Gregor Mendel - 2 of 2

 

For your consideration...the following is an excerpt from a radio spot on KAPL radio, Jacksonville, Oregon, called " Akin For the Truth". To listen to the entire spot (a few minutes long), click the little microphone icon....Jack

When resuming our listing of the scientific accomplishments and discoveries of the period of Mendal and Darwin, we take up 1848 when Helmholtz articulated the Conservation of Energy, and an absolute scale of temperatures was proposed by William Thompson. The field of stereochemisty began as Louis Pasteur separated two forms of tartaric acid. The speed of light was measured by physicist Fizeau, a four-valve steam engine was patented by Corliss, and the anthrax bacteria was discovered by Pollender. Clausius articulated the Second Law of Thermodynamics and Foultault demonstrated that the Earth rotates using a pendulum, suspended from the ceiling of a church. William Thomson proposed "absolute zero" at which the energy of molecules is zero. In 1852 Helmholtz measured the speed of nerve impulses in frogs and mathematician Riemann showed that a variety of non-Euclidean geometries are possible. A mercury pump was developed by Geissler to produce vacuum tubes. Pasteur described how fermentation is caused by microorganisms. Clausius explained his theory of heat. Then, in 1858, as the first transatlantic cable began operating, the concept of chemical "bonds" was introduced by Couper. Charles Darwin's On the Origin of Species was published in 1859, and the first internal combustion engine was developed by Jean Lenoir.