Very nice shot ... I love those dishes cuz they make me wonder what they're hearing from way out there.
Thanks, Chuck! They're basically imaging nebulae, galaxies and such. Apparently they're NOT listening for radio waves from distant civilizations, ala SETI, or so they claim.
They must collect a lot of dust out there. Do they clean them off?
Thanks, Mary. Yes, a cleaning staff goes out there and dusts them off every morning. No, haha, just kidding. Actually, the wind does howl through there on occasion, so that probably blows off the dirt.
Thanks, Mary. Yes, a cleaning staff goes out there and dusts them off every morning. No, haha, just kidding. Actually, the wind does howl through there on occasion, so that probably blows off the dirt.
Plus, those are radio telescopes. It turns out that dishes for radio waves don't have to be clean like optical elements. Radio and optical light are the same thing, just with different wavelengths. As a rule of thumb, any kind of light will only be scattered by dust that is as long or longer than the wavelength. The wavelength of radio waves is a few yards, so it would take quite a boulder of dust to mess it up!
The goal of my photography is is the effective, original communication of a feeling expressing truth, beauty, or love.
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Tom
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They must collect a lot of dust out there. Do they clean them off?
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Thanks, Chuck! They're basically imaging nebulae, galaxies and such. Apparently they're NOT listening for radio waves from distant civilizations, ala SETI, or so they claim.
That *is* amazing isn't it?
Thanks, Mary. Yes, a cleaning staff goes out there and dusts them off every morning. No, haha, just kidding. Actually, the wind does howl through there on occasion, so that probably blows off the dirt.
Cheers,
-joel
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Plus, those are radio telescopes. It turns out that dishes for radio waves don't have to be clean like optical elements. Radio and optical light are the same thing, just with different wavelengths. As a rule of thumb, any kind of light will only be scattered by dust that is as long or longer than the wavelength. The wavelength of radio waves is a few yards, so it would take quite a boulder of dust to mess it up!
www.photographyjones.com