Temperature and color - why hot objects glow red?

  • Thread starter i.mehrzad
  • Start date
  • #1
84
0
Is there any reason why most hot things alost always begin to get the tinge of red??
 

Answers and Replies

  • #2
jonegil
hi mehrzad...yeah there is a reason...it is related to their thermic radiation spectrum...when you heat up an object like a piece of iron...it will emit higher energetic radiations...from Infra-Red it changes to Red...then Orange...Yellow...White...Blue...UV...and so on

(wavelength peak)=(B)/(Temperature)----»for a blackbody
 
  • #4
jonegil
if you want to know more about this branch of thermodynamics...look for ultraviolet catastrophe, it's interesting
 
  • #5
60
0
Remember red is cold and blue is hot. I still don't recomend touching a piece of steel that is red.

CraigD, AMInstP
www.cymek.com
 

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