This is HOT!

[gevorg]

death penalty if you do this in San Francisco

 

[KevinCU]

So this would be a bitch?



'sup, Kevin?

Take it away! We actually did some log-log and semilog plots in my MATLAB class a few weeks ago so that isn't too scary.

I'm actually procrastinating and avoiding doing my power/transformer homework that's due tomorrow. On the plus side I do have an interview with a well-known tire manufacturer next Tuesday.

 

[highland145]

death penalty if you do this in San Francisco

What if I had my own solar/wind/nuclear/coal power plant?

 

[highland145]

Take it away! We actually did some log-log and semilog plots in my MATLAB class a few weeks ago so that isn't too scary.

I'm actually procrastinating and avoiding doing my power/transformer homework that's due tomorrow. On the plus side I do have an interview with a well-known tire manufacturer next Tuesday.

Bridgestone plant is 15 min from me, along with Kimberly Clark....welcome. Micheline is ~45min.

 

[KevinCU]

Bridgestone plant is 15 min from me, along with Kimberly Clark....welcome. Micheline is ~45min.

I didn't know that. :O I'm actually interviewing with Goodyear up in Fayetteville. There's also a Michelin plant that is maybe 10 minutes from campus but I didn't see any internships/co-op available.

 

[highland145]

I didn't know that. :O I'm actually interviewing with Goodyear up in Fayetteville. There's also a Michelin plant that is maybe 10 minutes from campus but I didn't see any internships/co-op available.

When I traveled, ~Laurens, SC, test track (banked) by the highway..would have loved to try that out...with someone elses' car.

 

[alkemyst]

If I want something hot with electricity the bish better be making grilled cheese.

 

[KevinCU]

When I traveled, ~Laurens, SC, test track (banked) by the highway..would have loved to try that out...with someone elses' car.

Don't tempt me.

 

[OBLAMA2009]

turning that on probably just cost him $100

 

[Baked]

I wanna see the electric meter when he turned that thing on.

 

[Rubycon]

It was probably pulling around 30A at 230V 50Hz. Not that bad. You can see the lights dim when he throws that switch. Now if the lamp was connected across the line the inrush current would have been huge! It will run off a 50A circuit (time delay or motor rating required) but the initial inrush would be perceived on the entire block! (UPS switching to battery on his neighbor's PC, for example!)

 

[Mr. Pedantic]

How efficient is this compared to a normal incandescent?

 

[AMCRambler]

"My eyes!!! The goggles!! They do nothing!!!!"

 

[sun_tzu]

Technically speaking, lightbulbs produce more light the less efficient they are. Resistance is what heats up the coils and makes the gas inside react... something like that.

 

[Mr. Pedantic]

Technically speaking, lightbulbs produce more light the less efficient they are. Resistance is what heats up the coils and makes the gas inside react... something like that.

Unless you're using your light bulbs to heat your house, 'efficiency' in this context implicitly means light energy/total energy.

 

[dennilfloss]

Cause Ruby thinks watts are hot.

She thinks Watts are a riot.

 

[Red Squirrel]

IIRC most lights on towers where required are Xenon flashtubes. They flash at high power during the day and at night switch to a psuedo-CW mode where they turn on briefly (not a flash) and are much dimmer. Radio towers use incandescent bulbs - as high as 600W. They are undervolted and have a direct current soft (inrush eliminator) circuit to enhance MTBF. LEDs are taking over and can function like the aforementioned Xenon strobes and have a traditional "glow on - glow off" of incandescent beacons without the maintenance. RE: https://www.youtube.com/watch?v=C_-7Qp7uzbQ

Damn that looks like fun as hell! Crazy there's no safety harness though but I see their point. Having to constantly unclamp/clamp would really get tiring.

Then get to the top, and realize the bulb is still in the truck. :biggrin:

 

[silverpig]

Technically speaking, lightbulbs produce more light the less efficient they are. Resistance is what heats up the coils and makes the gas inside react... something like that.

I think the opposite is generally true.

More resistance = more heat.

More heat = higher blackbody radiation temperature.

Higher blackbody radiation temperature = more light*

* - for lightbulbs this is true because you're not going to get into the temperatures where the peak of the blackbody spectrum is in the UV with a tungsten filament

A really shitty lightbulb is called a stove element. Tons of power, faint red glow.

 

[Rubycon]

A really shitty lightbulb is called a stove element. Tons of power, faint red glow.

That's power density at work. Increase forward voltage and it will turn orange and yellow and...eventually it will burn out! It ends often in a fanfare of various spectra and of course the arc has much more visible light too!

https://www.youtube.com/watch?v=atomTjWOLtU

An electric bulb will also produce more lumens with a noticeable shift to high color temperature. Its life will be shortened greatly as well. Switching to a quartz capsule, and putting the filament in an atmosphere containing halogen salts will allow it to be pushed harder producing more lumens/watt and whiter light without blackening the envelope or blowing out prematurely. So called "quartz halogen" lamps have been around for a while. They actually put out enough UV radiation to warrant the use of a shield or outer bulb. If they suddenly shatter the hot shards of quartz can ignite surrounding materials as well.

Overdriving halogen lamps is quite hazardous and definitely should not be done on a regular basis.