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View Diary: To MB with love: spherical solar collectors so sensitive they can generate energy from moonlight (173 comments)

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  •  Ambient light doesn't count (1+ / 0-)
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    because, like all lenses, this spherical lens focuses light from a single point on the celestial sphere onto a single point on the focal plane. If the device is aligned to catch light from the Moon onto the PV cell, ambient light (from stars and such) would not fall onto the PV cell.

    Beyond that, the full Moon is much brighter than the sum total of all ambient starlight. I haven't run the numbers, but it's (very roughly) 1000 times brighter. So the starlight is incredibly trivial.

    We are all in the same boat on a stormy sea, and we owe each other a terrible loyalty. -- G.K. Chesterton

    by Keith Pickering on Thu Mar 06, 2014 at 06:40:30 PM PST

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    •  OK, so you win on these numbers Keith. But, it (0+ / 0-)

      sounds like even by your numbers if you had this going for 8 hours you could charge your Iphone up 1/4 of a full charge over night.  

      My title only claimed these things were sensitive enough to generate some energy, I didn't say how much.

      And, you can see from the fact I mentioned in my first two sentences, and last five paragraphs, my purpose here tonight was to pay tribute to MB at the opportune moment that he chose to let loose in a wild and rare snarky moment in one of my posts last week about a true major technological advance in solar energy. (see post) In fact, in my 9 and 1/2 years here I've never seen him make a snarky joke like that so I was so honored I had to respond.

      And, like most spontaneous urges I have, I probably over did it. Now the poor fellow will probably never try joking around in one of my posts again, which would be a tragic unintended side affect.

      Anyhow, I probably should have posted this elsewhere than Kosowatt, Like Hydrant, or Now For Somethting Completely Different. Sorry, for any confusion.

      This one was for fun, and to say thanks to MB in a fun way. I don't even know if these globe things really work. Its a real article but looks like a concept piece by an architect, more than an engineering breakthrough.

      A beautiful design improvement I must say. I'll research he engineering specs and get back to you within a few days.  

      "Seriously, Folks, WTH?" - ("What the Heck? "h/t Joan McCarter, Seriously, Florida. WTF?)

      by HoundDog on Thu Mar 06, 2014 at 10:42:29 PM PST

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