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Wikipedia.org
Parsec (Wikipedia.org)

The parsec (symbol pc) is a unit of length used in astronomy. The length of the parsec is based on the method of trigonometric parallax, one of the oldest methods for measuring the distances to stars.

The name parsec stands for "parallax of one second of arc", and one parsec is defined to be the distance from the Earth to a star that has a parallax of 1 arcsecond. The actual length of a parsec is approximately 3.086×10 16 m, 3.262 light-years or 19,176,075,967,324.937miles.

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Con el descubrimiento del "Inflation Hole" en el año 2300, se hizo posible viajar desde este sistema solar al espacio exterior llegando a una velocidad superior a la de la luz mediante el ...
24m 24s |
a year ago
MEGAVIDEO
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3620
The Millennium Simulation(The most accurate 3D map of the universe) is complemented by the hauntingly beautiful Echoes by Pink Floyd. Note to watchers: pc: parsec - 3.262 light years or 30.9 Trillion ...
7m 41s |
2 years ago
YouTube
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conmanxxx (YouTube)
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250
Extremely time-stretched music, called miniarmusic. (video drop out @ 0:25, ok) Enjoy it! Yours Volker H.
10m 0s |
a year ago
YouTube
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Volker400 (YouTube)
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1210
A visitor for Aphelion.
7m 29s |
3 years ago
YouTube
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ckainjtl (YouTube)
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310
Intervista a Sun Chengyong, consigliere dell'Ufficio Scientifico e Tecnologico dell'Ambasciata Cinese in Italia. L'intervista è stata realizzata durante un convegno organizzato da Formez e CNR ...
7m 50s |
a year ago
YouTube
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unicafor (YouTube)
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368
Quando aprirò gli occhi l'unica cosa che potrò vedere sarà il buio delle mie palpebre chiuse come il ricordo dell'immagine di me riflessa nel fondo nero di una voragine e allora la pelle che un ...
7m 20s |
8 months ago
Dailymotion
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rv99942 (Dailymotion)
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3217
Nice space game with speech.
6m 14s |
2 years ago
YouTube
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keghaywood (YouTube)
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36
An explanation of how the different units of measurement used in astronomy fit together. The video includes definitions and use.
3m 27s |
10 months ago
YouTube
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