Draper point
The Draper point is the approximate temperature above which almost all solid materials visibly glow as a result of blackbody radiation. It was established at 977˚ F (525˚ C, 798 K) by John William Draper in 1847. Bodies at temperatures just below the Draper point radiate primarily in the infrared band and at longer wavelengths, and emit negligible visible light. The value of the Draper point can be calculated using Wien's displacement law: the peak frequency (in hertz) emitted by a blackbody relates to temperature as follows: where
primaryTopic
Draper point
The Draper point is the approximate temperature above which almost all solid materials visibly glow as a result of blackbody radiation. It was established at 977˚ F (525˚ C, 798 K) by John William Draper in 1847. Bodies at temperatures just below the Draper point radiate primarily in the infrared band and at longer wavelengths, and emit negligible visible light. The value of the Draper point can be calculated using Wien's displacement law: the peak frequency (in hertz) emitted by a blackbody relates to temperature as follows: where
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El punto [de] Draper es la tem ...... que es visible al ojo humano.
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The Draper point is the approx ...... square metre, mostly infrared.
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نقطة درابر هي عبارة عن درجة ال ...... ها في نطاق الأشعة تحت الحمراء.
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Wikipage page ID
24,724,562
Wikipage revision ID
701,309,340
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El punto [de] Draper es la tem ...... de Wien: la frecuencia máxima
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The Draper point is the approx ...... temperature as follows: where
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نقطة درابر هي عبارة عن درجة ال ...... ن حسابها كما بالأسفل: حيث أن :
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Draper point
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Punto Draper
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نقطة درابر
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