20th Century – Positive Developments

SCIENCE & ART: Positive developments. Physics – Einstein’s relativity theory; quantum physics; space exploration and satellite communications. Inventions – the Wright brothers invent the airplane (1903); television, wireless telephony, digital computers, the Internet, transistor┬ámicrochips and integrated circuits, microwave cooking; nuclear power for electricity generation. Medicine – penicillin, x-ray, MRI, elimination of infantile paralysis; psychoanalysis, minimally invasive laparoscopic surgery.

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