In November 1781, John Hanson became the first President of the United States in Congress Assembled, under the Articles of Confederation. Many people have argued that John Hanson, and not George Washington, was the first President of the United States, but this is not quite true.
Even and odd mode impedances of a coupled microstrip line. actually I find the reason when you use differential port, the impedance you get is twice the odd mode impedance, whereas if you use common port, the impedance is half the even mode impedance. 1 members found this post helpful.
Double solid white lines divide two lanes of one-way traffic and prohibit lane changes. A broken white line divides lanes of one-way traffic and permits lane changes. Double solid yellow lines indicate that traffic is traveling in both directions, and passing is not permitted on either side of the center line.