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The Prime Meridian Didn’t Always Run Through Great Britain

Way back in the Third Century B.C.E., the Greek mathematician and geographer Eratosthenes proposed lines running north to south and east to west as a way of precisely locating where one is on the earth. A hundred years or so later, Hipparchus, another Greek...

Time – The Key to Determining Longitude

For centuries, mariners were able to determine their latitude by measuring the height of a celestial body such as a star, the sun or moon above the horizon. Knowing the time of year or the phase of the moon how to do the math, latitude could be calculated. Recognizing...

Sir Isaac Newton and the Sextant

Up until the voyages of discovery began in the late 15th Century, ship captains rarely sailed out of sight of land. Why? Even though they knew what direction they were heading, mariners were not able to accurately “fix” their position. Shipboard inertial navigation...


Marc is an experienced pilot and writer whose career as a Naval Officer and Naval Aviator, business executive, consultant and entrepreneur helped him fulfill his dream of becoming a novelist. In the novels, Marc creates stories with rich, interesting characters and puts them in the proper historical and operational context. His books are memorable, exciting and fun to read.


Cherubs 2
Big Mother 40
Render Harmless
Inner Look
Moscow Airlift


Penmore Press
Deeds Publishing

PRESS Marc is available for interviews, conferences on a limited basis and book signings.

BOOK SALES Retailers, Distributors and Library Services Wholesale distribution is available in the United States, Canada, the United Kingdom, Europe and Australia.