Body: A human blinks about 17,000 times a day — on average ev…

Question

Did you know? A human blinks about 17,000 times a day — on average every 4 seconds. Each blink interrupts vision for 0.3 seconds; yet we don't notice because the brain compensates for the blackout. In total that's about an hour and a half a day of being "blind".

Accepted Answer

A human blinks about 17,000 times a day — on average every 4 seconds. Each blink interrupts vision for 0.3 seconds; yet we don't notice because the brain compensates for the blackout. In total that's about an hour and a half a day of being "blind".

Een mens knippert zo'n 17.000 keer per dag — gemiddeld elke 4 seconden. Bij elke knipper wordt het beeld 0,3 seconden onderbroken; toch nemen we het niet waar omdat de hersenen die black-out compenseren. Dat is samen anderhalf uur per dag "blind".

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