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Explore how scientific and technological inventions of the late 1800s and early 1900s revolutionized human lives through advances in medicine, improved living standards, and new scientific theories. Discover the impact of germ theory, antibiotics, better wages and working conditions, electricity, automobiles, radioactivity, and the role of the unconscious mind.
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How Did Scientific and Technological Inventions during the Late 1800s and Early 1900s Change Human lives? Br. Siraj Global History and Geography 10th Grade Boys/Girls 1/4/2020
Advances in Medicine • Germ Theory & Diseases • Anton V. Leeuwenhoek discovered microbes • Louis Pasteur showed link between the diseases and microbes (germs). He also showed that certain germs could be used to treat diseases. • Robert Koch showed Bacteria causing TB • Pasteur’s and Koch’s Ideas were established as Germ Theory Br. Siraj
Advances in Medicine • Infections and Antiseptics • Joseph Lister believed germs cause infections during surgical procedures. • He insisted on using antiseptics • Antibiotics • The discovery of penicillin by Alexander Fleming helped kill germs Br. Siraj
Improved Standard of Living • Better wages and Working Conditions • Labor unions and civil society reform groups pushed for better wages and safer working conditions during the later 1880s. • Better Housing • Improved Sanitation • Running Water and Underground Sewerage helped prevent waterborne diseases like Cholera and Dysentry. Br. Siraj
Improved Standard of Living • New Inventions also changes life • Electricity • The telephone by Alexander G. Bell • The Radio: Gugliemo Marconi • The Internal Combustion Engine by Nikolaus Otto [1870s] • Automobile and Airplane was possible due to Internal Combustion Engine Br. Siraj
New Scientific Theories • Radioactivity • Discovered by Marie Curie and Her Husband • Matters could now be transformed into energy. • Theory of Relativity • Albert Einstein proposed that space and time measurements are not absolute but are relative to many factors. • The world is very unpredictable. Br. Siraj
New Scientific Theories • Human Mind and the Role of Unconscious • Sigmund Freud came up with the subconscious and its role • Human Behavior is governed by the unconscious of our brain. • Psychoanalysis was born and treatment for mental illness. Br. Siraj
Homework • Questions 1, 2, 5 & 7 • Page # 641 of Textbook Br. Siraj