The video owner has disabled playback on external websites.

This video is no longer available on YouTube.

This video cannot be played right now.

Watch on YouTube

Desbloquea herramientas de aprendizaje con IA

Regístrate para acceder a herramientas potentes que te ayudan a aprender más rápido con cada video.

Explicación de escena Cazador de frases Repaso con tarjetas Práctica de imitación Responder
Regístrate gratis
B1 Intermedio Inglés 7:24 Educational

Cosmos - Carl Sagan - 4th Dimension

carlsagandotcom · 4,892,525 vistas · Añadido hace 2 meses

Estadísticas de aprendizaje

B1

Nivel MCER

5/10

Dificultad

Subtítulos (154 segmentos)

00:03

in discussing the large scale structure

00:06

of the cosmos astronomers sometimes say

00:08

that space is

00:11

curved or that the universe is finite

00:15

but

00:16

unbounded whatever are they talking

00:19

about let's imagine that we are

00:21

perfectly flat I mean absolutely flat

00:25

and that we live appropriately enough in

00:27

a flat land a

00:30

land designed and named by Edwin Abbott

00:34

a Shakespearean scholar who lived in

00:36

Victoria in England everybody in

00:38

flatland is of course exceptionally flat

00:41

we have squares circles triangles and we

00:44

all Scurry about and we can go into our

00:48

houses and do our flat business now

00:54

we have width and length but no height

00:59

at at all now these little cutouts have

01:02

some little height but let's ignore that

01:04

let's imagine that these are absolutely

01:06

flat that being the case we know us

01:10

Flatlanders about left right and we know

01:13

about forward back but we have never

01:16

heard of up down let us imagine that

01:20

into flatland hovering above it comes a

01:24

strange three-dimensional creature which

01:27

oddly enough looks like an apple and the

01:30

three-dimensional creature sees an

01:32

attractive congenial looking Square

01:36

watches it enter its house and decides

Subtítulos completos disponibles en el reproductor

Practica con ejercicios

Genera ejercicios de vocabulario, gramática y comprensión de este video

Vocabulario y gramática Test de comprensión Examen IELTS Práctica de escritura
Regístrate para practicar
¡No hay comentarios todavía. Sé el primero en compartir tus ideas!

Regístrate para desbloquear todas las funciones

Sigue tu progreso, guarda vocabulario y practica con ejercicios

Aprende idiomas gratis