Monday, September 18, 2017

How Long Is a Year?: The Relativity of Time


As things age, each trip around the sun becomes an ever-shrinking percentage of its lifetime. Think about this: The average first grader is six years old when the school year starts. One year to them feels like one million years does to the Grand Canyon—for both, it’s one-sixth of their time on Earth. So how do you measure a year? -- FOLLOW POPULAR SCIENCE http://www.popsci.com Facebook: http://ift.tt/1mDk8YO Twitter: https://www.twitter.com/popsci Instagram: http://ift.tt/2ieE7iU Snapchat: http://ift.tt/2fSZV2X Pinterest: http://ift.tt/2idLrLJ -- MEDIA USED (CC BY 2.0) http://ift.tt/2enJQgs http://ift.tt/2xbWCs1 MEDIA USED (CC BY-SA 2.0) http://ift.tt/2xfJ40k http://ift.tt/2xaWedb MEDIA USED (CC BY-ND 2.0) http://ift.tt/2xfJ54o
by Popular Science via Endless Supplies .Biz - Brands

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