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Period: Feb 15, 1564 to
Gaileo Galilei's Life Span
Died at the age of 78 -
Jan 1, 1581
Galileo Discovers the pendulum principle
Galileo looked up at a swinging lamp and counted the time it took to swing back and forth and realized that the time remained constant. This was named the principle of swinging pendulum.
Source: http://www.enotes.com/galileo-galilei-64681-reference/galileo-galilei -
Galileo Claim to fame
Galileo creates the first type of thermometer: were a bulb of air would push water up or let it fall to measure temerature. This was unreliable but was the prototype to better models later. It sold fairly poorly. Age: 29
Source: http://www.enotes.com/galileo-galilei-64681-reference/galileo-galilei -
Period: to
Otto Von Guericke's Life Span
Died at the age of 84 -
Period: to
Evangelista Torreicelli's Life Span
Died at the age of 39 -
Galileo discovers Juptier Moons
Galileo uses his 30x telescope toward Jupiter and saw 3 moons orbiting which are now called the Galilean Moons.
Source: http://lasp.colorado.edu/education/outerplanets/moons_galilean.php -
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Pascal's Life span
Died at the age of 39 -
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Christiaan Huygens's Life span
Died at the age of 66 -
Torricelli Writes to Galileo
Torreicelli wrote a letter to Galileo, showing his support for him and his intrest for Galileo's work. When Galileo went to trial for Heresy, Torricelli quickly changed his intrests from the corpernicus theory.
Source: http://www-history.mcs.st-andrews.ac.uk/Biographies/Torricelli.html -
Galileo is convicted of Heresy
Galileo was convicted of Heresy and was sentenced to life imprisionment, ut due to poor health, was allowed to be under house arrest
Source: http://www.history.com/this-day-in-history/galileo-is-convicted-of-heresy -
Torricelli Moves in with Galileo
Torrecielli moved into Galileo's house to be an assistant and help with his experiments.
Soure: http://www-history.mcs.st-andrews.ac.uk/Biographies/Torricelli.html -
Torricelli Claim to fame
Torricelli built the first barmeter filling a 4 foot long tube with mercury which changed height based off the atmospheric pressure. Age:36
Source: http://inventors.about.com/od/tstartinventors/a/Barometer.htm -
Pascal claim to fame
Pascal discovered that the mercury barometer changed it's levels based on atmospheric pressure rather than a vacuum. Age: 25
Source: http://library.thinkquest.org/10170/voca/pascal.htm -
Von Gericke Claim to Fame
Von Guerick invents the first vacuum pump using a piston and an air gun cylinder. He used this in many experiments in his study of air pressure. Age:42
Source: http://www.history.com/this-day-in-history/galileo-is-convicted-of-heresy -
Von Guericke demonstrates the power of a vacuum
Von Guericke had sixteen horses pull at two halves of a copper sphere which they could not pull apart when in the vacuum.
Source: http://www.madehow.com/inventorbios/65/Otto-von-Guericke.html -
Von Guericke Invents first generator
Von Guericke invents the first type of static generator by rubbing sulfur balls that creates sizable sparks, though he didn't car much for the invention
Source: http://inventors.about.com/library/inventors/bl_otto_von_guericke.htm -
Huygens Claim to fame
Christiaan Invented the Manometer, which measued the elastic force of gases. Age: 32
Source: http://www.conservapedia.com/Christiaan_Huygens -
Huygens proposes light as waves
Christiaan Proposed that light is ade of waves, not particles which was believed at the time
Source: http://www.conservapedia.com/Christiaan_Huygens -
Period: to
John Dalton's Life span
Died at the age of 78 -
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Amedeo Avogadro's Life span
Died at the age of 80 -
Daltan's Claim to Fame
Dalton creates Dalton's Law. The law states that that the total pressure exerted by the mixture of non-reactive gases is equal to the sum of the partial pressures of individual gases. Age:25
Source: http://en.wikipedia.org/wiki/Dalton%27s_law -
Dalton Proposes Atmoic Theory
John propsed a new theory that is now the modern atmoic theory.
Source: http://scienceworld.wolfram.com/biography/Dalton.html -
Avogadro's Claim to fame
Avogadro created a law that states that under equal conditions of temperature and pressure, equal volumes of gases contain an equal number of molecules. Age:35
Source: http://www.rsc.org/chemsoc/timeline/pages/1811.html -
Avogadros number
Robert Brown was te first to try to calculate Avogadros number.
Source: http://www.moleday.org/htdocs/numhist.html
