Planck's Law / Black Body Spectrum

[j0se1991]

i suppose that this classes is for students of first semester in that university, they're playing because this isn't physics

[artysci101]

@j0se1991 - they're high school students at a 2 week cosmology workshop

[heltzarr]

It was a great demonstration. But the guy who was talking was the WORST at describing things.

[thedarkholeconsumer]

@heltzarr lol agreed

[JuanVoyce]

So what happens if the blackbody is heated above 7000K?

[lundburgerr]

@JuanVoyce

The curves on the graph represents the intensity of various wavelengths of light at different black body temperatures.

In this graph (at the beginning) they took the curves for 3000K, 4000K, 5000K, 6000K and 7000K as an example You could obviously draw curves for temperatures above 7000K aswell :).

However, what you should expect from the curves is that if the temperature doubles, the body should emit 16 times more light and the curve should also move to the left of the graph.

[JuanVoyce]

@lundburgerr OK amplitude = 4th power of T, but doesn't it also show that T is directly related to the wave length--and that above 7000k the BB radiation would not be visible since it shifts left into the UV?

[itachiLUVZgulsan]

@JuanVoyce the radiation is seen as bright light, above the visible spectrum