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# Tag Archives: hole trough the middle of the Earth

## Daily Download 28: The Hole Through the Middle of the Earth, using ODE solvers, and Three Blokes

Today’s download is based on a series of posts on the “hole through the middle of the Earth”, which by devious means has been tied in with the solution of differential equations, buckling of columns, and a story by Bill … Continue reading

Posted in Beam Bending, Excel, Maths, Newton, UDFs, VBA
Tagged air density, Bill Bailey, column buckling, hole trough the middle of the Earth, Newton, Three blokes
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## The hole through the middle of the Earth – moved to the Equator

Previous posts in this series assumed that the hole went from pole to pole, and ignored such complications as tidal effects and wobbles of the axis of rotation. In this post we will examine the effect of moving the hole … Continue reading

Posted in Differential Equations, Excel, Maths, Newton, UDFs, VBA
Tagged Excel, hole trough the middle of the Earth, ODE Function, ODE solver, UDF, VBA
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