Proposed idea of the universe being heliocentric, not geocentric.
the Revolution in chemistry
Created the theory of evolution by natural selection in 1859.
Discovered Germ Theory of Disease
the modern telescope
Robert Boyle, the father ofmodern chemistry, proposed an experimental theory of elements.
Isaac Newton builds the first reflecting telescope
mercury thermometer with temperature scale invented by german Gabriel Fahrenheit
Celsius temperature scale devised by Anders Celsius
James Watt patents the steam engine
wrote on convex lenses to treat longsightedness
was the first to observe micro- organisms
known for his advancement of public health
Discovered germ theory
pioneered antiseptic surgery
persian physician Razhes is the first to identify small pox as distinguished from measles and to suggest blood as the cause of infectious disease.
Dutch lens grinder Sacharius Jannssen invents microscope
Anton Van Leeuwenhoek refines the microscope making over 500 models
Rene' Laennec invents the stethoscope
Insulin first used to treat diabetes.