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  1. Antiseptic — 2020-02-25 13:12:39
    …in the same solution and assistants sprayed the solution in the operating theatre. == Little Organisms == As the "germ theory of disease" became more widely accepted, infection from surgery dropped dramatically. This led to the rise of sterile …
  2. Vaccination — 2017-07-09 10:30:27
    … Jenner inserted pus taken from a cowpox pustule and inserted it into an incision on the boy's arm. He was testing his theory, drawn from the folklore of the countryside, that milkmaids who suffered the mild disease of cowpox never contracted sm…
  3. Radio — 2017-07-05 10:54:29
    …iments (1887-1888) was able to demonstrate the existence of electromagnetic waves in an experiment confirming Maxwell's theory of electromagnetism. This discovery became known as "Hertzian waves" (radio waves). == 1894 == British physicist Oli…
  4. Charles Darwin — 2017-07-05 01:07:19
    …r time from common ancestors. === Origin of Species 1859 === Darwin ( 12 February 1809 –19 April 1882) published his theory of evolution with compelling evidence in his 1859 book On the **Origin of Species** His theory of evolution by natural…
    … selection, now the unifying theory of the life sciences, explained where all of the astonishingly diverse kinds of living things came from and how they be…
    …ca, suggesting that species adapted over time and to their environment. Charles Darwin was not the first to propose a theory of evolution but his work was so compelling it could not be ignored. == Links == [[http://darwin-online.org.uk]]…

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