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The Columbia tragedy : system level issues for engineering

REA Catalogado

Average rating: 

2

Promedio: 2 (1 reseña)

In this lecture Sheila Widnall served on the board investigating Columbia’s destruction in February, 2003, and she can describe the technical failures that led, moment by moment, to the ghastly trail of debris across the western United States. Well-intentioned people, Widnall states, became desensitized to deviations from the norm. NASA managers treated repeated anomalies -- such as foam smashing into shuttle tiles on take off -- as “maintenance turnaround events.”

Tema: general: 

• Ingeniería y Ciencias Aplicadas›Ingeniería›Ingeniería Aeronáutica y Astronáutica

NASA's "Beyond Einstein" Program: Exploration at the Limits of Space & Time

REA Catalogado

Average rating: 

3

Promedio: 3 (1 reseña)

This video is worth seeing because it is informative, well presented, easy to understand, and it answers some questions asked by students on this topic.

Tema: general: 

• Ciencias›Física

Hubble space telescope

REA Catalogado

Video lecture that "looks at the astronomical discoveries and achievements of one of the great observatories of all time, the Hubble Space Telescope. The lecture emphasizes how its images and results help us further understand the origin of the universe, as well as the stars and galaxies within it." As stated by the author these are "Hubble's Greatest Hits".

Tema: general: 

• Ciencias›Astronomía y Astrofísica

Asking big questions about the universe

REA Catalogado

Average rating: 

4

Promedio: 4 (1 reseña)

In keeping with the theme of TED2008, professor Stephen Hawking asks some Big Questions about our universe -- How did the universe begin? How did life begin? Are we alone? -- and discusses how we might go about answering them.

Tema: general: 

• Ciencias

Talks David Hoffman: Catch Sputnik mania!

REA Catalogado

Average rating: 

3

Promedio: 3 (1 reseña)

Filmmaker David Hoffman shares footage from his feature-length documentary, Sputnik Mania, which shows how the Soviet Union's launch of Sputnik in 1957. This led to both the space race and the arms race -- and jump-started science and math education around the world

Tema: general: 

• Ingeniería y Ciencias Aplicadas›Ingeniería›Ingeniería Aeronáutica y Astronáutica

Visual space perception: phenomenology and function

REA Auditado

This article presents a brief overview of visual space perception. It begins by noting the significance of visual space perception to broader issues in philosophy and science and observes that the appreciation of visual space perception as a scientific topic is impeded by naïve realism. The second section notes the longstanding interest in the phenomenology of visual space and focuses on one issue, the dissocation between perceived location and perceived shape in visual space.

Tema: general: 

• Ciencias de la Salud›Medicina›Otras Ramas de la Medicina (incluyendo Odontología)

Perceptual constancy in judgments of egocentric distance: prevailing binocular information

REA Auditado

Binocular cues were considered the prevailing information on specifying depth since the beginning of vision research. In the present study, two perceptual responses, the classical verbal report and a more recent method, open-loop walking, were used to assess the role of binocular information for egocentric distance perception. In two cue conditions environments, full- and reduced-cue, observers judged and walked egocentric distances of stimuli presented at eye-level, under binocular or monocular viewing.

Tema: general: 

• Ciencias de la Salud›Medicina›Otras Ramas de la Medicina (incluyendo Odontología)

Private Universe Project in Science: Workshop 1. Astronomy: Eliciting Student Ideas

REA Auditado

Introduces constructivism by examining student beliefs on what causes the seasons and their explanations for the phases of the moon. Educators and scientists participate in a video conference/workshop from sites around the country on October 13, 1994. The participants discuss students' difficulties in understanding the causes of the seasons and hold it up as an example of the difficulty of helping students change their conceptions of scientific phenomena.

Tema: general: 

• Ciencias

Essential Science for Teachers: Earth and Space Science: Session 8. Order out of Chaos: Our Solar System

REA Auditado

Why do all the planets orbit the Sun in the same direction and why are the planets closest to the Sun so different from the gas giants farther out? In this session, participants gain a better understanding of the nature of the solar system by examining its formation. Students explore the question: What is the relative scale of the planets in the solar system?

Tema: general: 

• Ciencias

Essential Science for Teachers: Earth and Space Science: Session 7. Our Nearest Neighbor: The Moon

REA Auditado

Why is the Moon, our nearest neighbor in the solar system, so different from the Earth? In this session, participants explore the complex connections between the Earth and Moon, the origin of the Moon, and the roles played by gravity and collisions in the Earth–Moon system. Students and scientists explore the question: Could the moon have formed alongside the earth or been captured by the earth?

Tema: general: 

• Ciencias