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  -German mathematician and philosopher.
Math
-Worked on the improvement of calculators.
-Refined the binary system which is the basis of all modern computers.
Philosophy
-Optimistic
-Believes that this is the best possible universe god could have created.
-Wrote in Latin, French and German All information regarding Gottfried Wilhelm Leibniz - 
  
  -Used as a calculator untill the invention of the electronic calculator in the 1970's
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  Aged 70
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  -French-Scottish physician and chemist
-Known for his discoveries of: latent heat, specific heat, and carbon dioxide
-James Watt consulted with Black regarding steam engines
-Has modern university (University of Edinburgh, University of Glasgow) chemistry buildings named after him All information regarding Joseph Black - 
  
  -American-born British physicist and inventor.
-Described the cold as more than just a loss of heat.
-Worked on improving many household heating devices and coolant devices. (Chimney, Fireplace, Industrial Furnaces)
-Many houses in London were redone in order to remove smoke by his guidelines All information regarding Benjamin Thompson - 
  
  -Discovered that the addition of heat to ice does not cause a rise in the temperature of the ice and water mixture, but rather the addition of heat increases the volume of water in the mixture.
-This discovery marks the beginning of Thermodynamics. - 
  
  Aged 71
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  Aged 61
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  -English physicist
-Studied the nature of heat and its relationship with energy
-This leads to: The Theory of Mass Conservation
-Found a relationship between current, resistance and heat in a wire which is now called: Joule's Law All information regarding James Prescott Joule
-An unit of energy is named after him (Joule) - 
  
  Aged 70