A Brief History of Time#1 NEW YORK TIMES BESTSELLER |
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It appeared that each observer must have his own measure of time , as recorded by a clock carried with him ... Part of the pulse is reflected back at the event and the observer measures the time at which he receives the echo .
Hubble was forced , therefore , to use indirect methods to measure the distances . Now , the apparent brightness of a star depends on two factors : how much light it radiates ( its luminosity ) , and how far it is from us .
Moreover , the more accurately one measures the position , the shorter the wavelength of the light that one needs and ... In other words , the more accurately you try to measure the position of the particle , the less accurately you can ...
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LibraryThing Review
Crítica de los usuarios - DzejnCrvena - LibraryThingI got the version with no pictures in it, so I can't understand some concepts mentioned in the book. May reread later when I become (more) interested in physics or astronomy. It's one of the books I just picked randomly, even though my significant other mentioned it at least once. Leer comentario completo
LibraryThing Review
Crítica de los usuarios - Rose999 - LibraryThingHa, what can you say about this book? I liked it a lot, the concepts are extremely difficult to grasp at times but we are talking about theories that are being worked on by some of the most ... Leer comentario completo
Contenido
Our Picture of the Universe | 1 |
Space and Time | 15 |
The Expanding Universe | 37 |
Derechos de autor | |
Otras 15 secciones no mostradas
Otras ediciones - Ver todas
A Brief History of Time: From the Big Bang to Black Holes Stephen Hawking,Carl Sagan Vista de fragmentos - 1990 |
Términos y frases comunes
Referencias a este libro
Qualitative Data Analysis: A User-friendly Guide for Social Scientists Ian Dey Sin vista previa disponible - 1993 |
Postmodern Public Administration: Toward Discourse Charles J. Fox,Hugh T. Miller Vista de fragmentos - 1995 |