamps, the family of lamps to which fluorescents belong, exhibit a property called "negative resistance." They cannot self-limit the current flow through them. Without a ballast, so much current would flow that the lamp would self-destruct.

[domyaska]

thanks a lot !! very kind from you sharing this video

[caleb836]

oh so thats how a CFL Street light works

[ac120479]

...

SWEET RAVE PARTY!!!

[GingleGangle1]

Could u show the spectrum of the lamp?

[TheGeek1028]

This kind of fluorescent lamp is called a germicidal lamp, by the way. In simplest terms, a clear fluorescent lamp.

[Barti81]

This lamp is emitting an UV-C range ultraviolet radiation. UV-C radiation is very dangerous for the eyes and skin!

[slaterking1000]

wud the coating prevent the UV from passing thought he glass tube?

[thanddProgram]

@slaterking1000 i guess as he said it is fourescent, it would absorb the uv, and emit the visible light

btw i think by far you would have got your answer :D

[dnl5649]

@slaterking1000 yes it does

[HappyDiscoDeath]

@slaterking1000 yup. the powders, one mixed and applied in a coating (making the tube opaque) absorb the UV light produced by the tube and release it as much less toxic visible light. however, a tube like the one shown here is used for disinfecting; hospitals, for example. it just can't be used casually as ambient lighting because of the potent UV-C; give you some skin cancer!

[Diametrac]

Can you eat that powder?

[form109]

now that was a Illogical Question,of course you cant eat it.

[AzBirdDog]

@Diametrac lol

[josedro]

@Diametrac you really made me laugh buddy

[rochix77]

@Diametrac You Cant eat that powder AND THE MERCURY of course because you will DIE;)

[tuberlook1]

@Diametrac You can eat anything. surviving it is the problem.

[youtuubecamt]

@tuberlook1 Oh, really? I'd like to see you eat a bowling ball then. :P

[ydnab]

@youtuubecamt - Just need a hammer and chisel. and don't say that doesn't count, it's just the bowling ball equivalent of a knife and fork :P

[youtuubecamt]

@ydnab Well put, you win.

[Damienkelly84]

@tuberlook1 ever see a man eat his own head?

[GrimDane]

@Diametrac Unless you wanna glow the whole day, then yea. Hell make your chocolate milk seem more interesting

[mrcrtking]

@Diametrac No and I would not recomend snorting it either !!!!! (o:

[bliz0123]

@Diametrac that depends will you eat mercury powder because that's what it is

[oromero24]

If I remember...the mercury in the lightbulb is about as much as the tip of a pen...but i looked up a much smaller one...hehe...

[cod2maz3]

Mercury vapour? Hello, anyone hear that part?

[TheGeek1028]

IN the bulb.

[feisal70]

just what i was looking for. excellent video!

[CaptainElevator42189]

But probably a very bright white light.

[CaptainElevator42189]

I wonder what would have happened if the phosphors were all mixed together in a jar.

[cory2466p]

nothing but different color

[TheVolle]

Alright! Awesome to know :D

[cghcom]

very nice video and a good explanation.well done mr.professor!!