text: L=raw_input("Please Enter the length of the layer (in m): ")
  A=raw_input("Please Enter the area of the wall (in m2): ")
  material=raw_input("Please Enter the material of the layer: ")
  if material=="glass":
      k="1.145" #W/(mK)
  else:
      print("I do not have the properties of this material")
      k=(raw_input("Please Enter the conductivity off the layer(in W/(m K):  "))
  print("\n you just said "+ "L= " + L+ " m  "+ "A= " + A+ " m2  "+ "k= "+ k +" W/(m*K) \n")
  R=float(L)/(float(k)*float(A))
  print("Well the Thermal Resistnace is "+ str(R)+ " degC/W")
  