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# Tag Archives: Newton

## Falling feathers and hammers

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

## The statement below is false

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 Bach, Fractals, mathematical images, Newton, optical illusions
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## 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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## Cambridge Digital Library

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