Once upon a time, a commercial pilot was searching through his grandmother's office, and came across a very strange contraption.
What the heck is this? He wondered.
His grandmother was a retired airline pilot, and he often found training manuals in the form of actual books where he could read and fully understand how the aircraft operated. Today, he found something rather interesting, but he was dumbfounded as to what it was.
"Grandmother. What is this thing?" he asked.
"An E6-B," she replied.
"A Wiz Wheel."
"It's a circular slide rule," she calmly replied. "Used for navigation."
"Grandma, I'm still not following." He turned the instrument from front to back. How could anyone navigate with this thing?
Grandma sighed. "It's an analogue computer."
"Oh! Now I understand!" he finally exclaimed.
A few hours later grandam retuned to her office
and this is what she found...
"If you know where you are,
you will never be lost,
because there you will be."
Enjoy the Journey!