1. Jun 2, 2016 #1

   pkc111

   

   Why are some materials behave more like black-bodies than others?
   What does it mean a "perfect" radiator and absorber? All objects give off 100% of the heat energy given to them eventually if they are at the same temperature as their environment...right?

    

   pkc111, Jun 2, 2016
2. 
   Phys.org - latest science and technology news stories on Phys.org

   • • New bioimaging technique is fast and economical
   • • A quick and easy way to shut down instabilities in fusion devices
   • • Engineers deliver new key components to help power a fusion energy experiment
3. Jun 2, 2016 #2

   DrClaude

   

   Staff: Mentor

   A blackbody is an idealized object. Real objects will not absorb all wavelengths equally.
   
   

   It means 100% absorption at any wavelength (no reflection). Perfect emission corresponds to the blackbody spectrum.
   
   

   Yes, but an actual object will not emit following the exact blackbody curve. Some wavelengths will be favored with respect to others.

    

   DrClaude, Jun 2, 2016
4. Jun 2, 2016 #3

   pkc111

   

   Thanks a lot that makes sense!

    

   pkc111, Jun 2, 2016

• Log in with Facebook
• Log in with Twitter

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in