First Change to the Lightbulb since Edison - GoFuckYourself.com

jacked · 06-04-2004, 08:27 AM

Chinese scientists working in collaboration with Louisiana State University have demonstrated a light bulb in with a carbon nanotube filament. As well as being the only real change in design in the last 125 years, the nano-filament bulb has several advantages over traditional tungsten.

Firstly, the researchers, lead by Tsinghua University's Jinquan Wei, found that the nano-filament emitted more light than tungsten at the same voltage. It also has a lower threshold for light emission: a mere three volts, as opposed to six for Tungsten. The bulbs still worked after being switched on and off 5000 times, and could operate at 25 volts for more than 360 hours.

The filament also behaves as a precise resistor over a wide temperature range: producing consistent resistance at up to 1750 Kelvin.

The experiment involved replacing the tungsten filament with a highly pure carbon nanotube version. The team made the tubes by chemical vapour deposition. After soaking in alcohol, the tubes self-organise into long filaments. The new filament was sealed, under vacuum, into an ordinary 40 watt bulb.

According to PhysicsWeb, the researchers say that although more work is needed, the bulbs could be commercially available in the next five years. ®

read more here...

sperbonzo · 06-04-2004, 08:30 AM

Unfortunately, projected cost estimates show that each bulb will cost $14,000.00

Ash@phpFX · 06-04-2004, 08:57 AM

carbon filaments?
i hooked up a stick of graphite from a pencil to a power supply in high school, the chem teacher told us graphite was conductive so i had to test it. it lit up lije a filament, and burned a hole in the desk and floor before igniting.

i think these chinese guys may have stolen my research

cool1 · 06-04-2004, 08:59 AM

Sounds interesting

jacked · 06-04-2004, 09:00 AM

haha

is that really the estimated cost per bulb 14k is ridiculous

EviLGuY · 06-04-2004, 09:03 AM

Interesting.. I'm all for anything that means better conventional light bulbs... seems I am always changing em. (I hate those halogen bulbs too)

06-04-2004, 08:27 AM	#1
jacked sperm tail Industry Role: Join Date: May 2004 Location: nj Posts: 11,019	First Change to the Lightbulb since Edison Chinese scientists working in collaboration with Louisiana State University have demonstrated a light bulb in with a carbon nanotube filament. As well as being the only real change in design in the last 125 years, the nano-filament bulb has several advantages over traditional tungsten. Firstly, the researchers, lead by Tsinghua University's Jinquan Wei, found that the nano-filament emitted more light than tungsten at the same voltage. It also has a lower threshold for light emission: a mere three volts, as opposed to six for Tungsten. The bulbs still worked after being switched on and off 5000 times, and could operate at 25 volts for more than 360 hours. The filament also behaves as a precise resistor over a wide temperature range: producing consistent resistance at up to 1750 Kelvin. The experiment involved replacing the tungsten filament with a highly pure carbon nanotube version. The team made the tubes by chemical vapour deposition. After soaking in alcohol, the tubes self-organise into long filaments. The new filament was sealed, under vacuum, into an ordinary 40 watt bulb. According to PhysicsWeb, the researchers say that although more work is needed, the bulbs could be commercially available in the next five years. ® read more here... __________________ Got Cam Models? icq: 361-607-616

06-04-2004, 08:30 AM	#2
sperbonzo I'd rather be on my boat. Industry Role: Join Date: May 2003 Location: Miami, FL Posts: 9,748	Unfortunately, projected cost estimates show that each bulb will cost $14,000.00 __________________ Michael Sperber / Acella Financial LLC/ Online Payment Processing [email protected] / http://Acellafinancial.com/ ICQ 177961090 / Tel +1 909 NET BILL / Skype msperber

06-04-2004, 08:59 AM	#4
cool1 sex is good Join Date: Sep 2001 Location: Carman, MB Canada Posts: 24,939	Sounds interesting __________________

06-04-2004, 09:00 AM	#5
jacked sperm tail Industry Role: Join Date: May 2004 Location: nj Posts: 11,019	haha is that really the estimated cost per bulb 14k is ridiculous __________________ Got Cam Models? icq: 361-607-616

06-04-2004, 08:57 AM	#3
Ash@phpFX Confirmed User Join Date: Nov 2003 Posts: 4,292	carbon filaments? i hooked up a stick of graphite from a pencil to a power supply in high school, the chem teacher told us graphite was conductive so i had to test it. it lit up lije a filament, and burned a hole in the desk and floor before igniting. i think these chinese guys may have stolen my research

06-04-2004, 09:03 AM	#6
EviLGuY So Fucking Banned Join Date: Apr 2003 Location: malta Posts: 12,745	Interesting.. I'm all for anything that means better conventional light bulbs... seems I am always changing em. (I hate those halogen bulbs too)