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Show Amount of Power That Your Aerial Picks Up It has been computed that the amount of power picked up by the ordinary receiving aerial is about one-billiontli one-billiontli of n fly-power. Think of It I If your receiver picked up as much power as that possessed by a fly, you would be receiving a billion times more energy than you are now receiving. receiv-ing. It seems almost Impossible to comprehend this fact. Here is another an-other illustration that may help you to understand how very small Is the power actually picked up by your nn- tenna. If the power radiated by the average transmitting station were collected col-lected nnd used to hent an ordinary electric toaster It would not even glow nt a dull red heat and certainly would not burn your bread. Yet this small amount of energy is radiating in all directions and spreads over a circle cir-cle with a diameter of 16.000 to 20.000 miles, for signals have been picked up hundreds of times at points S.000 to 10,000 miles distant from the transmitting trans-mitting station. Just imagine every foot of space in j in a circle with a radius of 10.000 miles being flooded with part of the energy that originally was only j enough to heat nn electric toaster, then you begin to get an idea of the ! extremely small amount of energy i that reaches your particular aerial. I From this it will be realized that j to detect the extremely faint signals 1 from distant stations your receiver j must be very sensitive and efficient |