"...look into all things with a searching eye” - Baha'u'llah (Prophet Founder of the Baha'i Faith)


Jul 8, 2013

How often does the human eye blink?

The rate of blinking varies, but on the average the eye blinks once every five seconds or 17,000 times each day or 6.25 million times a year. (The Handy Science Answer Book, compiled by the Science and Technology department of the Carnegie Library of Pittsburgh)