2007-11-10 22:20:18 · 10 answers · asked by doodle_bug 2 in Science & Mathematics ➔ Physics
pretty ricky if you were so smart why didnt you answer the question?
2007-11-10 22:29:20 · update #1
Helix (Coil) bulbs are more energy efficient
Details
Watts: 15
Life: 8,000 hours
Voltage: 120.0
Brightness: 1,100 lumens
2007-11-10 22:30:26 · answer #1 · answered by mit 2 · 0⤊ 0⤋
With fluorescent bulbs (like energy-saving bulbs and those long strip lights you tend to see in schools/hospitals, the total surface area of the bulb is very important - the more the area, the more light can be emitted.
The glass also always needs to be a certain distance from the filament (the metal wire inside) so the best amount of fluorescent gas is 'lit up'
The most efficient way of lighting the room (the way that needs least energy) is to have a long thin tube of lighting (like in schools/hospitals), but coiled around into a tight shape (so a lot of light comes from a small space)
2007-11-11 06:47:08 · answer #2 · answered by btomkins88 2 · 0⤊ 1⤋
its because they are a miniature tube light, they need to be connected to a power source at both ends of the tube to excite the atoms. a tube light contains a small bit of mercury and an inert gas, typically argon, kept under very low pressure. The tube also contains a phosphor powder, coated along the inside of the glass. The tube has two electrodes, one at each end, which are wired to an electrical circuit, this excites the atoms and makes it glow. so they must be in a u shape, you see very easy!
the more light you want form them i.e 40w, 75 w the bigger they are, that's the downside of low energy bulbs.
2007-11-11 06:29:03 · answer #3 · answered by *mental*MooCow* 5 · 2⤊ 2⤋
The shape you feel serious may be funny to others.The shapes are accepted by the manufacturers after a very long scientific research.
2007-11-11 06:38:22 · answer #4 · answered by Joymash 6 · 0⤊ 0⤋
To save energy.
2007-11-11 06:23:04 · answer #5 · answered by ? 5 · 0⤊ 2⤋
If you had never known anything else, you would ask the same about a conventional light bulb.
2007-11-11 06:23:07 · answer #6 · answered by fred35 6 · 0⤊ 3⤋
Because they are flourescent tubes wrapped into a tight bundle.
2007-11-11 06:25:01 · answer #7 · answered by Anonymous · 5⤊ 0⤋
I have come to the conculusion that anything good for you, or good for the environment is funny looking :-)
2007-11-11 06:34:08 · answer #8 · answered by gypsy 5 · 2⤊ 1⤋
i have no idea but have wonderd this my self ..they can be annoying because they are so long they sometimes don't fit into lampshades nicely or stick out ,,,
2007-11-11 06:24:27 · answer #9 · answered by CHRISTINA 3 · 0⤊ 2⤋
they are made that way so they can be more ennergy
efficient, use less electricity, and last longer.
good question.
2007-11-11 06:24:31 · answer #10 · answered by Jerry S 7 · 0⤊ 3⤋