Mention133632
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| so:text | A very simple experiment shows that a black surface is a better radiator, or pours out more energy when hot, than a surface which does not absorb fully, but reflects much of the radiation which falls upon it. If a platinum foil with some black marks on it be heated to redness, the marks, black when cold, are much brighter than the surrounding metal when hot; they are, in fact, pouring out much more visible radiation than the metal. (en) |
| so:isPartOf | https://en.wikiquote.org/wiki/John_Henry_Poynting |
| qkg:hasContext | qkg:Context65442 |
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Triples where Mention133632 is the object (without rdf:type)
| qkg:Quotation125021 | qkg:hasMention |
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