America 250: How has telescope technology evolved since the dawn of the U.S.?

America 250: How has telescope technology evolved since the dawn of the U.S.?. Optical telescopes have come a long way in the past two-and-a-half centuries — from the homemade telescope of William Herschel to the orbiting Hubble Space Telescope.

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Trechos de apoio da pauta: The past 250 years of optical telescopes have seen revolutionary discoveries and technology that the telescope's inventor, a seventeenth century spectacle-maker by the name of Hans Lippershey, maybe wouldn't have believed possible. When we look back through the annals of telescope history, we find that a significant turning point came, coincidentally, just five years after the United States' Declaration of Independence was christened.It was back in England, in 1781.

• Ponto de atenção: america.
• Ponto de atenção: telescope.
• Ponto de atenção: technology.

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