Not quite ! Scroll down to the bit on the frequencydependent formulation in the wiki page you linked . The constant there doesn ' t fit cf with the Wien ' s law constant . The deal is that for the powerfluxintensity distribution , you ' re really plotting dPd , where P is your power or whatever . If you plot dPdf instead , you get a different peak , because you ' re looking at a different differential . <| sep |> Underrated . Charice has one of the best voices in music . I wish she had a more successful career that wasn ' t derailed because she came out as gay and is from a homophobic country . Also the songs she did on glee were some of the best from the entire show . Example 1 IbSVBIziQ 3 gExample 2 YE 1 iXZBYVs <| sep |> Some dudesSome totally unknown dudes , right . We totally don ' t know who they are .