You will receive a new certificate in the mail from the FCC in two to six weeks. While in the US it is not necessary to have a certificate in your posession so long as the information is available online. The fee includes all taxes and postage. Proof by Oddity. To prove that horses have an infinite number of legs.
Horses have an even number of legs.
They have two legs in back and fore legs in front. This makes a total of six legs, which certainly is an odd number of legs for a horse. But the only number that is both odd and even is infinity. Therefore, horses must have an infinite number of legs.