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The numbers don't make sense to me. "It depends on how strong the sun is but it's more or less 40 to 60 watts." <- I hope that's for the whole roof we see in th
by gngeal 13y ago
The numbers don't make sense to me. "It depends on how strong the sun is but it's more or less 40 to 60 watts." <- I hope that's for the whole roof we see in the picture, not for a single bottle. What's the insolation of a single bottle top anyway? (Unless, of course, they're talking about your grandma's old-fashioned incandescent light bulbs.)
- sophacles 13y agoWell, at the surface, when the rays are hitting perpendicular to the planet, it's 1000 W/m^2 (approx). Of course the real problem is they are measuring the light in terms of incandescent bulb power draw, rather than something useful like lumens or candela, but due to a century of ubiquitous light bulbs, we've been rating light in the wrong units.