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Revision as of 11:58, 22 September 2017
Featured Article
Daniel Bernoulli (8 February 1700 -17 March 1782) A Swiss mathematician and a physicist.
Daniel Bernoulli published about 80 works, including 50 papers in the editions of the Petersburg Academy of Sciences and 10 prize-winning memoirs of the Paris Academy. But there was only one large treatise – his famous Hydrodynamica.
He is particularly remembered for his applications of mathematics to mechanics especially fluid mechanics and pioneering work in probability and statics.
Bernoulli's Equation is one of the fundamental equations of fluid mechanics and is the primary equation upon which Siphonic Drainage System design is based.
Today's Featured Picture
Hydrodynamica was published in 1738, by Daniel Bernoulli. In this book Bernoulli presented the earliest adequate theory of motion of an incompressible fluid in tubes (vessels) and fluid outflow through orifices, introducing the notion of the hydro-dynamic pressure. However, the treatise is not restricted to theoretical hydraulics. In the subsequent sections, he opens up new branches of physics and mechanics.
Hydrodynamica is founded mainly on the principle of conservation of ‘living forces’ (that is, kinetic energy). Bernoulli preferred to use this principle not in its traditional form, received hostility by Newtonians, but in Christiaan Huygens formulation that Bernoulli named the principle of equality between the actual descent and potential ascent: ‘If any number of weights begin to move in any way by the force of their own gravity, the velocities of the individual weights will be everywhere such that the products of the squares of these velocities multiplied by the appropriate masses, gathered together, are the bodies descends, multiplied by the masses of all of them’.
