A4_5 As the crow flies or as the mole digs

Joshua Barker, John Coxon, Thomas Conlon


It is a well-known fact the shortest path to follow is that of a straight line. This paper takes that concept to the extreme and considers the possibility that we could construct a straight tunnel from one place on the earth to another and looks at the reduction in transport time we could expect from such a transportation system. It is calculated that the travel time to connect any two points on the earth via a straight tunnel through the earth is only dependant on the density of the earth and this travel time is calculated to be 42.2minutes.

Full Text:



  • There are currently no refbacks.
We use both functional and performance cookies to improve visitor experience. Continue browsing if you are happy to accept cookies. Please see our Privacy Policy for more information.