Lonnie Johnson did risk assessment for the Atlantis space shuttle. He helped get the B-2 stealth bomber off the ground. He gave us the Super Soaker. And now, with his latest invention, he might just make solar power viable. More »
to produce the electricity to spl? A recent alternative hydrogen fuel seminar discussed the use of solar energy to produce the electricity to split water into hydrogen and oxygen.
a.Write a chemical reaction and determine the energy that is needed to split one mole of water molecules into...
So I found a 7x12 inch solar panel that came from a jetski. I hooked it to my multimeter and found that it puts out 20.25 volts and 86 watts. I was thinking about rigging it up to a cigarette lighter adapter so I can just plug it in and leaving it on the front seat of my car during long periods...
So I found a 7x12 inch solar panel that came from a jetski. I hooked it to my multimeter and found that it puts out 20.25 volts and 86 watts. I was thinking about rigging it up to a cigarette lighter adapter so I can just plug it in and leaving it on the front seat of my car during long periods...
Fact: Space is a freak show. But that link goes to a post about deep space, beyond our solar system. Thanks to the IBEX probe, however, we're quickly learning that our own backyard is rife with the freaky-deaky too. More »
Minuscule solar cells that can fix themselves using the same building blocks as plant cells have been demonstrated, with our old friend the carbon nanotube one of the key components that holds these self-healing power units together. More »
Why you'd want to forgo a teeth-brushing session with some delightful Indian curry, caramel or darjeeling tea-flavored toothpaste I'd never know. Still, at least this solar-powered toothbrush would save you money over extended use. More »
Do you remember when, in an act of slap-in-the-face cynicism (that American Environmentalists accepted with little protest) Ronald Regan took the previously deployed (and largely symbolic) solar panels off of the roof of the white house?
Bill Clinton did not restore them. Bush ... well...
I keep reading people argue that we have put so much money into research, and that solar and wind are not viable options for supplying our energy needs. 10 years ago Germany put solar panels on all homes and have now generated as much power as they would have if they had built 8 nuclear (or if...
Is the formula for calculating watts for DC the same as for AC (Volts x amps = watts)?
I'm trying to figure out the details of a solar system. There is a company selling controllers that are rated for either 10 amps, 20 amps or 30 amps 12/24 volt DC. At 30 amps 12 volt DC you would only be...
We heat with wood but are looking for a supplementary heater to help take the chill off or to keep the house from freezing when we are away. We have a 1.8KW system and the fridge would be the only thing running when we are away. Which is the overall better option for conserving both propane...
We heat with wood but are looking for a supplementary heater to help take the chill off or to keep the house from freezing when we are away. We have a 1.8KW system and the fridge would be the only thing running when we are away. Which is the overall better option for conserving both propane...
This Sunday there will be a total solar eclipse over the south Pacific Ocean, Chile and Argentina. Watching solar eclipses from Earth is a rare occurrence. Watching them from space is extraordinarily rare. Here are the best photos and videos. More »
Astronomy - Eclipse - Eclipses...
I remember a tv show where they talked about viewing particles from the solar wind here on earth, does anybody know what I'm talking about and how did they achive this?
I remember a tv show where they talked about viewing particles from the solar wind here on earth, does anybody know what I'm talking about and how did they achive this?
I remember a tv show where they talked about viewing particles from the solar wind here on earth, does anybody know what I'm talking about and how did they achive this?
I remember a tv show where they talked about viewing particles from the solar wind here on earth, does anybody know what I'm talking about and how did they achive this?