Saltar navegación

Activa JavaScript para disfrutar de los vídeos de la Mediateca.

Early Mariner Navigation - Contenido educativo

Ajuste de pantalla

El ajuste de pantalla se aprecia al ver el vídeo en pantalla completa. Elige la presentación que más te guste:

Subido el 28 de mayo de 2007 por EducaMadrid

330 visualizaciones

NASA Connect Segment exploring the history of man's conquest of the seas. The video explains how boats navigated the waters.

Más información Transcripción

Descargar la transcripción

Okay, is this our next stop? 00:00:00
Mariner's Museum. There has to be something on navigation here. 00:00:03
Excuse me, are you with the NASA Road Rally? 00:00:11
Yes, I am. Do you have your logbook with you? 00:00:13
Oh, I sure do. Now, according to our instructions, we're supposed to learn something from you about early navigation. 00:00:15
Well, here at the Mariner's Museum in Newport News, Virginia, we tell the story of man's conquest of the seas. 00:00:21
When people set out to explore the oceans, they had to create a system of measurement to determine their location. 00:00:27
To determine the distance along north to south, the navigator had to determine the altitude of the sun. 00:00:32
For instance, if the sun on the equator at noon is 90 degrees to the horizon, and if the sun at the north pole is 0 degrees, 00:00:38
then the degrees in between note a ship's position. This is called latitude. 00:00:44
To locate his east to west position, the navigator had to measure the difference between local times. 00:00:49
For example, when the sun was at noon in different places. 00:00:54
This is called longitude, and spring-driven clocks were a great boon to determining that position. 00:00:56
Although the cross staff, the magnetic compass, and the spring-driven clock were high-tech for their day, 00:01:01
ancient mariners continued to navigate a lot by what we call dead reckoning. 00:01:06
That is, by estimating their position travel from a previously determined position. 00:01:10
Ah, I see you have one of those GPS contraptions. That's the way to navigate today. 00:01:15
Captain, this has been very interesting, but you know, looking at my watch, I think we need to be shoving off. 00:01:18
So, do you have a clue for us? 00:01:24
Well, I think I might. 00:01:25
On your next stop, you're going to be studying how early aviators and today's pilots navigate their way through the skies. 00:01:26
Now, I'm waiting with you! 00:01:31
Valoración:
  • 1
  • 2
  • 3
  • 4
  • 5
Eres el primero. Inicia sesión para valorar el vídeo.
Idioma/s:
en
Materias:
Matemáticas
Niveles educativos:
▼ Mostrar / ocultar niveles
      • Nivel Intermedio
Autor/es:
NASA LaRC Office of Education
Subido por:
EducaMadrid
Licencia:
Reconocimiento - No comercial - Sin obra derivada
Visualizaciones:
330
Fecha:
28 de mayo de 2007 - 16:53
Visibilidad:
Público
Enlace Relacionado:
NASAs center for distance learning
Duración:
01′ 35″
Relación de aspecto:
4:3 Hasta 2009 fue el estándar utilizado en la televisión PAL; muchas pantallas de ordenador y televisores usan este estándar, erróneamente llamado cuadrado, cuando en la realidad es rectangular o wide.
Resolución:
480x360 píxeles
Tamaño:
9.60 MBytes

Del mismo autor…

Ver más del mismo autor

EducaMadrid, Plataforma Educativa de la Comunidad de Madrid

Plataforma Educativa EducaMadrid