Atomic Times |
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Dalton Unveils Atomic Theory |
Antoine Lavoisier reveals new law Recently, Antoine Lavoisier's various experiments have dealt with combustion and burning. He proved that burning cannot take place without a fuel and oxygen. His experiments were some of the first quantitative chemical experiments. He proved that matter can, and often does, change state in a chemical reaction, the quantity of matter before is identical to the amount afterwards. Lavoisier conceived a chemical nomenclature which has been adopted as the basis of all modern chemistry. This was described in his book the Method of Chemical Nomenclature. His second book, Elementary Treatise of Chemistry, is the first chemical textbook and it showed a joined view on new chemistry theories and had a clear statement of the Law of Conservation of Mass. This law is one of the most important chemical laws to date. It states that the mass of any matter will always be fixed and that matter can neither be created nor destroyed - it only changes form. Article by Chris Lesure |
Planck's Hypothesis Late last night Professor Max Planck developed a science changing hypothesis. Several
scientists have made several attempts at reconciling theory with experiment
but, failed until in 1900 when Max Planck proposed that vibrating atoms that
give off light do so in small amounts. That is, energy was postulated to be quantised,
given by the relation E= NhF where F is the frequency of vibration, N an
integer, and the constant h is an empirical constant of nature, required by dimensional
analysis, and is called Planck's constant. Its numerical value is given
by the formula h= 6.62618 x 10 raised to -34. This discovery revolutionized
the entire science scene. Article By Tom Levario |
The first is that "All matter consists
of tiny particles." This means that all objects are composed
of atoms. His second postulate is that "Atoms are indestructible and
unchangeable." What he meant by that is that atoms
of a specific element cannot be developed, broken
down, destroyed, or changed into atoms of a
different element. The third statement says that all atoms of a specific
element have exact weights, and no two
elements have matching weights. His final statement
says that when elements react with one another, they
join in manageable, whole-numbered ratios. These four, simple
postulates clarified both the law of definite proportions
and the law of multiple proportions. Article By Chris Lesure |
John Dalton, a local meteorologist, explained that two solids cannot
inhabit the same location as each other. He backed up his theory by stating that
evaporated water is isolated from the various gases |
that make air. He concluded that the sizes of the particles composing different gasses
must, in turn, be different. He then took this one step further and realized the connection between the atomic weights and the weight relations in the chemical reactions. By doing this, he was the first scientist to affiliate atoms and stoichiometry. His Atomic Theory is based on four major points. |
Joseph Proust Dies Last Night Joseph Proust was one of the forefront scientists in the development of the atomic theory. He was a French chemist born at Angers in northwest France, in September 26, 1754. He first studied in Paris and became chief apothecary at Saltpetriere Hospital. He then went to Madrid to become director of the Royal Laboratory under the patronage of Charles IV in 1789. While in Spain, Napoleon invaded Spain and destroyed Proust's laboratories in the process. Because of that, Proust moved back to France in 1808. He then lived his life in poverty for some years before receiving a pension by Louis XVIII. While Proust was in Spain, he formulated his law of definite proportions. He discovered grape sugar and established the law of definite proportions, also known as Proust's law, which states that in any compound the elements are present in a fixed proportion by weight. This law was a very big help in creating the atomic theory. Now the great mind that developed the law of definite proportions and that helped develop the atomic theory is dead. The most common story of how he died was he was working on a problem in sand on a beach when one of Napoleon's soldiers found him. He was ordered to capture Joseph Proust for his genius. When the soldier told him to come with him Proust just pushed him to the side telling him to not step in the sand where his work is. Angered the soldier took his sword out and stabbed Proust, killing him eventually because it caught him in the lung. He died some time last year in the year 1826 Article By Tom Levario. |
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