Tag Archives: Leonardo da Vinci

Leonardo, lenses and the earliest photograph?

Posted on 28/05/2012 by dougaj4

Walking around Venice I had seen a large poster for a Leonardo Da Vinci exhibition, with no details of locations or dates, and on the Internet the only links were to exhibitions from previous years, but arriving in Florence I … Continue reading →

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The history of the theory of beam bending – Part 2

Posted on 20/04/2008 by dougaj4

Before moving on from Galileo, Mariotte and Parent, let’s examine a peculiarity arising from the testing of their formulas. Jacques Heyman in “The Science of Structural Engineering” states: “… then the new calculation of bending strength [by Parent] gave a … Continue reading →

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The history of the theory of beam bending – Part 1

Posted on 27/02/2008 by dougaj4

The theory of the flexural strength and stiffness of beams is now attributed to Bernoulli and Euler, but developed over almost 400 years, with several twists, turns and dead ends on the way. Galileo Galilei is often credited with the first … Continue reading →

Posted in Beam Bending, Newton | Tagged , , , , , , , | 10 Comments