5 thoughts on “Insolation on a horizontal flat plate

  1. At 24:22 : min I couldn't understand how '''' Lz =Lm*cos(fi )+ Lp*sin(fi)''' ,… what I know is Lm=Lz*cos(fi) & Lp=Lz*sin(fi)'''''o''''
    and Lz=Lm+Lp (vectro sum),o
    correct me if I where wrong please

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