Archive for chemistry

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1778 – Davy – bio

Humphry Davy was born in Cornwall, England, in 1778 and was known as a chemist. Davy used electric current from a voltaic pile to perform early forms of electrolysis and discovered sodium, potassium, barium, calcium, strontium and magnesium. He was the first to isolate barium and boron. He created the first electric arc lamp by […]

1031 – Shen Kuo

Shen Kuo was born in 1031 in Qiantang (Hangzhou today) in Eastern China. He excelled in the fields of astronomy, physics, chemistry, geology, medicine, literature, engineering, and was also known as a diplomat and expert at military strategy. Both his knowledge and assorted skills were encyclopedic. PRECURSOR: -0325 – Euclid 0220 – Ma Jun 0283 […]

1822 – Louis Pasteur – bio

Louis Pasteur was born in 1822 in France and is known for discovering pasteurization (heating beverages to kill bacteria in them) and vaccination. Vaccination is the process of exposing a patient to a vaccine, which causes a low level infection, stimulating the immune system to develop antibodies, creating an immunity against the disease. He explained […]

1627 – Boyle – bio

Robert Boyle was born in 1627 in Ireland and was known primarily as a chemist and his formulation that is called, “Boyle’s Law”. This describes the inverse relationship between the pressure and the volume of a gas. Boyle discovered that sound does not travel in the absence of air but that light does. His work […]

1776 – Avogadro – bio

Amedeo Avogadro was born in 1776 in Turin, Italy and is mostly known for discovering a relationship between mass and volume of gases that is now known as “Avogadro’s Law”. This law states that equal volumes of two different gases, at equal temperature and pressure, contain an equal number of molecules. It follows that the […]

Nanogenerators

Nanogenerators will be needed to power the new generation of tiny devices that nanotechnology is producing. Just as the self-winding wristwatch collects kinetic energy and uses it to drive the spring in the watch, it is possible to collect small amounts of energy in a variety of ways: motion and vibration, thermal differences, sonic waves […]

1834 – Mendeleev – bio

1834 – Mendeleev – bio

Dmitri Ivanovich Mendeleev was born in a village near Tobolsk in Russia in 1834. He invented the periodic table of elements and used it to predict properties of other elements that had not yet been discovered. Mendeleev was also a chemist and did research with explosives and petroleum fuels. He worked on hydrodynamics and thermodynamics […]

1743 – Lavoisier – bio

Antoine-Laurent de Lavoisier was born in 1743 in Paris, France and worked in the fields of chemistry and biology. He helped construct the metric system and also helped to create “The Method of Chemical Nomenclature” which was the first modern attempt to classify elements. He was considered to be the “father” of modern chemistry. Lavoisier […]