This interactive is used in Chapter 7.
In the Blackbody Radiation Interactive, students can manipulate the scroll bar in the upper right corner and see how temperature influences the size and luminosity of stars. In the scroll bar in the bottom portion of the Interactive, users can see how temperature of stars affects its wavelength.
Source
http://highered.mheducation.com/sites/007299181x/student_view0/interactives.html#
Blackbody Radiation Interactive screenshots
