Do You Really Need GPS?

Throughout all time the big question has been and stillMy son and son-in-law tagged along and we cought a
is: Where in the heck am I?boodle of fish. Toward evening, I put my hand up to
Adam said, "Where are you going, Eve?"measure the altitude of the sun and I said, "In 40
Eve shook her blond hair and said, "Darned if I know,minutes it will be dark. We'd better head in."
Adam. I'm just bored with this place."Well, nobody wanted to quit fishing and my friend
"Well, stay here then if you don't know where you areassured me that we would be able to get in by looking
going. You might get lost."for the navigation light at the mouth of the Maurice
Adam set on a rock and waited for her answer.River. We would follow the light and slip up the river to
Eve said, "I won't get lost, Adam. Besides, I'm not athe dock.
man. If I do get lost, I'll ask for directions."Finally as the sun dropped into the abyse of spacetime
Adam said, "You must have some idea where youmy friend decided it was time to leave. He cranked up
want to go, Eve. You can't just go wondering off intothe engine but the boat didn't move. Poking our heads
the dark and dreary world.to see what was below deck we found water. The
She looked at Adam with her pale blue eyes and said,boat had such a tonage of water that it would not
"I was thinking more of Paris than the dark and drearymove.
world.My friend had installed a pump so he flipped it on. That
Back in those days folks tried to keep track of wheredidn't help, so we started bailing out the water.
they were by looking at the stars. The great explorer,Eventually, we got the boat moving.
Phendom, used the stars to navigate. In 45678 b.c. onI suggested that we put on the lifejackets. The
his first trip to Greenland his chief navigator,Delaware is full of ugly tankers and cargo ships and
Sogbottom, said, "I think we had better head backsuch. I could see us in the water screaming at the top
north, Phendom. I think that is the Southern Cross."of our lungs, HELP!
I found only one reference to Phendom on That isWe headed east but we could not see the blasted
how unknown he is. The reference was cached, butnavigational light. We moved south and finally we could
the ever-loving said I could read the text if I liked. Isee it. We motored up the river at a slow pace
decided to do that until one of those little boxesbecause the docks on the river had signs that said: NO
popped up and told me I would have to install theWAKE!
Korean Language module to read it.We moved slower and slower as we took on more
That is how I learned that Phendom, who waswater. The musquitos got thicker and thicker. We
probably the first Sea Explorer, was Korean.thought we were with Bogey on the African Queen.
I still remember three words in Korean from myFinally, we arrived at the dock. That's where we
Korean War days. I can say, "How are you?learned that we could not move to the dock because
(awnyahasiminiga)" I can say, "Come here," to a manthe boat would not steer properly. Then by luck on the
(erioseeo). And I can call a dog (ereereereere, etc.). It's70th try, we pulled up to the dock.
best in Korea not to get the last two mixed up.I grabbed two five gallon cans of fish and ran for my
Koreans like to throw rocks.Volkswagen bus, ten zillion mosquitoes helping me
Back to the stars: If you measure the angle from thealong.
horizon to Polaris, you will know your latitude. Polaris isThe next morning, my friend went down to the dock
the "Pole Star." You may know it as the "North Star."to check on his bargain boat.
To find Polaris, look for the big dipper. If you can't findHe couldn't see it at first.
the Big Dipper, it is opposite the "W" which is alsoThen he found that it was only a few feet away.
known as Cassiopeia. To see how this is all done goUnfortunately, the direction was down!
to:Glub, glub!
You can see why I just love "I love those goo gooSorry for that major diversion from our very serious
googlely eyes!" You might try: for more on Barneydiscussion on navigation and all.
Google with the goo goo googlely eyes!"Sometime after the compus was discovered, man
Don't forget to drop in to see Barney Google himnselfdiscovered radio navigation. Transmitters along the
at: You will be glad you did.cost sent out a characteristic bleep that boats could
At this point it would be proper to discuss how thetriangulate on or dead recon on to find their way home.
early mariners determined longitude. Darned if I knowWe learn the following at:
how they did it. I do know that Captain James"The first system of radio navigation was the radio
1768-1780 A.D. was the first to use a chronometer todirection finder, or RDF. By tuning in a radio station and
determine longitude. It says so at:then using a directional antenna to find the direction to
The chronometer will just get us into a flimditty just asthe broadcasting antenna, radio sources replaced the
the sextant would. Let's move on.stars and planets of celestial navigation with a system
(I made up the word flimditty because it is just whatthat could be used in all weather and times of day.
we needed in that last sentence, right? You won't findTaking two such measurements and plotting the
it in your dictionary or at You must be thrilled to bedirections on a map will result in an intersection, your
reading the writings of a modern creative literarycurrent location. Commercial AM radio stations can be
genious.)used for this task due to their long range and high
There is no reason to get into a fitznizzle overpower, but strings of low-power radio beacons were
longitude and the chronometer.also set up specifically for this task. Early systems
Skipping history, modern day navigators have aused a loop antenna that was rotated by hand to find
number of ways to find their way home. Some yearsthe angle to the signal, while modern systems use a
back a friend of mine told me that he had bought amuch more directional solenoid that is rotated rapidly
fishing boat at a sheriff's sale for $800.00. He wasby a motor, with electronics calculating the angle."
very excited about that boat and so was I. He put aPlacing transmitters on Global Positioning Satellites
new V-8 engine in the boat and off we went fishingsolved all of our navigational problems except during
on Delaware Bay, God's great gift to ardent fishermen.heavy sunspot activity or overlyactive solarwinds.