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John Dalton's Timeline

Jhon Palomino, Erika Di Lorenzo

Nov. 24th

1766

Within this time period, John Dalton was born within a poor family full of tradesmen. His father was a weaver, whilst his grandfather was a shoemaker. His father was Joseph Dalton, whilst his grandfather was named Johnathan. Nevertheless, the family was very much poor and lacked much money for education.

John Dalton Fun Facts

John Dalton had short, slim hair with bangs overlapping the front of his head. He wore glasses with circle lenses, and often dressed with coats, and clothing/accessories in which were common back then..

Leave this for last

1793

By this time, John Dalton had moved to Manchester to teach mathematics at a new college; an academy. With him, the young man had brought proof sheets of his first ever book in which involved a collection of an array of essays involving meteorology based on his own observations. Nevertheless, one can say that this was the absolute takeoff of his career. During this time, he helped investigate the problem behind red-green colour blindness.

Meteorology Observation & Essays

This book was the first book published by John Dalton in 1793. This had made him famous, and more renown around certain areas. Nevertheless, this book was strictly base on the observation of meteorology and his essays; hence the name.

John Dalton's Book

1803

During this time, John Dalton had made his most influential piece of work. During the early 1800's, John Dalton had come off with a scientific theory in which involved the atom/chemistry. Traces as to how or why he had come up with this theory are non existent.

1803

Dalton's Atomic Theory

Dalton had initially claimed that all matter was composed and made from atoms. therefore making them indivisible and indestructible building blocks. Whilst all elements from the exact same element were the exact same, ones from other element varied in both size and mass. He had also proposed that all compounds were composed of combinations of these atoms in defined ratios.

His atomic theory utilized two scientific laws; the law of conservation, and the law of constant composition.

What was the theory?

Why?

What led to him making this theory?

Dalton based his partial pressure theory on the idea that only atoms repel off one another, whereas initial unlike atoms reacted much differently. Although, it had turned out that this claim was incorrect, helping him understand why each gas in a mixture behaved independently-- serving as a catalyst to show atoms of all atoms are not alike

Models

This model shows that different different atoms join together in simple ratios rather than repelling off each other like he previously thought.

Diagrams/models

1844/Death of John Dalton

1844

John Dalton had died after his second stroke hit him. He had died very quietly at his home Manchester in the date July 26th, 1844. It has been said that close to 40,000 people had attended his procession, appreciating his contribution towards science.

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