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1000 BCE
The Start.
*Fire Discovery.
*Ceramic Works.
*Paint Works.
*The Paleolithic era is followed by the Mesolithic. The date of the Paleolithic–Mesolithic boundary may vary by locality as much as several thousand years. During the Paleolithic period, humans grouped together in small societies such as bands, and subsisted by gathering plants and fishing, hunting or scavenging wild animals.[. -
348 BCE
Antiquity.
*Matter Concept.
*Scientist Aristoteles, Democrito and Enpedocles.
* Prehistoric man seeks the origin and nature of everything around us , acquiring the knowledge to manufacture products that we use today . These ideas are born by way of answers to some number of myths that are combined as theogonies and cosmogony of these primitive peoples. -
Dec 24, 1214
Alchemy.
*Search of the philosopher's stone and the elixir of eternal youth.
* Scientist: Roger Bacon and Sato Tomas De Aquino
*Alchemy covers several philosophical traditions spanning some four millennia and three continents. These traditions' general penchant for cryptic and symbolic language makes it hard to trace their mutual influences and "genetic" relationships. -
Dec 24, 1423
Iatrochemistry
*Medicinal Chemistry.
*Metalurgy Development.
*Scientist: Paracelso and George Agricola.
*Iatrochemistry was a medical trend vanguard between the sixteenth and seventeenth centuries. His promoter was Paracelsus , a controversial Swiss scientist and alchemist.
*It has become obsolete , although it can be considered as the forerunner of modern pharmacology and biochemistry. -
Phlogiston
*Combustion phenomenon Theory.
*The theory of phlogiston , a hypothetical substance that represents flammability, is an obsolete scientific theory according to which any substance capable of having combustion contains phlogiston , and the combustion process is basically the decay of the substance. -
Lavoisier.
*Explain Combustion phenomenon.
*Scientific method phenomenon.
*During late 1772 Lavoisier turned his attention to the phenomenon of combustion, the topic on which he was to make his most significant contribution to science. He reported the results of his first experiments on combustion in a note to the Academy on 20 October, in which he reported that when phosphorus burned, it combined with a large quantity of air to produce acid spirit of phosphorus. -
Thermodynamics
*Thermodynamics as the branch of physics responsible for the study of the interaction between heat and other forms of energy.
*hermodynamics is a branch of science concerned with heat and temperature and their relation to energy and work. It defines macroscopic variables, such as internal energy, entropy, and pressure. -
Scientific Method
*The scientific method is a research method used mainly in the production of knowledge in the sciences.
*The scientific method is an ongoing process, which usually begins with observations about the natural world. Human beings are naturally inquisitive, so they often come up with questions about things they see or hear and often develop ideas (hypotheses) about why things are the way they are. -
Modern Chemistry
*Ponderal laws
*Discovery of chemical elements
*Atomic theory
*Chemical theory
*Organic chemistry
*Thermochemical
*Aunque en el s. XIII comenzó a vislumbrarse un cambio tras los trabajos de Roger Bacon, quien insistió en potenciar el experimento frente a la especulación, suele considerarse a Robert Boyle (1627-1691), que publicó en 1661 su obra “The Sceptical Chymist”, como el primer químico moderno.Descripción de la imagen. -
Today Chemistry
*New chemical knowledge is used to manufacture all kinds of plastic materials, medicines, cosmetics , cleaning products , lubricants, paints , fertilizers , explosives , synthetic fibers, new fuels , aviation metal alloys, etc.
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As the third millennium substantive issues that chemicals must attend arise worldwide .
Scientists from different areas agree that the biggest problem the world population is increasing , that means greater demand for food , clothing, medicines, water , fuel
