King of the Royal Mounted (1940)

Paul McVey: His Excellency [Ch. 1]

Quotes 

• Doctor [Ch. 1] : I have here a model of our marine mine. This mine has been treated with a pitchblend concentrate known as "Compound X." To this Compound X I have added one milligram of copper sulphate. You will observe the effect.

  [the mine is attracted to the model of a ship and blows it up on contact] 

  His Excellency [Ch. 1] : A magnetic mine! Gentlemen, this weapon is greater than the submarine itself. Explain, Doctor.

  Doctor [Ch. 1] : Gladly. Your Excellency, this is a discovery of a Canadian scientist named Merritt. It's extremely valuable as a cure for infantile paralysis. By adding copper sulphate, the compound becomes highly magnetic as you have seen.

  Admiral [Ch. 1] : Then a mine or torpedo containing the compound aims itself at any steel hulled vessel in that area.