SCIENCE 101 - CHICKEN LITTLE'S JOURNAL: HOW BIG IS BIG?

By arGee - About Me - E-mail this page - Add to My Favorites - Add to Blog List - See other blogs in Science & Nature

Sunday, December 7, 2003

HOW BIG IS BIG?

A lightyear is the distance light travels in a year. The numbers get so big that they lose meaning, so let’s set up a mental picture we can understand. In one second, a beam of light would travel around the Earth about seven and a half times, and since the circumference of the Earth is about 24,900... Sign in to see full entry.

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