Visit Your Local PBS Station PBS Home PBS Home Programs A-Z TV Schedules Watch Video Support PBS Shop PBS Search PBS
 
 
VERA RUBIN
VERA RUBIN
USA (1928 -     )
Vera (Cooper) Rubin is an astronomer who has done pioneering work on galaxy rotation rates. Her discovery of what is known as "flat rotation curves" is the most direct and robust evidence of dark matter.
 

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.

Busque en el catálogo IR A     VER TODO     Mostrar 5 10 25 videos.

Encontrar videos por nombre

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.

PLAY VIDEO | VIEW TRANSCRIPT

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.

PLAY VIDEO | VIEW TRANSCRIPT

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.

PLAY VIDEO | VIEW TRANSCRIPT

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.

PLAY VIDEO | VIEW TRANSCRIPT

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?"

PLAY VIDEO | VIEW TRANSCRIPT

« 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 »

La Película | Video | Para Maestros | Guía de Programación | Noticias | Programa Planetario
Boletín | Calendario IYA | Recursos | Glosario | Contáctenos | Mapa del Sitio

© 2009 Interstellar Studios. All rights reserved.