Challenge: Light Bulbs to Charge a Battery ?

[Chief Engineer]

I saw an old port engineer use a light bulb as a resistor to step down a 24 volt charger to twelve volts....it worked....but I never fooled with it.

All I can surmise is the lightbulb acted as a resistor

[sabray]

Originally Posted by Chief Engineer

I saw an old port engineer use a light bulb as a resistor to step down a 24 volt charger to twelve volts....it worked....but I never fooled with it.

All I can surmise is the lightbulb acted as a resistor

Would he like a box of light bulbs

[Chief Engineer]

Better hang onto that box o'bulbs....as the gubmint is going to ban them....so we can put more mercury into our environment via CFL's

[senormechanico]

Rand has a good handle on what needs to be done.
This EPA official must have been shaking in her Berkenstocks !

http://videos2view.net/smackdown.htm

[sabray]

For sale glass reinforced cathode bumpers. Single Box of 20 .non refundable.

[sdowney717]

Originally Posted by Seaduction

Makes as much sense as growing corn, harvesting it, mashing it, making ethanol, adding it to gasoline to expand the gasoline quantity by 10% at a cost that eradicates any savings at all. Growing the corn requires energy from the tractors, corn seed suppliers, acreage with fertilizer, harvesting with equipment also burning gallons of diesel fuel. etc, etc, etc. Do you think after all of that, is ethanol gasoline saving anybody anything?? It certaintly makes the corn supply preciously short for all of the food needs that corn usually supplies. (I guess as a former research chemist among other things, I like to consider the laws of conservation of matter and energy.)

so true AND this
cars running e10 gets less MPG, so, if your mileage drops 10% or more you are using more gasoline running e10 than you would get running just plain gasoline. Some people might get mpg drops less or more, but, the whole idea of e10 was to use less fossil oil and ethanol does not compute. But we are dumb sheep, like politically correct, feel good sensual mind driven folk, and believe what our politicians say and drink their kool aid.

hook line and sinker.
It is easier to be happy and believe what they say than fight for truth.
many young people that believe in green tech think a fantastic power source to drive their cars wll be developed soon by way of advanced technologies. They watch a lot of science fiction movies and think we will soon do the same thing.

[chala]

Originally Posted by Seaduction

Makes as much sense

Originally Posted by sdowney717

so true AND this

Yes we are certainly in for a radical change.

[LostAtSea2011]

I use light bulbs to charge my batteries but they are shining on my solar panels.

[Captain Bill]

This is actually a pretty simple one as circuits go. All the energy comes from Battery 1. The diode effectively changes the output of the inverter to 120V pulsed DC. After that it's a simple DC circuit with two resistors, the light bulb and the battery. If you pick the proper wattage bulb (determined by its resistance... higher resistance less watts) to divide the output of the inverter properly you'll end up with the voltage drop you need to charge the battery across the battery two's terminals. It's a simple ratio/proportion math problem. Nothing special going on here and no free energy, in fact this is probably one of the least efficient ways of charging a battery that comes to mind.

[Sailor g]

Yeah but ...

How many sailors does it take to change a lightbulb?

[perchance]

Originally Posted by Sailor g

Yeah but ...

How many sailors does it take to change a lightbulb?

DEPENDS ON HOW MUCH RUM YOU HAVE.

[Sailor g]

Boaters always have rum- but also video cameras for YouTube!

[Chief Engineer]

Originally Posted by Sailor g

Yeah but ...

How many sailors does it take to change a lightbulb?

It all depends on how many opinions you get.

[Sailor g]

Originally Posted by Chief Engineer

It all depends on how many opinions you get.

Agh.  We'll never change a bulb 

[Captain Bill]

Originally Posted by Sailor g

Yeah but ...

How many sailors does it take to change a lightbulb?

That depends on the which lightbulb you're changing and what type of system you have to get to the top of the mast. In my case it takes two.