Tag Archives: Newton

Solving the Lagrangian Point equation for the Moon

Posted on June 23, 2019 by

This post was prompted by a recent question at Fitting high order polynomials, asking for Excel methods to solve the equations for the radius of the Moon’s Lagrangian Point 1. All the methods described in this post have been added to … Continue reading →

Posted in Excel, Maths, Newton, UDFs, VBA | Tagged , , , , , , | 3 Comments

Falling feathers and hammers

Posted on November 9, 2018 by

It is well known that at the end of the Apollo 15 Moon landing, Commander David Scott dropped a hammer and a feather to demonstrate that they would accelerate at the  same rate, and land on the ground together: What is … Continue reading →

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The statement below is false

Posted on December 20, 2012 by

If you think I’m wrong, try looking at it from a different perspective. The picture above came from an optical illusion blog at: http://www.anopticalillusion.com/ and I was led there from: http://www.josleys.com/index.php which is an amazing collection of mathematical imagery by … Continue reading →

Posted in Bach, Maths, Newton, Ray Tracing | Tagged , , , , | Leave a comment

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

Posted on October 16, 2012 by

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 , , , , , | Leave a comment

Cambridge Digital Library

Posted on December 13, 2011 by

Newton Papers Cambridge Digital Library Cambridge University Library is pleased to present the first items in its Foundations of Science collection: a selection from the Papers of Sir Isaac Newton. The Library holds the most important and substantial collection of … Continue reading →

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