Albert Einstein and the Great Telescope
In May 1921, Albert Einstein went on his very first trip across the United States. By that time, the famous scientist was already known around the world. Just two years earlier, in 1919, scientists had tested his Theory of General Relativity during a solar eclipse. They proved that massive objects like the Sun actually bend light traveling through space. During his tour, Einstein visited a quiet Midwest town called Williams Bay, Wisconsin. This small community was home to the Yerkes Observatory, a famous research center for studying the stars.
Built in 1897, the observatory was run by the University of Chicago. Its most special feature was a huge 40-inch refracting telescope. It was located inside a gigantic iron dome. A refracting telescope uses giant glass lenses to collect and focus light from space. Even today, it is still the largest refractor telescope ever built for scientific research. Scientists at the observatory used this powerful instrument to make detailed maps of star systems and measure distances in space.
- solar eclipse:
- An event where the Moon passes between the Earth and the Sun, temporarily blocking its light.
- refracting telescope:
- A telescope that uses large glass lenses to collect and focus light from distant objects.
- theoretical physicist:
- A scientist who uses mathematics and logical thought experiments to understand how the universe works.
- observatory:
- A specialized building containing large telescopes for studying stars, planets, and outer space.
- galaxies:
- Huge collections of stars, gas, and dust held together by gravity.
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“Albert Einstein and the Great Telescope” é um texto de biografia sobre Albert Einstein, escrito para o 5º ano. A leitura leva cerca de 3 minutos (375 palavras). O texto inclui um quiz interativo e uma atividade para imprimir com perguntas de compreensão e gabarito.