FCC Accuses Stealthy Startup of Launching Rogue Satellites

Re:FCC Accuses Stealthy Startup of Launching Rogue Satellites by pocketstar on Saturday March 10, 2018 @09:26PM (#16561401)

"A black body is an idealized physical body that absorbs all incident electromagnetic radiation, regardless of frequency or angle of incidence." [0] Black bodies are theoretical, they do not exist. Apollo had radiators, they might have been black but they were not a black body. Vantablack comes close to a black body for the visible spectrum which is p cool tho.

[0]https://en.wikipedia.org/wiki/Black_body

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Re:FCC Accuses Stealthy Startup of Launching Rogue Satellites by tensor_rank_0 on Saturday March 10, 2018 @11:56PM (#16561765)

> Black bodies are theoretical, they do not exist. Apollo had radiators, they might have been black but they were not a black body.

they were, as I said, "black body radiators" which are not theoretically ideal black bodies, but still manage to radiate black body radiation.

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Re:FCC Accuses Stealthy Startup of Launching Rogue Satellites by dannypgh on Sunday March 11, 2018 @10:45AM (#16563176)

I think the term you're looking for is simply "radiator."

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Re:FCC Accuses Stealthy Startup of Launching Rogue Satellites by tensor_rank_0 on Sunday March 11, 2018 @03:08PM (#16564294)

yes that is more parsimonious however in non-technical language the term "radiator" is associated with heat exchangers. if you put heat exchangers on the sides of your spacecraft they would function as radiators so I suppose it doesn't matter anyway, arguing semantics is a waste of time.

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Re:FCC Accuses Stealthy Startup of Launching Rogue Satellites by pocketstar on Sunday March 11, 2018 @04:52PM (#16564713)

a "radiator" is a heat exchanger and "radiator" is the industry standard term. these semantics are required for effective communication about technical topics.

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