If you want to know about cupcakes
you don't ask a pork butcher, right? That is why when you want to know about
antennas ask us - we know what we’re
Believe it or not, the world would be
a duller place without antennas
. No television, video, phone, tablet or audio. Whether delivered
by satellite, cellular network, over-the-air broadcast or streamed via wireless
Internet. Think how boring
your Saturday nights would be, in an antenna-free zone! Maybe you have got more antennas than you know what to do with, and
your Saturday nights are still boring. If so, that’
s your lookout, buddy!
An antenna is one of those marvelous inventions that make modern life not just bearable, but
exhilarating. They are everywhere. In
our phones and
tablets. They are in the home,
at the office, at an airport or hotel, and in the bars and restaurants where we drink and eat. So the next
time you come across the word antenna, even if your grandmother plays the word
during your Sunday Scrabble-fest - think respect.
probably wondering just how these devices work. Wonder no more because here
comes the science bit. We will try to make this painless. But if you spent more
time in High School around the back of the science block smoking Marlboro than
you did inside the science block learning stuff, just take a handful of bravery
pills and listen up. This won't take long and you will be a better person for it.
If you place
two wires side by side, the current flowing through them will cancel each other
out. But if you bend the top of each wire through 90 degrees, something
interesting happens - You cause current in both wires to flow across the same
plane. And this turns the wires
collectively into a sender or receiver of electromagnetic energy (EME) - that is
radio and television signals to you and me.
Now that wasn’t too bad, was it?