What Is A Parsec?

Have you ever wondered what a parsec is? Parsecs, or their short form "pc" will crop up in many scientific texts, along with kpc (kiloparsecs = 1000 pc), Mpc (megaparsecs = 1000 kpc) and maybe even Gpc (gigaparsecs = 1000 Mpc). But what does it mean? In this video I will explain all!
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Видео What Is A Parsec? канала RichardB1983