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John Dalton's birth
He was born on September 6, 1766 in Eaglesfield, England -
Lit and Phil - John Dalton
In 1794 he was elected a member of the Manchester Literary and Philosophical Society. Also, not so long after he made his first thesis about "Extraordinary facts relating to the vision of colours", in which he theorised that deficit on the perception of color was caused by discolouration of the liquid medium of the eyeball. -
Secretary of MLPS John Dalton
He becomes a secretary of the Manchester Literary and Philosophical Society in 1800. -
Experimental Essays - Dalton
He presented an important series of essays on the constitution of mixed gases, steam and other vapours pressure on different temperatures, both in a vacuum and in air, on evaporation, and on the thermal expansion of gases. These essays were named "Experimental Essays". They were published in the "Memoirs of the Lit & Phil" in 1802. -
Theory of Matter and Atomic Theory - Dalton
In 1803 John Dalton, proposed his atomic theory of matter, which would later state that as temperature rises, gasses expand, and the cause of the "Aurora borealis", otherwise known as the Northern Lights, visible in Sweden. Then on October 21, 1803, John Dalton first announced of his famous atomic theory. -
Fellowship for the Royal Society - Dalton
In 1810, Sir Humphry Davy asked Dalton to offer himself as a candidate for the fellowship of the Royal Society, but Dalton turned him down. It is possibly because of economical reasons. -
Principles of Volumetric Analysis - Dalton
In one of the memories that was read in 1814, Dalton explains the principles of volumetric analysis. -
Member of the Science Academy - Dalton
In 1824 he was made a corresponding member of the French Science Academy. -
Second Volume Dalton
The first part of his second volume was issued in 1827. However, the second part of vol. ii. never came out. -
Place of Davy - Dalton
In 1830 john was elected as one of its eight foreign associates in place of Davy. -
Dmitri Mendeleev was born
Born in the west of Siberia, Russia. -
Dalton's first stroke
Dalton had a minor stroke in 1837. -
Dalton's second stroke
Dalton had a second stroke in 1838 which left him with a speech impediment, though he was still able to do experiments. -
Dalton's third stroke
In May 1844 he had another stroke and then the 26th of July he wrote down his last meteorological observation. -
Dalton's Death
On July 27, in Manchester, Dalton fell from his bed and was found dead by his attendant. He had forty thousand Manchurians who went to his funeral to pay their respects. He was buried in Manchester's Ardwick cemetery which is now a playing field, but pictures of the original grave are published. -
Dalton's essays
In 1840 an essay about the phosphates and arsenates, was refused by the Royal Society, but he published it himself because he was insistent on publishing it. He did the same things later on with four other essays, two of which contained his discovery about the the atom theory and about some anhydrides when dissolved. -
J.J. Thomson was born
J.J Thomson was born in Cheetham Hill, near Manchester, UK. -
Dmitri Mendeleev wrote his first book
He wrote the book 'Organic Chemistry' which students could not comprehend. Mendeleev knew the reason behind the confusion of the students was because the elements were not organized on a table. -
Mendeleev wrote his second book of elements
He began to write the 'Principles of Chemistry' for the organization and explanation of the known ‘Typical’ elements: Oxygen, carbon, nitrogen, hydrogen.
Later on he added the halogens. -
Mendeleev organized the elements
He organized the elements out and filled out most of the elements that were still a mystery. Dmitri predicted the atomic masses of each one and placed them where he thought they belonged. -
Ernest Rutherford was born
In the village of Brightwater, New Zealand's South Island. -
J.J Thomson became Professor of Physics
J.J Thomson earned a membership in the prestigious Royal Society and was appointed Cavendish Professor of Physics. -
Niels Bohr was born
He was born in Copenhagen, Denmark. -
Erwin Schrödinger is born
Born in Vienna, Austria. Developed Quantum Physics. -
Mendeleev presents his research
He presented his research along with his table of elements. -
James Chadwick
Born in Cheshire, England -
Geroge Paget Thomson was born
J.J. Thomson's son Geroge Paget Thomson was born. George became a physicist and won a Nobel Prize. -
Mendeleev was rewarded
Named director of Russia’s new Central Board of Weights and Measures. -
J.J Thomson began his investigations.
Thomson began studying cathode rays, which are glowing beams of light that follow an electrical discharge in a high-vacuum tube. -
E.R. degree in Chemistry and Geology
From Canterbury College. He taught children for a short time. Then he won a scholarship, he went to the University of Cambridge in UK, working in J. Thomson's Laboratory -
J.J. Thomson discoverd the electron
J.J Thomson discovered the electron experimenting with cathode rays. -
Akademisches Gymnasium (Schrödinger)
After being homeschooled until 11, Schrödinger is moved to a formal school. -
E.R Discovery: alpha and beta radiation
Rutherford studied the radiation emitted by uranium. He discovered two different types of radiation; alpha and beta -
University of Vienna (Schrödinger)
Here, he met his mentor Fritz Hasenlöhr -
J.J Thomson receives a Novel Price
Received the Nobel Prize for his discovery of the electron. -
Mendeleev died
His students showcased a copy of the Periodic Table in his honor at his funeral in St. Petersburg. -
Nobel Prize of Chemistry E.R
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Beginning of studies
Chadwick studied in Manchester University. -
E.R. discovered there was more to his experiment
a concentration of mass in the center of the atom -
Discovery of the atomic nucleus
E. R. and a group of researchers, investigated what caused the alpha particles to be deflected from their straight-line paths. He proposed a new model for the atom, replacing J.J. Thomson model. -
Bohr's Doctorate
Bohr completed his doctorate in the Copenhagen University under the physicist Christian Christiansen. -
Graduated
James Chadwick graduated from the Honors School of Physics. -
Bohr's Post-gradual Studies
He moved to England and did experiments at Trinity College under J. J. Thomson (the discoverer of the electron). Then he did some others at the University of Manchester under Ernest Rutherford (the discoverer of the nucleus and the structure of atoms). -
Bohr gets married
Bohr gets married to Margaret Nørlund, the sister of a mathematician. -
Radioactivity Research
James Chadwick worked on Radioactivity with his teacher Ruthford in Manchester city. -
Received a Masters Degree on Science
James Chadwick finished his studies and received a Masters of Science. -
Bohr Model
In this year Bohr proposed his model of the atom and how it is structured. -
Drafted into WWI (Schrödinger)
After finishing his studies and in the middle of doing some research in Vienna, he was drafted. -
Nuclear Discoveries
Induce nuclear reaction in a stable element -
Award from Cambridge University
He received an Award for his Ph.D. from Cambridge University. -
Bohr - Nobel Prize
He was awarded a Nobel Prize in physics for his contributions to the structure of the atom. -
Mendeleev won Nobel Prize
For his research and findings of the elements of the periodic table. -
Schrödinger's Equation
Schrödinger comes up with a formula that allows to solve for the possible place of an electron at a certain moment -
Neutrons Exist!
James Chadwick proved the existence of neutrons. -
Nobel Prize
"for the discovery of new productive forms of atomic theory" -
Noble Prize of Physics
James Chadwick won a Nobel Prize in Physics due to his discovery. -
Death of Ernest Rutherford
at the age of 66 from a complication from a hernia -
Period: to
World War II
Bohr contributed with the US Atomic Energy Project during World War II. -
"What is Life?" (Schrödinger)
It was about lectures he gave in Berlin about the relationship between quantum physics, chemistry, and genetics. -
Advisory Committee on Atomic Energy
James Chadwick went back to England and worked in the Advisory Committee on Atomic Energy. He was also a scientific advisor for the Atomic Energy Commission of the United Nations. -
Copley Medal
James Chadwick received a Copley Medal. -
Franklin Medal
James Chadwick received a Franklin Medal. -
Erwin Schrödinger Dies
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Bohr's death
He died of heart failure in his home in Denmark. -
James Chadwick died
James Chadwick died in Cambridge, England.
