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E. E. BARNARD
E. E. BARNARD
USA (1857 - 1923)
Best known for his discovery of Barnard's star in 1916, Edward Emerson Barnard was a gifted astronomer who grew up with little formal education. In 1876, he purchased his first telescope, a 5-inch refractor and discovered his first comet in 1881. In 1892, he discovered Amalthea, the fifth moon of Jupiter, making him the first to discover a new Jovian moon since Galileo in 1609. After joining Yerkes Observatory at the University of Chicago in 1895, Barnard spent great amounts of time photographing the Milky Way. Posthumously, his photographs were published in 1927 as A Photographic Atlas of Selected Regions of the Milky Way.
 

Disfrute estos perspicaces y educacionales videoclips obtenidos de más de 70 horas de entrevistas con las más notables figuras en astronomía tomadas durante la filmación del documental 400 Años del Telescopio.

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Butler Burton

The chemistry of interstellar space
Butler Burton - NRAO, Green Bank

What is perhaps surprising about the molecules that have been detected is that so many of them are very familiar to us. Carbon monoxide – car exhaust. Alcohol. Ethanol. Formaldehyde – embalming fluid. Formic acid – what stings if an ant bites you. mercaptan – what smells if a skunk skunks you.

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Butler Burton

The Green Bank Telescope (GBT)
Butler Burton - NRAO, Green Bank

The Green Bank telescope is a section of a parabola 100 meters across, weighs 16 million pounds. It’s one of the largest moveable structures on land.

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Butler Burton

The development of radio astronomy
Butler Burton - NRAO, Green Bank

Radio telescopes have changed over the course of the past 50-70 years, but basically the modern radio telescopes all consist of a reflecting mirror which focuses the image in the receiver.

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Butler Burton

Jansky and Reber
Butler Burton - NRAO, Green Bank

Karl Jansky was a radio engineer. He was pulled off of this project by the telephone company who were more interested in practical matters. Although some astronomers had heard of this discovery, astronomers were not radio engineers, radio engineers were not astronomers, and it took a very unusual, iconoclastic individual, Mr. Rieber, to follow up on this.

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Butler Burton

Jan Oort and the hydrogen line
Butler Burton - NRAO, Green Bank

The astronomer who saw the potential most clearly was Professor Jan Oort in the Netherlands. It was the wartime occupation in the Netherlands gave him plenty of time to think and he set one of his graduate students the task of asking the question, "Would there be a discreet spectral line, a discreet tone coming from space, from a known source?"

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